Bronze U Clamps, Bronze U Bolt Clamps, Bronze Grounding Clamps

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Bronze Grounding Clamps , U bolt Rod Clamps Bronze, U bolt clamps

Bronze U Clamps , Bronze U Bolt Clamps & Bronze Grounding U Clamps – Heavy Duty Ground Rod Connectors

Bronze Grounding Clamps , U bolt Rod Clamps Bronze, U bolt clamps
Bronze U Bolt clamps, Bronze Ground clamps , Bronze U clamps,

Premium Bronze Grounding Clamps, U Bolt Grounding Clamp, and Connectors Solutions from India
PRICE: US$ 11.50/kilogram

We are one of the leading manufacturers and exporters of Bronze U clamps, Bronze grounding U clamps, and specialized grounding hardware from India. We have been supplying high-quality Bronze grounding solutions to the world market for many decades. Our extensive experience in Bronze casting at our Bronze casting foundry in Jamnagar spans over three decades in manufacturing precision-engineered Bronze U bolt ground connectors, Bronze ground rod clamps, and comprehensive grounding system components. Our state-of-the-art manufacturing facility utilizes advanced CNC machining, precision forging, and quality control systems to deliver superior Bronze grounding products that meet international standards including ASTM, BS, IS, DIN, and JIS specifications. We serve diverse industries including telecommunications, power generation, electrical utilities, construction, and industrial installations across North America, Europe, Asia-Pacific, and Middle East regions. Our commitment to quality, competitive pricing, and reliable delivery schedules has established us as a trusted partner for electrical contractors, system integrators, and OEM manufacturers worldwide requiring dependable Bronze grounding solutions.

Types of Bronze U Clamps and Grounding Components

Bronze U Clamps for General Applications

Bronze U clamps represent the most versatile category of our grounding hardware, manufactured from high-grade Bronze alloys including Cu-Sn8, Cu-Sn10, and specialized Bronze compositions. These robust clamps feature precision-machined U-shaped frames with integrated threaded mounting systems, designed to accommodate conductor sizes ranging from 14 AWG to 500 MCM. The Bronze construction provides excellent corrosion resistance, superior electrical conductivity, and mechanical durability in harsh environmental conditions. Standard Bronze U clamps incorporate hardened stainless steel hardware, ensuring long-term reliability in direct burial applications, coastal environments, and industrial installations where galvanic corrosion resistance is critical.

U Bolt Grounding Clamps

U Bolt Grounding Clamps are robust and highly reliable components designed to create a secure and permanent electrical grounding connection on pipes, rods, and other cylindrical surfaces. The clamp body is typically cast from high-quality bronze, a material chosen for its exceptional electrical conductivity and superior corrosion resistance, ensuring a low-impedance path to ground that remains stable over time. These clamps are furnished with a U-bolt and nut set, which can be specified in either copper for maximum conductivity or stainless steel for supreme mechanical strength and environmental durability. The combination of the bronze body and the choice of U-bolt material allows for a powerful clamping force and excellent electrical performance, making them an indispensable solution for grounding and bonding applications in electrical utilities, telecommunications, industrial plants, and lightning protection systems.

Bronze Grounding U Clamps – Specialized Electrical Applications

Bronze grounding U clamps are specifically engineered for permanent electrical grounding installations, featuring enhanced contact surfaces, multiple conductor accommodation, and specialized Bronze alloy compositions optimized for electrical performance. These precision-manufactured components utilize advanced Bronze casting and machining techniques to achieve superior surface finish, dimensional accuracy, and electrical continuity. Our Bronze grounding U clamps incorporate patented jaw designs that provide uniform pressure distribution across conductor contact areas, minimizing resistance and ensuring reliable long-term electrical connections. Available in multiple configurations including parallel mount, right-angle mount, and adjustable positioning systems to accommodate various installation requirements.

Bronze Ground Rod Clamps – Professional Grade Rod Connection Systems

Bronze ground rod clamps are heavy-duty connecting devices specifically designed for secure attachment of grounding conductors to driven ground rods, utilizing high-strength Bronze castings and precision-machined components. These specialized clamps accommodate standard ground rod diameters from 1/2 inch to 1 inch (12.7mm to 25.4mm) and conductor ranges from #6 AWG to 500 MCM. The Bronze construction ensures exceptional corrosion resistance when used with Copper or Bronze ground rods, eliminating galvanic corrosion concerns common with dissimilar metal combinations. Each Bronze ground rod clamp features integrated strain relief, vibration resistance, and weatherproof sealing capabilities suitable for underground installations and extreme environmental conditions.

Bronze U Bolt Ground Connectors – Industrial Strength Solutions

Bronze U bolt ground connectors represent our premium line of heavy-duty grounding hardware, incorporating high-tensile Bronze U-bolts, precision-cast Bronze clamp bodies, and hardened fastener systems designed for maximum mechanical strength and electrical performance. These industrial-grade connectors feature dual-conductor accommodation, allowing simultaneous connection of main grounding conductors and equipment bonding jumpers. The Bronze U bolt construction provides superior flexibility in installation angles while maintaining consistent clamping force across the entire conductor contact area. Advanced Bronze alloy compositions including Silicon Bronze (Cu-Si3) and Aluminum Bronze (Cu-Al10) options are available for specialized applications requiring enhanced strength or specific environmental resistance characteristics.

Material Grades and International Standards

Bronze Alloy Specifications

Phosphor Bronzes (C50000-C52999)

UNS Number	Common Name	Cu %	Sn %	P %	Pb %	Zn %	Other Elements	Status
C50100*		Rem	0.50-0.8	0.01-0.05	0.05 max	0.05 max		Active
C50150*	Copper Tin Phos Zirconium	99.0 min	0.50-0.8	0.004-0.015			0.04-0.08 Zr	Active
C50200*		Rem	1.0-1.5	0.04 max	0.05 max	0.10 max		Active
C50500*	Phosphor Bronze, 1.25% E	Rem	1.0-1.7	0.03-0.35	0.05 max	0.30 max	0.10 max Fe	Active
C50510*		Rem	1.0-1.5	0.02-0.07		0.10 max	0.25 max Fe, 0.15-0.40 Ni	Active
C50580*		Rem	1.0-1.7	0.01-0.35	0.05 max	0.30 max	0.05-0.20 Fe, 0.05-0.20 Si	Active
C50700*		Rem	1.5-2.0	0.30 max	0.05 max	0.10 max		Active
C50710*	MF202	Rem	1.7-2.3	0.10 max		0.15 max	0.40 max Ni	Active
C50800*	Tin Brass	Rem	2.6-3.4	0.01-0.07	0.05 max	0.10 max		Inactive
C50900*		Rem	2.5-3.8	0.03-0.30	0.05 max	0.30 max	0.10 max Fe	Active
C51000*	Phosphor Bronze, 5% A	Rem	4.2-5.8	0.03-0.35	0.05 max	0.30 max	0.10 max Fe	Active
C51100*		Rem	3.5-4.9	0.03-0.35	0.05 max	0.30 max	0.10 max Fe	Active
C51800*	Phosphor Bronze	Rem	4.0-6.0	0.01 max	0.02 max	0.10 max	0.35 max Ni	Active
C51900*		Rem	5.0-7.0	0.03-0.35	0.05 max	0.30 max	0.10 max Fe	Active
C52100*	Phosphor Bronze, 8% C	Rem	7.0-9.0	0.03-0.35	0.05 max	0.20 max	0.10 max Fe	Active
C52400*	Phosphor Bronze, 10% D	Rem	9.0-11.0	0.03-0.35	0.05 max	0.20 max	0.10 max Fe	Active
C52850		Rem	5.0-6.0	0.01-0.10		0.50 max	0.10 max Fe, 0.50 max Ni	Active

Leaded Phosphor Bronzes (C53000-C54999)

UNS Number	Common Name	Cu %	Sn %	P %	Pb %	Zn %	Other Elements	Status
C53400	Phosphor Bronze B-1	Rem	3.5-5.8	0.03-0.35	0.8-1.2	0.30 max	0.10 max Fe	Active
C54400	Phosphor Bronze B-2	Rem	3.5-4.5	0.01 max	3.0-4.0	1.5-4.5	0.50 max Ni	Active

Brazing Alloys (C55000-C55299)

UNS Number	Common Name	Cu %	Ag %	P %	Status
C55180*		Rem	4.8-5.2		Active
C55181*		Rem	7.0-7.5		Active
C55280*		Rem	6.8-7.2	1.8-2.2	Active
C55281*		Rem	5.8-6.2	4.8-5.2	Active
C55285*	Copper-Silver Phosphorus Brazing Alloy	Rem	17.2-18.0	6.0-6.7	Active

Aluminum Bronzes (C60800-C64699)

UNS Number	Common Name	Cu %	Al %	Fe %	Ni %	Mn %	Other Elements	Status
C60800		Rem	5.0-6.5	0.10 max			0.02-0.35 As	Active
C61000*		Rem	6.0-8.5	0.02 max	0.50 max		0.10 max Si	Active
C61300*		Rem	6.0-7.5	2.0-3.0	0.015 max	0.20 max	0.15 max Si	Active
C61400*		Rem	6.0-8.0	1.5-3.5	0.015 max	1.0 max		Active
C61800*		Rem	8.5-11.0	1.5 max	0.10 max			Active
C62200*		Rem	11.0-12.0	3.0-4.2	0.10 max			Active
C62300*	Aluminum Bronze, 9%	Rem	8.5-10.0	2.0-4.0	1.0 max	0.25-0.50		Active
C62400*	Aluminum Bronze, 11%	Rem	10.0-11.5	2.0-4.5	0.30 max	0.25 max		Active
C62500*		Rem	12.5-13.5	3.5-5.5	2.0 max			Active
C63000*	Aluminum Bronze	Rem	9.0-11.0	2.0-4.0	4.0-5.5	0.25-1.5		Active
C63200*	Aluminum Bronze	Rem	8.7-9.5	3.5-4.3	4.0-4.8	1.2-2.0	0.10 max Si	Active

Silicon Bronzes (C64700-C66199)

UNS Number	Common Name	Cu %	Si %	Mn %	Fe %	Zn %	Other Elements	Status
C64700*	Silicon Bronze	Rem	1.6-2.2	0.40-0.8	0.10 max	0.50 max		Active
C64710*		95.0 min	2.9-3.5	0.10-0.50	0.50 max		0.9 max Ni	Active
C65100*	Low-Silicon Bronze B	Rem	1.5 max	0.7-0.8	0.8 max	2.0 max		Active
C65300*	Silicon Bronze	Rem	2.0-2.6			0.08 max		Active
C65400		Rem	2.7-3.4	1.2-1.9	0.50 max		0.01-0.12 Cr	Active
C65500*	High-Silicon Bronze A	Rem	2.8-3.8	0.6-1.3	0.8 max	1.5 max		Active
C65600*		Rem	2.8-4.0	1.5 max	1.5 max	0.50 max	0.01 max Pb	Active

Other Copper-Zinc Alloys (C66200-C69999)

UNS Number	Common Name	Cu %	Zn %	Mn %	Fe %	Other Elements	Status
C66700*	Manganese Brass	68.5-71.5	Rem	0.8-1.5	0.10 max		Active
C67000	Manganese Bronze B	63.0-68.0	Rem	2.5-5.0	2.0-4.0	3.0-6.0 Al	Active
C67500	Manganese Bronze A	57.0-60.0	Rem	0.8-2.0	0.25 max	0.05-0.50 Al	Active

Cast Bronze Alloys (C90000 – C95999)

Tin Bronzes (C90000-C91999)

UNS Number	Common Name	Cu %	Sn %	Pb %	Zn %	Fe %	Other Elements	Status
C90200		91.0-94.0	6.0-8.0	0.30 max	0.50 max	0.20 max	0.05 max P	Active
C90250	Tin Bronze	89.0-91.0	9.0-11.0	0.30 max	0.50 max	0.25 max	2.0 max Ni	Active
C90280*		87.0-90.0	9.0-11.0	0.09 max	0.30 max	0.6 max		Active
C90300	Tin Bronze	86.0-89.0	7.5-9.0	0.30 max	3.0-5.0	0.20 max	0.05 max P	Active
C90400*	Tin Bronze	86.0-89.0	7.5-8.5	0.09 max	1.0-5.0	0.40 max	0.10 B, 0.10 Zr	Active
C90500	Gun Metal	86.0-89.0	9.0-11.0	0.30 max	1.0-3.0	0.20 max	0.05 max P	Active
C90700	Tin Bronze, 65	88.0-90.0	10.0-12.0	0.50 max	0.50 max	0.15 max		Active
C90800	Tin Bronze	85.0-89.0	11.0-13.0	0.25 max	0.25 max	0.15 max		Active
C90900		86.0-89.0	12.0-14.0	0.25 max	0.25 max	0.15 max		Active
C91000		84.0-86.0	14.0-16.0	0.20 max	1.5 max	0.10 max		Active
C91100		82.0-85.0	15.0-17.0	0.25 max	0.25 max	0.25 max	1.0 max Ni	Active
C91300		79.0-82.0	18.0-20.0	0.25 max	0.25 max	0.25 max	1.0 max Ni	Active
C91600		86.0-89.0	9.7-10.8	0.25 max	0.25 max	0.20 max	1.2-2.0 Ni	Active
C91700	Nickel Gear Bronze	84.0-87.0	11.3-12.5	0.25 max	0.25 max	0.20 max	1.2-2.0 Ni	Active

Leaded Tin Bronzes (C92000-C92900)

UNS Number	Common Name	Cu %	Sn %	Pb %	Zn %	Fe %	Other Elements	Status
C92200	Navy M Bronze	86.0-90.0	5.5-6.5	1.0-2.0	3.0-5.0	0.25 max		Active
C92300	Leaded Tin Bronze	85.0-89.0	7.5-9.0	0.30 max	2.5-5.0	0.25 max		Active
C92400		86.0-89.0	9.0-11.0	1.0-2.5	1.0-3.0	0.25 max		Active
C92500		85.0-88.0	10.0-12.0	1.0-1.5	0.50 max	0.30 max	0.8-1.5 Ni	Active
C92700	Leaded Tin Bronze	86.0-89.0	9.0-11.0	1.0-2.5	0.7 max	0.20 max		Active
C92800		78.0-82.0	15.0-17.0	4.0-6.0	0.8 max	0.20 max		Active
C92900		82.0-86.0	9.0-11.0	2.0-3.2	0.25 max	0.20 max	2.8-4.0 Ni	Active

High-Leaded Tin Bronzes (C93000-C94500)

UNS Number	Common Name	Cu %	Sn %	Pb %	Zn %	Fe %	Status
C93100		Rem	6.5-8.5	2.0-5.0	2.0 max	0.25 max	Active
C93200		81.0-85.0	6.3-7.5	6.0-8.0	1.0-4.0	0.20 max	Active
C93400		82.0-85.0	7.0-9.0	7.0-9.0	0.8 max	0.20 max	Active
C93500		83.0-86.0	4.3-6.0	8.0-10.0	2.0 max	0.20 max	Active
C93600		79.0-83.0	6.0-8.0	11.0-13.0	1.0 max	0.20 max	Active
C93700	Bearing Bronze	78.0-82.0	9.0-11.0	8.0-11.0	0.8 max	0.7 max	Active
C93800	Anti-acid Metal	75.0-79.0	6.3-7.5	13.0-16.0	0.8 max	0.15 max	Active
C93900	79-6-15	76.5-79.5	5.0-7.0	14.0-18.0	1.5 max	0.40 max	Active
C94000		69.0-72.0	12.0-14.0	14.0-16.0	0.50 max	0.25 max	Active
C94100		72.0-79.0	4.5-6.5	18.0-22.0	1.0 max	0.25 max	Active
C94300	Soft Bronze	67.0-72.0	4.5-6.0	23.0-27.0	0.8 max	0.15 max	Active
C94400		Rem	7.0-9.0	9.0-12.0	0.8 max	0.15 max	Active
C94500		Rem	6.0-8.0	16.0-22.0	1.2 max	0.15 max	Active

Nickel-Tin Bronzes (C94600-C94999)

UNS Number	Common Name	Cu %	Sn %	Pb %	Zn %	Fe %	Ni %	Status
C94700*	Cast Nickel-Tin Bronze	85.0-90.0	4.5-6.0	0.09 max	1.0-2.5	0.25 max	4.5-6.0	Active
C94800		84.0-89.0	4.5-6.0	0.30-1.0	1.0-2.5	0.25 max	4.5-6.0	Active
C94900		79.0-81.0	4.0-6.0	4.0-6.0	4.0-6.0	0.30 max	4.0-6.0	Active

Aluminum Bronzes (C95000-C95999)

UNS Number	Cu %	Al %	Fe %	Ni %	Mn %	Status
C95200*	86.0 min	8.5-9.5	2.5-4.0			Active
C95300*	86.0 min	9.0-11.0	0.8-1.5			Active
C95400*	83.0 min	10.0-11.5	3.0-5.0	1.5 max	0.50 max	Active
C95500*	78.0 min	10.0-11.5	3.0-5.0	3.0-5.5	3.5 max	Active
C95600*	88.0 min	6.0-8.0	0.25 max	1.8-3.2		Active
C95700*	71.0 min	7.0-8.5	2.0-4.0	1.5-3.0	11.0-14.0	Active
C95800*	79.0 min	8.5-9.5	3.5-4.5	4.0-5.0	0.8-1.5	Active
C95900*	Rem	12.0-13.5	3.0-5.0	0.50 max	1.5 max	Active

Standard	Grade	Composition	Tensile Strength	Electrical Conductivity
ASTM B62	Cu-Sn8 (85-5-5-5)	85% Cu, 5% Sn, 5% Pb, 5% Zn	275-310 MPa	15% IACS
ASTM B124	Cu-Sn10	90% Cu, 10% Sn	310-380 MPa	12% IACS
BS 2874	PB1	88% Cu, 10% Sn, 2% Zn	290-340 MPa	14% IACS
DIN 17672	CuSn8	92% Cu, 8% Sn	280-320 MPa	15% IACS
JIS H3110	CAC406	88% Cu, 6% Sn, 6% Zn	270-300 MPa	16% IACS
IS 318	Grade 1	87% Cu, 7% Sn, 3% Zn, 3% Pb	285-315 MPa	15% IACS
GB/T 1176	ZCuSn10P1	89% Cu, 10% Sn, 1% P	320-360 MPa	13% IACS

International Compliance Standards

Our Bronze U clamps and grounding products are manufactured in compliance with multiple international standards including IEEE 80 (Guide for Safety in AC Substation Grounding), IEEE 142 (Recommended Practice for Grounding of Industrial and Commercial Power Systems), NEMA CC1 (Electric Power Connection for Substations), IEC 62561 (Lightning Protection System Components), ASTM F1048 (Standard Specification for Bronze Castings for Valves, Flanges, and Fittings), BS 6651 (Code of Practice for Protection of Structures Against Lightning), and IS 3043 (Code of Practice for Earthing). Additional certifications include UL Listed components, CSA certification for Canadian applications, and CE marking for European market compliance.

Manufacturing Processes and Advanced Production Technology

Precision Casting and Forging Operations

Our Bronze grounding products utilize advanced investment casting, sand casting, and precision forging processes to achieve superior dimensional accuracy and material properties. The investment casting process employs ceramic shell molds and controlled atmosphere melting to produce Bronze components with exceptional surface finish and tight dimensional tolerances. High-pressure die casting operations utilize specialized Bronze alloy compositions optimized for electrical applications, incorporating automated pouring systems and real-time temperature monitoring to ensure consistent material properties throughout each production batch.

CNC Machining and Secondary Operations

Secondary machining operations utilize state-of-the-art CNC turning centers, multi-axis machining centers, and precision grinding equipment to achieve final dimensional specifications and surface finish requirements. Thread cutting operations employ specialized tapping systems and thread rolling processes to produce high-strength threaded connections with superior fatigue resistance. Surface preparation includes automated deburring, vibratory finishing, and precision drilling operations to ensure optimal electrical contact surfaces and mechanical assembly characteristics.

Quality Control and Testing Procedures

Comprehensive quality control procedures include incoming material certification, dimensional inspection using coordinate measuring machines (CMM), electrical conductivity testing, tensile strength verification, and corrosion resistance evaluation. Each production lot undergoes statistical process control monitoring, with documented traceability from raw material certification through final product testing and packaging operations.

Typical US Market Sizes and Dimensional Specifications

Standard Bronze U Clamp Dimensions

Model	Conductor Range	Thread Size	Overall Length	Width	Height	Weight
BUC-6	#14-#6 AWG	1/4″-20	2.25″	0.75″	1.50″	0.15 lbs
BUC-4	#6-#4 AWG	5/16″-18	2.75″	1.00″	1.75″	0.25 lbs
BUC-2	#4-#2 AWG	3/8″-16	3.25″	1.25″	2.00″	0.40 lbs
BUC-1/0	#2-1/0 AWG	3/8″-16	3.75″	1.50″	2.25″	0.55 lbs
BUC-4/0	1/0-4/0 AWG	1/2″-13	4.50″	1.75″	2.75″	0.85 lbs
BUC-250	4/0-250 MCM	5/8″-11	5.25″	2.25″	3.25″	1.35 lbs
BUC-500	250-500 MCM	3/4″-10	6.50″	2.75″	4.00″	2.15 lbs

Bronze Ground Rod Clamp Specifications

Model	Rod Diameter	Conductor Range	Clamp Opening	Bolt Size	Material Grade	Finish
BGRC-12	1/2″ (12.7mm)	#6-#2 AWG	0.525″	3/8″-16	ASTM B62	Natural Bronze
BGRC-58	5/8″ (15.9mm)	#4-1/0 AWG	0.650″	3/8″-16	ASTM B62	Natural Bronze
BGRC-34	3/4″ (19.1mm)	#2-4/0 AWG	0.775″	1/2″-13	ASTM B124	Antique Bronze
BGRC-78	7/8″ (22.2mm)	1/0-250 MCM	0.900″	1/2″-13	ASTM B124	Natural Bronze
BGRC-1	1″ (25.4mm)	4/0-500 MCM	1.025″	5/8″-11	ASTM B124	Natural Bronze

Bronze U Bolt Ground Connector Dimensions

Pipe Size Accommodation: 1/4″ to 4″ diameter pipes and conduits Standard Lengths: 2″, 3″, 4″, 6″, 8″, 10″, 12″ U-bolt lengths Thread Specifications: Unified Thread Standard (UTS) with corrosion-resistant coating Load Ratings: 500-3000 lbs working load limit depending on size and configuration Temperature Range: -40°F to +200°F (-40°C to +93°C) continuous operation

Technical Line Drawing and Assembly Configuration

    BRONZE U CLAMP ASSEMBLY -
    
    DIMENSION TABLE:
    Size    | A (Width) | B (Height) | C (Length) | Thread
    #6 AWG  | 0.75"     | 1.50"      | 2.25"      | 1/4"-20
    #4 AWG  | 1.00"     | 1.75"      | 2.75"      | 5/16"-18
    #2 AWG  | 1.25"     | 2.00"      | 3.25"      | 3/8"-16
    1/0 AWG | 1.50"     | 2.25"      | 3.75"      | 3/8"-16
    4/0 AWG | 1.75"     | 2.75"      | 4.50"      | 1/2"-13

Surface Finish and Protective Coatings

Standard Finish Options

Natural Bronze Finish provides excellent corrosion resistance while maintaining optimal electrical conductivity, suitable for most grounding applications including direct burial installations. Antique Bronze Finish incorporates specialized patina treatment for enhanced aesthetic appeal in architectural applications while preserving electrical performance characteristics. Tin Plated Bronze offers superior corrosion protection in marine environments and chemical processing facilities, with electroplated tin coating thickness conforming to ASTM B545 standards.

Specialized Protective Coatings

Nickel Plated Bronze provides enhanced wear resistance and improved electrical contact characteristics for high-current applications and frequent maintenance access points. Chromate Conversion Coating utilizes RoHS-compliant chemical treatment for improved paint adhesion and additional corrosion protection in industrial environments. Polymer Coating Systems include epoxy powder coating and polyurethane protective finishes for extreme environmental conditions and chemical resistance requirements.

Industries and Applications

Power Generation and Distribution

Electric utilities, power generation facilities, and electrical substations utilize Bronze grounding clamps for transformer grounding, switchgear bonding, and protective relay grounding systems. The superior corrosion resistance and electrical conductivity of Bronze components ensure reliable performance in high-voltage applications and outdoor electrical installations exposed to environmental extremes.

Telecommunications and Data Centers

Telecommunications infrastructure, cellular tower installations, and data center facilities depend on Bronze grounding hardware for equipment bonding, cable shield termination, and lightning protection system connections. The non-magnetic properties of Bronze materials prevent interference with sensitive electronic equipment while providing robust mechanical connections for grounding conductors.

Industrial and Manufacturing Facilities

Chemical processing plants, petroleum refineries, and manufacturing facilities require specialized Bronze grounding solutions for hazardous location applications, equipment bonding systems, and static electricity dissipation. Bronze grounding clamps provide essential safety functions while withstanding exposure to corrosive chemicals and extreme operating temperatures.

Construction and Infrastructure

Commercial building construction, bridge infrastructure, and transportation systems incorporate Bronze grounding components for structural steel bonding, rebar grounding systems, and lightning protection installations. The durability and longevity of Bronze materials ensure reliable performance throughout the service life of these critical infrastructure projects.

Manufacturing Tolerances and Quality Standards

Dimensional Tolerances

Linear Dimensions: ±0.005″ (±0.127mm) for machined surfaces, ±0.010″ (±0.254mm) for cast surfaces Angular Tolerances: ±0.5° for all angular features and threaded connections Surface Finish: 32 Ra microinch maximum for electrical contact surfaces, 125 Ra microinch for non-critical surfaces Thread Tolerances: Class 2B internal threads, Class 2A external threads per ASME B1.1 standards Concentricity: 0.005″ TIR maximum for cylindrical features relative to mounting centerlines

Quality Assurance Testing

Material Certification: Chemical composition analysis, mechanical property verification, and electrical conductivity testing for each production lot. Dimensional Inspection: 100% dimensional verification using precision measuring equipment and statistical process control methods. Electrical Testing: Contact resistance measurement, current carrying capacity verification, and dielectric strength testing where applicable. Corrosion Testing: Salt spray testing per ASTM B117, cyclic corrosion testing, and accelerated weathering evaluation for protective coating systems.

Turnaround Time and Production Scheduling

Standard Products: 4-6 weeks delivery time for catalog items with quantities up to 500 pieces, including material procurement, manufacturing operations, quality control testing, and final packaging. Custom Configurations: 6-8 weeks for modified designs requiring engineering review, tooling modifications, or specialized material requirements. Large Volume Orders: 8-10 weeks for quantities exceeding 1000 pieces, with dedicated production scheduling and batch processing optimization. Express Production: 2-3 weeks available for urgent requirements with premium pricing, subject to current production capacity and material availability. Prototype Development: 3-4 weeks for sample quantities of new designs, including engineering analysis, prototype manufacturing, and performance testing validation.

Performance Metrics and Technical Specifications

Electrical Performance Characteristics

Parameter	Specification	Test Standard	Typical Value
Contact Resistance	<0.5 milliohm	ASTM B539	0.2-0.4 milliohm
Current Carrying Capacity	Up to 1200A	IEEE 80	Size dependent
Dielectric Strength	2000V minimum	ASTM D149	>2500V
Temperature Coefficient	<0.004/°C	ASTM B193	0.0035/°C
Galvanic Compatibility	Bronze/Copper systems	ASTM G71	Excellent
Corrosion Rate	<0.1 mil/year	ASTM B117	0.05 mil/year

Mechanical Performance Data

Tensile Strength: 45,000-75,000 PSI depending on Bronze alloy composition and heat treatment Yield Strength: 25,000-50,000 PSI with 0.2% offset measurement criteria Elongation: 15-35% in 2 inches for standard Bronze alloy compositions Hardness: 60-90 HRB Rockwell B scale for typical grounding applications Fatigue Resistance: 10^6 cycles minimum at 50% ultimate tensile strength Impact Resistance: 15-25 ft-lbs Charpy V-notch impact energy at room temperature

Technical Questions and Answers

Q: What Bronze alloy compositions are recommended for direct burial grounding applications? A: For direct burial applications, we recommend ASTM B62 Grade Cu-Sn8 or ASTM B124 Grade Cu-Sn10 Bronze alloys due to their excellent corrosion resistance and mechanical strength. These alloys provide superior performance in soil environments with varying pH levels and moisture content while maintaining optimal electrical conductivity for grounding applications.

Q: Can Bronze grounding clamps be used with Aluminum conductors without galvanic corrosion concerns? A: Bronze grounding clamps should not be used in direct contact with Aluminum conductors due to significant galvanic potential differences. We recommend using bi-metallic transition connectors or applying protective compounds specifically designed for dissimilar metal connections to prevent galvanic corrosion in these applications.

Q: What torque specifications are recommended for Bronze U clamp installation? A: Recommended torque values vary by clamp size and thread pitch: #6-#4 AWG clamps require 8-12 ft-lbs, #2-1/0 AWG clamps require 15-20 ft-lbs, and 4/0-500 MCM clamps require 25-35 ft-lbs. Always use calibrated torque tools and apply thread locking compound for permanent installations.

Q: How do Bronze grounding clamps perform in saltwater marine environments? A: Bronze alloys demonstrate excellent corrosion resistance in marine environments due to their natural patina formation and inherent resistance to chloride attack. For extreme marine applications, we recommend tin-plated or nickel-plated Bronze finishes for enhanced protection against pitting corrosion and biological fouling.

Q: What testing standards apply to Bronze grounding hardware in electrical installations? A: Bronze grounding components must comply with IEEE 80 (Substation Grounding), IEEE 142 (Industrial Power Systems), UL 467 (Grounding and Bonding Equipment), and local electrical codes such as NEC Article 250. Additionally, material specifications must meet ASTM B62 or ASTM B124 requirements for Bronze castings.

Q: Can Bronze grounding clamps accommodate multiple conductors in a single connection point? A: Yes, our Bronze U clamps are designed with sufficient conductor channel space to accommodate multiple parallel conductors within the specified size range. However, each conductor must be properly sized and positioned to ensure uniform current distribution and optimal electrical contact resistance.

Q: What is the expected service life of Bronze grounding hardware in outdoor installations? A: Properly installed Bronze grounding clamps typically provide 25-50 years of reliable service in outdoor environments, depending on local atmospheric conditions, soil chemistry, and maintenance practices. The natural corrosion resistance of Bronze alloys ensures long-term performance with minimal maintenance requirements.

Q: How should Bronze grounding clamps be stored prior to installation to prevent corrosion? A: Bronze components should be stored in dry, well-ventilated areas with relative humidity below 60%. For long-term storage exceeding 12 months, we recommend climate-controlled environments and periodic inspection for surface oxidation. Original packaging materials provide adequate protection for typical storage periods.

Q: Are Bronze grounding clamps compatible with grounding enhancement materials and chemical rods? A: Bronze grounding hardware is fully compatible with bentonite clay, conductive concrete, and chemical grounding rods commonly used for soil resistivity improvement. The Bronze composition will not react adversely with typical soil treatment chemicals or grounding enhancement compounds.

Q: What documentation is provided with Bronze grounding clamp shipments for quality traceability? A: Each shipment includes material test certificates, dimensional inspection reports, lot traceability documentation, installation instructions, and compliance certificates for applicable standards. Custom orders may include additional documentation such as finite element analysis reports and specialized testing data as required.

Q: Can Bronze grounding clamps be modified or customized for specific application requirements? A: Yes, we offer extensive customization capabilities including modified conductor ranges, specialized Bronze alloy compositions, alternative thread specifications, custom mounting configurations, and application-specific protective coatings. Our engineering team works closely with customers to develop optimized solutions for unique grounding requirements.

Q: What quality control measures ensure consistent performance of Bronze grounding products? A: Our quality system includes incoming material inspection, in-process dimensional verification, electrical testing of finished products, statistical process control monitoring, and final inspection before packaging. All operations are performed under ISO 9001:2015 quality management system with full traceability and documentation.

Why Choose Our Bronze Grounding Solutions

Manufacturing Excellence and Global Experience

Our three decades of manufacturing experience in Bronze grounding hardware has established us as a leading supplier to international markets, with deep understanding of diverse application requirements and regional specifications. Advanced manufacturing capabilities utilizing CNC machining centers, automated casting operations, and precision measurement systems ensure consistent product quality and dimensional accuracy exceeding industry standards.

Customization and Engineering Support

Comprehensive customization capabilities allow us to modify standard Bronze grounding clamps for specific application requirements, including specialized Bronze alloy compositions, custom dimensional specifications, and application-specific testing and certification. Our experienced engineering team provides technical support throughout the design, manufacturing, and installation process to ensure optimal performance in each unique application.

Competitive Pricing and Flexible Production

Direct manufacturer pricing eliminates distributor markups while maintaining superior product quality through vertical integration of casting, machining, and finishing operations. Flexible production scheduling accommodates both small prototype quantities and large volume production runs with competitive lead times and reliable delivery performance.

Quality Assurance and Customer Communication

Comprehensive quality control systems include material traceability, dimensional verification, electrical testing, and performance validation for each production lot. Regular communication throughout the manufacturing process provides customers with production status updates, quality documentation, and technical support to ensure successful project completion.

Custom Packaging and Branding Services

Specialized packaging options include custom labeling with customer logos, application-specific installation instructions, and protective packaging designed for international shipping and long-term storage. Private labeling services allow OEM customers to market Bronze grounding products under their own brand names with complete documentation and technical support.

Material Property Reference Tables

Bronze Alloy Chemical Composition

Element	Cu-Sn8	Cu-Sn10	Cu-Si3	Cu-Al10	Test Method
Copper (Cu)	85-88%	88-90%	95-97%	88-92%	ASTM E1019
Tin (Sn)	7-9%	9-11%	–	–	ASTM E1019
Lead (Pb)	3-5%	<0.5%	–	–	ASTM E1019
Zinc (Zn)	3-5%	<1.0%	–	–	ASTM E1019
Silicon (Si)	–	–	2.8-3.8%	<0.5%	ASTM E1019
Aluminum (Al)	–	–	–	9-11%	ASTM E1019
Iron (Fe)	<0.3%	<0.2%	<0.3%	2-4%	ASTM E1019
Nickel (Ni)	<0.5%	<0.5%	<0.5%	<1.5%	ASTM E1019

Physical and Mechanical Properties

Property	Units	Cu-Sn8	Cu-Sn10	Cu-Si3	Cu-Al10
Density	g/cm³	8.8-8.9	8.7-8.8	8.5-8.6	7.6-7.8
Melting Point	°C	950-1000	900-950	1025-1050	1040-1080
Electrical Conductivity	%IACS	15-18	12-15	20-25	12-15
Thermal Conductivity	W/m·K	65-75	55-65	110-130	75-85
Coefficient of Expansion	10⁻⁶/°C	18-19	17-18	17-18	16-17
Elastic Modulus	GPa	90-100	95-105	110-120	110-115

Packaging and International Shipping

Standard Packaging Methods

Individual Bronze grounding clamps are packaged in protective plastic bags with desiccant packets to prevent moisture absorption during shipping and storage. Multiple units are packed in corrugated cardboard boxes with foam inserts to prevent damage during transportation. Large quantities utilize wooden crates with moisture barrier protection for international shipping and long-term storage applications.

Custom Packaging Solutions

Customer Branded Packaging: Custom printed boxes, instruction sheets, and product labels featuring customer logos and specifications. Application-Specific Kits: Pre-assembled component packages including Bronze grounding clamps, mounting hardware, and installation accessories for specific applications. Export Packaging: Specialized packaging for international shipments including fumigation certificates, moisture barrier protection, and compliance with destination country import requirements.

International Shipping and Logistics

Our experienced export team manages all aspects of international shipping including documentation preparation, customs clearance, freight forwarding, and delivery coordination. Standard shipping options include air freight for urgent requirements, ocean freight for cost-effective large volume shipments, and courier services for small packages and samples. All shipments include comprehensive documentation package with commercial invoices, packing lists, certificates of origin, and quality certificates as required by destination country regulations.

International Standards and Certifications

Material Standards Compliance

ASTM Standards: B62 (Bronze Castings), B124 (Copper-Tin Alloys), B584 (Copper Base Alloys), B539 (Measuring Contact Resistance) British Standards: BS 2874 (Copper and Copper Alloys), BS 6651 (Lightning Protection), BS EN 50164 (Lightning Protection Components) European Standards: EN 1412 (Copper and Copper Alloys), EN 62561 (Lightning Protection), EN 50164 (Lightning Protection Components) Indian Standards: IS 318 (Bronze Ingots and Castings), IS 3043 (Earthing Code of Practice), IS 2062 (Structural Steel) Japanese Standards: JIS H3110 (Copper Base Alloy Castings), JIS Z2241 (Metallic Materials Tensile Testing) German Standards: DIN 1705 (Bronze Castings), DIN EN 1412 (Copper Alloys), DIN VDE 0185 (Lightning Protection)

Testing and Certification Services

Comprehensive testing capabilities include chemical analysis, mechanical testing, electrical conductivity measurement, corrosion resistance evaluation, and dimensional inspection using calibrated measurement equipment. Third-party certification services available through accredited laboratories for applications requiring independent verification of material properties and performance characteristics.

Related Terms and Technical Glossary

Grounding System Components

Ground Rod: Driven electrode providing electrical connection to earth for safety and equipment protection. Grounding Conductor: Electrical conductor connecting equipment or systems to grounding electrodes. Bonding Jumper: Conductor ensuring electrical continuity between metallic components. Grounding Electrode Conductor: Main conductor connecting electrical service to grounding electrode system. Equipment Grounding Conductor: Conductor providing electrical connection between equipment and electrical panel.

Bronze Metallurgy Terms

Bronze Alloy: Copper-based metal containing tin, aluminum, silicon, or other alloying elements for enhanced properties. Casting: Manufacturing process forming Bronze components by pouring molten metal into shaped molds. Heat Treatment: Controlled heating and cooling processes to modify material properties and performance characteristics. Patina: Natural protective oxide layer forming on Bronze surfaces exposed to atmospheric conditions. Galvanic Corrosion: Electrochemical reaction between dissimilar metals in presence of electrolyte causing material degradation.

Electrical Connection Terms

Contact Resistance: Electrical resistance at interface between conductor and clamp connection point. Current Carrying Capacity: Maximum electrical current that conductor or connection can safely carry continuously. Fault Current: High magnitude electrical current flowing during short circuit or ground fault conditions. Impedance: Total opposition to alternating current flow including resistance and reactance components. Electrical Continuity: Unbroken electrical path allowing current flow through connected components.

Customer Testimonial

“We have been purchasing Bronze grounding clamps from this Indian manufacturer for over 8 years for our utility infrastructure projects across the Southeast United States. Their consistent quality, competitive pricing, and reliable delivery performance has made them our preferred supplier for Bronze grounding hardware. The technical support provided during our substation upgrade projects was exceptional, and their ability to customize products for our specific requirements saved us significant time and cost. The Bronze U clamps have performed flawlessly in our coastal installations where corrosion resistance is critical. I would highly recommend their products to any electrical contractor or utility requiring dependable grounding solutions.“

– Michael Thompson, Senior Project Manager, , USA

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Call to Action – Contact Our Technical Sales Team

Ready to enhance your grounding system with premium Bronze U clamps and specialized grounding hardware? Our experienced technical sales team is available to provide detailed quotations, engineering support, and customized solutions for your specific applications.

Request a Quote: Email us your requirements at sales@brass-copper-parts. com with conductor specifications, quantity requirements, and delivery schedule for immediate pricing and technical recommendations.

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