

We are one of the leading manufacturers and exporters of Bronze Fittings , Bronze Pipe Fittings from India. We offer high quality Bronze castings and fittings like Bronze Threaded elbows, Bronze Plugs, Bronze End caps, Bronze Tees, Bronze 45 degree elbows, Bronze 90 degree elbows etc. We have been supplying Bronze Fittings to the world market for many decades. Based in Jamnagar, Gujarat, our foundry and machine shop produce high‑performance Bronze Cast and Machined Fittings from the 85‑5‑5‑5 Copper Alloy. Our comprehensive range—Elbows, Couplers, Pipe Nipples, End Caps, Tees, Crosses, Thread Converters, and Water Meter Parts—serves sanitary, plumbing, marine, and industrial applications across the USA, Europe, Middle East, and Africa.
Product Overview
Bronze Fittings are corrosion‑resistant connectors and adaptors used to join, branch, or terminate piping systems in water, steam, and oil applications. Manufactured via sand casting or precision CNC machining, our fittings offer superior dimensional accuracy, leak‑proof joints, and long service life—even in harsh environments.
Material & Standards
| Specification | Alloy | Composition (%) | Key Properties |
|---|---|---|---|
| 85-5-5-5 Bronze CDA 836 C83600 Bronze | Cu‑Sn‑Zn‑Pb | Cu 85, Sn 5, Zn 5, Pb 5 | Excellent corrosion resistance, machinability |
| Common Name & Primary Use | U.S. Designation (UNS) | Former CDA # | European Norm (EN) | JIS Standard | ISO Equivalent | Chemical Composition (Key Elements) | Properties & Applications |
|---|---|---|---|---|---|---|---|
| Commercial Bronze (Fittings, Hardware) | C22000 | 220 | CuZn10 (CW501L) | C2200 | CuZn10 | 90% Cu, 10% Zn | Golden color, good ductility and cold-working properties. Actually a brass. |
| Red Brass (85%) (Plumbing, Fittings) | C23000 | 230 | CuZn15 (CW502L) | C2300 | CuZn15 | 85% Cu, 15% Zn | Good corrosion resistance, excellent hot forming properties. |
| Cartridge Brass (70%) (Ammunition, Hardware) | C26000 | 260 | CuZn30 (CW505L) | C2600 | CuZn30 | 70% Cu, 30% Zn | Excellent cold working properties, high ductility. |
| Phosphor Bronze (A) (Electrical Springs, Clips) | C51000 | 510 | CuSn5 (CW450K) | C5111 | CuSn4 | 95% Cu, 5% Sn, 0.2% P | Excellent fatigue resistance, spring properties, and good electrical conductivity. |
| Phosphor Bronze (C) (Springs, Bearings) | C51100 | 511 | CuSn4 (CW451K) | C5111 | CuSn4 | 96% Cu, 4% Sn, 0.2% P | Good strength and corrosion resistance, excellent spring properties. |
| Phosphor Bronze (D) (Heavy Duty Springs, Clamps) | C51900 | 519 | CuSn6 (CW452K) | C5191 | CuSn6 | 94% Cu, 6% Sn, 0.2% P | Higher strength than C51000, excellent wear resistance. |
| Free Machining Phosphor Bronze (Machined Parts) | C54400 | 544 | – | – | – | 88% Cu, 4% Sn, 4% Zn, 4% Pb | Free-machining grade. Good wear resistance, strength, and anti-galling properties. |
| Silicon Bronze (A) (Fasteners, Valve stems) | C65500 | 655 | CuSi3Mn (CW109C) | C6501 | CuSi3Mn1 | 97% Cu, 3% Si, 1% Mn | High strength, excellent corrosion resistance. Good hot and cold workability. |
| Silicon Bronze (B) (Marine Hardware) | C65100 | 651 | CuSi1 (CW110C) | C6511 | CuSi1 | 98.5% Cu, 1.5% Si | Lower silicon content, excellent corrosion resistance in marine environments. |
| Manganese Bronze (Gears, Nuts, Pump Parts) | C67500 | 675 | – | – | – | 59% Cu, 39% Zn, 1.5% Fe, 0.5% Mn, 0.2% Sn | Actually a high-strength brass. Exceptional strength and wear resistance. |
| Leaded Tin Bronze (Bushings, Bearings) | C93200 | 932 | CuSn12-C (CC493K) | BC6 | CuSn10Pb10 | 83% Cu, 7% Sn, 7% Pb, 3% Zn | High-load, low-speed bearing metal. Good machinability and wear resistance. |
| High Lead Tin Bronze (Heavy Duty Bearings) | C93700 | 937 | CuSn7Pb15 (CC494K) | BC1 | CuSn7Pb15 | 78% Cu, 7% Sn, 15% Pb | Excellent bearing properties under heavy loads and low speeds. |
| Tin Bronze (88-8-0-4) (Bearings, Bushings) | C90300 | 903 | CuSn12 (CC480K) | BC2 | CuSn12 | 88% Cu, 8% Sn, 4% Zn | Good strength and wear resistance, medium duty bearings. |
| Gun Metal Bronze (Marine Castings) | C90500 | 905 | CuSn5Zn5Pb2 (CC491K) | BC3 | CuSn5Zn5Pb5 | 88% Cu, 5% Sn, 5% Zn, 2% Pb | Traditional gun metal composition, good castability and machinability. |
| Aluminum Bronze (9%) (High Strength Components) | C95400 | 954 | CuAl10Fe3 (CW306G) | CAC406 | CuAl10Fe3Ni2 | 85% Cu, 11% Al, 4% Fe | General purpose aluminum bronze. Excellent strength, wear, and corrosion resistance. |
| Aluminum Bronze (10%) (Marine Propellers) | C95200 | 952 | CuAl10Fe2 (CW305G) | CAC402 | CuAl10Fe3 | 87% Cu, 10% Al, 3% Fe | High strength and excellent corrosion resistance in seawater. |
| Aluminum Bronze (11%) (Very High Strength Components) | C95500 | 955 | CuAl11Fe6Ni6 (CW307G) | CAC407 | CuAl11Fe6Ni6 | 81% Cu, 11% Al, 4% Fe, 4% Ni | Higher strength and hardness than C95400. Excellent corrosion resistance. |
| Nickel Aluminum Bronze (Marine & Aerospace Components) | C95800 | 958 | CuAl10Ni5Fe4 (CW308G) | CAC703 | CuAl10Ni5Fe4 | 81% Cu, 9% Al, 5% Ni, 4% Fe, 1% Mn | Superior corrosion resistance, especially in seawater. High strength and toughness. |
| Beryllium Copper (High Strength) (Springs, Tools, Explosive Atmospheres) | C17200 | 172 | CuBe2 (CW101C) | C1720 | CuBe2Co | 98% Cu, 2% Be, 0.3% Co | The highest strength copper alloy. Excellent electrical/thermal conductivity. Non-sparking. |
| Beryllium Copper (High Conductivity) (Electrical Contacts) | C17000 | 170 | CuBe1.7 (CW100C) | C1700 | CuBe1.7 | 98.3% Cu, 1.7% Be | Lower strength than C17200 but higher conductivity. |
| Copper-Nickel (90-10) (Marine Condensers) | C70600 | 706 | CuNi10Fe1Mn (CW352H) | C7060 | CuNi10Fe1Mn | 90% Cu, 10% Ni, 1.4% Fe, 1% Mn | Excellent seawater corrosion resistance, good biofouling resistance. |
| Copper-Nickel (70-30) (Marine Heat Exchangers) | C71500 | 715 | CuNi30Mn1Fe (CW354H) | C7150 | CuNi30Mn1Fe | 70% Cu, 30% Ni, 0.5% Fe, 1% Mn | Superior corrosion resistance to C70600, used in harsh marine environments. |
| Tellurium Copper (Free Machining Electrical) | C14500 | 145 | CuTeP (CW118C) | C1450 | CuTeP | 99.5% Cu, 0.5% Te | Free-machining copper with good electrical conductivity. |
| Chromium Copper (Electrical Welding) | C18200 | 182 | CuCr1 (CW105C) | C1820 | CuCr1 | 99% Cu, 1% Cr | High strength and conductivity combination for electrical applications. |
We comply with:
ASTM B62 (Bronze Sand Castings)
BS 1400 CZ121 (Bronze Alloy Castings)
IS 318 LTB2 (Bronze Castings)
Range of Bronze Fittings
| Fitting Type | Connection | Standard Sizes (inches) |
|---|---|---|
| Elbows (45°/90°) | Socket / Threaded | ½″ – 4″ |
| Tees (Equal/Unequal) | Socket / Threaded | ½″ – 3″ |
| Crosses | Threaded | ½″ – 2″ |
| Couplers | Socket / Threaded | ½″ – 4″ |
| Pipe Nipples | Threaded | ½″ × 50 mm – 4″ × 200 mm |
| End Caps / Plugs | Threaded | ½″ – 4″ |
| Thread Converters | M/F BSP / NPT | ½″ – 2″ |
| Water Meter Parts | Custom | As per meter make & model |
Custom dimensions and BSP/NPT thread types available on request.
Manufacturing Process
Pattern & Mold Making: CNC‑cut patterns for sand casting.
Sand Casting: Molten bronze poured into green‑sand molds.
Shakeout & Fettling: Removing sand and flash, rough cleaning.
CNC Machining: Turning, milling, drilling, threading to finalize dimensions.
Deburring & Shot Blasting: Smooth edges and uniform finish.
Final Inspection: Dimensional checks (CMM), pressure/leak testing, visual quality.
Surface Finish Options
| Finish Type | Description |
|---|---|
| Natural (As‑Cast) | Rustic patina, matte texture |
| Sand Cast Texture | Uniform, granular surface |
| Polished Machined | Smooth, shiny finish (optional) |
Applications & Industries
Bronze Fittings find use in:
Sanitary Plumbing – water supply, fittings for fixtures
Marine & Shipbuilding – saltwater piping, seawater pumps
HVAC Systems – chilled water loops, hydronic circuits
Oil & Gas – low‑pressure pipelines, meter connections
Instrumentation – pressure gauge interfaces
Fire Protection – sprinkler and hose connections
Dimensional Tolerances & Performance
| Parameter | Tolerance / Value |
|---|---|
| Linear Dimensions | ± 0.5% of nominal |
| Thread Fit | BSP/NPT Class B |
| Leak Test Pressure | Up to 10 bar (water) |
| Operating Temp Range | –20 °C to +150 °C |
| Corrosion Resistance | Excellent in potable and seawater service |
Lead Time
Standard Stock Sizes: 4–6 weeks
Custom Machined Parts: 6–8 weeks
Expedited Orders: Available upon request
Frequently Asked Questions
What casting method is used?
We employ green‑sand casting for high‑volume parts and resin sand for intricate or low‑volume runs.Can fittings be pre‑assembled with seals?
Yes—PTFE or NBR O‑rings, gaskets, and washers can be fitted.Are your fittings potable‑water safe?
Yes—lead‑free bronze alloys and NSF/ANSI 61 compliance on request.Do you supply complete kits?
We can package fittings, fasteners, and accessories per project requirements.Can we get drawing approvals?
CAD drawings and 3D models provided for customer approval before production.What’s the MOQ?
Prototype runs from 50 pcs; standard MOQ 200 pcs per design.Are custom alloys available?
Yes—tellurium bronze, phosphor bronze, and other Cu‑Sn alloys upon request.Do you provide pressure‑testing certificates?
Yes—all fittings ship with hydrostatic test reports.Is any secondary plating or coating possible?
We offer nickel or tin plating on machined surfaces upon request.Do you ship globally?
Yes—we export via sea, air, and courier with FOB, CIF, or DDP Incoterms.
Why Choose Our Bronze Fittings?
Decades of Expertise in bronze casting and machining
Integrated Foundry & CNC Unit for end‑to‑end control
Global Compliance: ASTM, BS, IS, NSF certifications
Customization: Patterns, alloys, finishes, assemblies
Quality Assurance: SPC/SQC, CMM inspection, leak testing
Reliable Lead Times & Flexible MOQs
Dedicated Support: Engineering, logistics, post‑sales
Packaging & Shipping
Fittings are packaged in corrugated cartons with protective liners, labeled per part number. Heavy or bulk orders palletized and crated. All shipments include packing lists, test certificates, and export documentation.
Customer Testimonial
Carlos Alvarez – Spain
“The precision and finish of these Bronze Fittings elevate our marine plumbing systems. Their hydrostatic test certificates give us full confidence. Excellent partner!”
Glossary of Terms
| Term | Definition |
|---|---|
| Green‑Sand Casting | Traditional sand casting method using clay‑bonded silica sand. |
| Resin Sand | Sand mixed with chemical binders for superior surface finish and detail. |
| Hydrostatic Testing | Pressurizing fittings with water to check for leaks. |
| CMM | Coordinate Measuring Machine—for precise dimensional inspection. |
| NSF/ANSI 61 | Standard for drinking-water system components. |
Ensure durable, leak‑proof piping with our premium Bronze Fittings!
📧 Email: sales@brass-copper-parts.com
📞 Phone/WhatsApp: +91‑22‑43449300
Request a quote, sample, or technical brochure today!






