Stainless Steel Turned Parts & Stainless Steel Screw Machine Parts and Components
We are one of the leading manufacturers and exporters of precision Stainless Steel turned parts and Screw Machine components from India. We have been supplying high-quality machined parts to the world market for many decades. Our state-of-the-art manufacturing facility combines traditional craftsmanship with modern CNC technology to deliver exceptional precision components. With over three decades of engineering excellence, we specialize in producing complex geometries and tight tolerance parts for diverse industrial applications. Our comprehensive quality management system ensures consistent product quality while maintaining competitive pricing. We serve clients across North America, Europe, Asia-Pacific, and emerging markets with customized solutions tailored to specific requirements. Our experienced engineering team works closely with customers from design conceptualization through final delivery, ensuring optimal material selection and manufacturing processes. We maintain extensive inventory of various Stainless Steel grades and utilize advanced inspection equipment to guarantee dimensional accuracy and surface finish quality.
Product Categories Overview
Stainless Steel Turned Parts
Our Stainless Steel turned parts represent the pinnacle of precision machining excellence, manufactured using advanced CNC turning centers and conventional lathes. These components undergo rigorous quality control processes including dimensional inspection, surface roughness testing, and material verification. We specialize in producing complex turned geometries with multiple diameters, intricate profiles, and precise threading operations. Our turning capabilities encompass both external and internal machining operations, enabling us to manufacture hollow shafts, bushings, pins, and custom-designed components. The turning process utilizes carbide tooling systems optimized for Stainless Steel machining, ensuring superior surface finish and dimensional stability. We maintain tight tolerances of ±0.0001″ (±0.0025mm) for critical dimensions while achieving surface roughness values as low as Ra 0.4 μm. Our production capacity ranges from prototype quantities to high-volume manufacturing runs, with flexible scheduling to meet urgent delivery requirements.
Stainless Steel Screw Machine Parts
Stainless Steel Screw Machine parts manufactured in our facility utilize high-speed automatic screw machines and multi-spindle turning centers for optimal productivity and consistency. These precision components are ideal for high-volume production requirements where dimensional accuracy and repeatability are paramount. Our screw machine operations are particularly suited for manufacturing small to medium-sized parts with complex geometries including stepped diameters, cross-holes, and intricate threading patterns. We employ advanced cam design and CNC programming techniques to optimize cycle times while maintaining superior quality standards. The screw machine process enables us to achieve excellent concentricity and straightness characteristics essential for rotating assemblies and precision mechanisms. Our quality assurance protocols include statistical process control (SPC) monitoring and automated inspection systems to ensure consistent part-to-part dimensional compliance. We specialize in producing fasteners, fittings, valve components, and custom mechanical elements with delivery schedules optimized for just-in-time manufacturing requirements.
Precision Stainless Steel Turned Parts
Precision Stainless Steel turned parts manufactured in our facility represent the highest level of machining accuracy achievable through advanced CNC technology and meticulous process control. These components require exceptional dimensional stability, superior surface finish, and strict geometric tolerances for critical applications in aerospace, medical, and instrumentation industries. Our precision turning operations utilize state-of-the-art CNC turning centers equipped with live tooling capabilities, enabling complex machining operations in single setups. We employ precision fixturing systems and temperature-controlled machining environments to minimize thermal distortion and ensure consistent dimensional accuracy. The manufacturing process incorporates advanced metrology systems including coordinate measuring machines (CMM), optical comparators, and laser interferometry for comprehensive quality verification. Our precision turned parts typically achieve tolerances of ±0.00005″ (±0.0013mm) with surface roughness values as low as Ra 0.2 μm, meeting the most demanding engineering specifications for high-performance applications.
Swiss Turned Parts of Stainless Steel
Swiss turned parts of Stainless Steel produced using precision Swiss-type automatic lathes offer unparalleled accuracy and surface finish quality for complex small-diameter components. Our Swiss turning capabilities are specifically optimized for manufacturing long, slender parts with high length-to-diameter ratios while maintaining exceptional straightness and concentricity. The Swiss turning process utilizes guide bushings and advanced tooling systems to provide superior workpiece support, enabling machining of complex geometries with minimal deflection. We specialize in producing medical device components, precision shafts, and intricate mechanical parts requiring multiple machining operations in single setups. Our Swiss turning centers feature simultaneous multi-axis machining capabilities, incorporating milling, drilling, and threading operations while the part remains securely supported. The manufacturing process ensures optimal material utilization with minimal waste generation, making it ideal for expensive Stainless Steel grades. We maintain strict quality protocols including real-time dimensional monitoring and automated rejection systems to guarantee consistent part quality throughout production runs.
Stainless Steel 316 Turned Parts
Stainless Steel 316 turned parts manufactured in our facility utilize the superior corrosion resistance and mechanical properties of austenitic Stainless Steel for demanding marine, chemical, and food processing applications. Grade 316 Stainless Steel contains molybdenum additions that significantly enhance resistance to pitting and crevice corrosion in chloride environments. Our turning operations for 316 Stainless Steel employ specialized tooling geometries and cutting parameters optimized for the material’s work-hardening characteristics and thermal conductivity properties. We maintain comprehensive material traceability documentation including mill test certificates and chemical composition verification for critical applications. The manufacturing process incorporates proper work hardening control to optimize mechanical properties while achieving required dimensional accuracy. Our 316 turned parts undergo specialized cleaning and passivation treatments to maximize corrosion resistance and ensure compliance with industry standards including ASTM A276, ASTM A479, and FDA regulations for food contact applications. We provide comprehensive material property documentation including tensile strength, yield strength, and corrosion resistance data for engineering evaluation and approval processes.
Stainless Steel 304 Turned Components
Stainless Steel 304 turned components represent our most versatile product category, manufactured from the most widely used austenitic Stainless Steel grade offering excellent formability, weldability, and corrosion resistance properties. Grade 304 Stainless Steel provides optimal machinability characteristics while maintaining superior mechanical properties suitable for diverse industrial applications. Our turning operations utilize advanced cutting tool technologies specifically designed for 304 Stainless Steel’s machining characteristics, including controlled chip formation and heat dissipation. We maintain extensive inventory of 304 Stainless Steel raw materials in various forms including round bars, hexagonal bars, and square bars to support diverse component geometries. The manufacturing process incorporates optimized cutting parameters and coolant systems to prevent work hardening while achieving superior surface finish quality. Our 304 turned components undergo comprehensive quality inspection including dimensional verification, surface finish measurement, and material property testing. We provide complete material traceability documentation and certification compliance with standards including ASTM A276, ASTM A582, and various international specifications for global market acceptance.’
Material Grades & International Standards
Austenitic Grades
USA/ASTM: 304, 304L, 316, 316L, 321, 347
European (EN): 1.4301, 1.4307, 1.4401, 1.4404
Japanese (JIS): SUS304, SUS316, SUS321
Chinese (GB): 0Cr18Ni9, 00Cr19Ni10
Ferritic Grades
USA/ASTM: 409, 430, 434, 444
European (EN): 1.4512, 1.4016, 1.4113
Indian (IS): 04Cr11, 06Cr13
DIN: X6Cr17, X6CrMo17-1
Martensitic Grades
USA/ASTM: 410, 416, 420, 440C
European (EN): 1.4006, 1.4005, 1.4021
Japanese (JIS): SUS410, SUS420J2
British (BS): 410S21, 420S45
Material Properties Comparison
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) | Corrosion Resistance |
|---|---|---|---|---|---|
| 304 | 515-620 | 205-310 | 40-60 | 201 max | Excellent |
| 316 | 515-620 | 205-310 | 40-60 | 217 max | Superior |
| 410 | 485-620 | 275-380 | 20-25 | 302 max | Moderate |
| 430 | 450-550 | 280-340 | 22-30 | 183 max | Good |
Manufacturing Process Flow
Material Receipt
Inspection & Certification
CNC Programming
Setup & Tool Selection
Precision Machining
Turning & Finishing
Quality Control
Inspection & Testing
Packaging & Shipping
Custom Labeling
Manufacturing Capabilities & Machinery
| Machine Type | Specifications | Capacity | Typical Parts |
|---|---|---|---|
| CNC Turning Centers | Haas ST-30, DMG Mori NLX | Ø6-300mm, Length 1000mm | Shafts, Bushings, Flanges |
| Swiss Type Automatics | Citizen Cincom L20, Star SR-20J | Ø3-32mm, Length 300mm | Medical Components, Pins |
| Multi-Spindle Automatics | Davenport B-Machine, Acme-Gridley | Ø6-76mm, High Volume | Fasteners, Fittings |
| CNC Lathes | Okuma LB-3000, Mazak Quick Turn | Ø10-400mm, Length 1500mm | Large Diameter Parts |
Precision Tolerances & Quality Standards
Dimensional Tolerances
| Feature Type | Standard Tolerance | Precision Tolerance | Ultra-Precision |
|---|---|---|---|
| External Diameters | ±0.002″ (±0.05mm) | ±0.0005″ (±0.013mm) | ±0.0001″ (±0.0025mm) |
| Internal Diameters | ±0.003″ (±0.08mm) | ±0.001″ (±0.025mm) | ±0.0002″ (±0.005mm) |
| Length Dimensions | ±0.005″ (±0.13mm) | ±0.002″ (±0.05mm) | ±0.0005″ (±0.013mm) |
| Thread Pitch | Class 2A/2B | Class 3A/3B | Custom Precision |
Surface Finish Specifications
| Finish Type | Ra Value (μm) | Ra Value (μin) | Application |
|---|---|---|---|
| Standard Machined | 1.6 – 3.2 | 63 – 125 | General Purpose |
| Fine Machined | 0.8 – 1.6 | 32 – 63 | Precision Components |
| Precision Ground | 0.4 – 0.8 | 16 – 32 | Critical Surfaces |
| Super Finished | 0.1 – 0.4 | 4 – 16 | Ultra-Precision |
Industries Served
Aerospace & Defense
Critical flight components, landing gear parts, engine components meeting AS9100 standards
Medical & Pharmaceutical
Surgical instruments, implant components, diagnostic equipment parts with FDA compliance
Automotive
Engine components, transmission parts, fuel system components meeting TS16949 standards
Food & Beverage
Processing equipment parts, valve components, pump parts with 3A dairy standards
Oil & Gas
Downhole tools, valve components, pipeline fittings meeting API specifications
Electronics
Connector components, heat sink parts, precision housings for electronic assemblies
Comprehensive Q&A Section
Q: What is the typical turnaround time for Stainless Steel turned parts?
A: Our standard turnaround time is 4-6 weeks for production orders, with expedited service available for urgent requirements. Prototype and small quantity orders can often be completed within 1-2 weeks depending on complexity and current production schedule.
Q: Can you manufacture parts according to customer drawings and specifications?
A: Absolutely. We specialize in custom manufacturing according to customer drawings, 3D models, or samples. Our engineering team can also assist with design optimization for manufacturability and cost reduction while maintaining required performance characteristics.
Q: What quality certifications do you maintain for aerospace applications?
A: We maintain AS9100D certification for aerospace quality management systems, along with NADCAP accreditation for special processes. We also comply with DFAR requirements and provide comprehensive material traceability documentation.
Q: Do you provide material certificates and test reports?
A: Yes, we provide complete mill test certificates (MTC) for all materials, including chemical composition, mechanical properties, and heat treatment details. Additional testing such as PMI verification, hardness testing, and dimensional reports are available upon request.
Q: What is the minimum order quantity for precision turned parts?
A: We accommodate orders from single prototype pieces to high-volume production runs. There is no strict minimum order quantity, though setup costs may affect unit pricing for very small quantities. We work with customers to optimize order quantities for best value.
Q: Can you handle tight geometric tolerances and surface finish requirements?
A: Yes, our precision machining capabilities include tolerances as tight as ±0.0001″ (±0.0025mm) and surface finishes as fine as Ra 0.1 μm. We utilize advanced CNC equipment, precision measuring instruments, and controlled environment machining for critical applications.
Q: Do you offer secondary operations like heat treatment and plating?
A: We provide comprehensive secondary operations including heat treatment, passivation, electropolishing, and various coating applications through our certified partner network. This ensures single-source responsibility and streamlined quality control.
Q: What inspection and testing capabilities do you have?
A: Our quality laboratory includes coordinate measuring machines (CMM), optical comparators, surface roughness testers, hardness testing equipment, and positive material identification (PMI) analyzers. We provide comprehensive inspection reports with all shipments.
Q: Can you manufacture parts with multiple materials in single assemblies?
A: Yes, we can manufacture assemblies incorporating different Stainless Steel grades or combinations with other materials. Our engineering team ensures proper material compatibility and galvanic corrosion prevention through appropriate design and assembly techniques.
Q: Do you provide packaging and shipping solutions for international customers?
A: We offer comprehensive packaging solutions including custom labeling, protective packaging for precision parts, and specialized shipping arrangements. Our logistics team handles all export documentation, customs clearance, and tracking services for international shipments.
Customer Testimonial
“We have been working with this Indian manufacturing partner for over 8 years, and their quality and service continue to exceed our expectations. Their precision Stainless Steel turned parts consistently meet our stringent aerospace specifications, and their delivery reliability has enabled us to optimize our inventory management. The engineering support they provide during design phases has been invaluable, often suggesting improvements that reduce costs while enhancing functionality. Their communication is excellent, and they truly understand the importance of quality and on-time delivery in our industry.”
– Robert K. Martinez, Senior Procurement Manager, USA
Stainless Steel Turned Parts by Industry
Aerospace & Defense
- Stainless Steel Precision Shafts – Landing gear components, control system shafts
- Stainless Steel Fasteners – Custom bolts, screws, and rivets
- Valve Stems – Fuel system and hydraulic valve components
- Stainless Steel Bushings – Control surface pivot bushings
- Stainless Steel Spacers – Structural spacing components
- Stainless Steel Pins – Hinge pins, clevis pins, and locking pins
- Nozzles – Fuel injection and cooling system nozzles
- Stainless Steel Fittings – Hydraulic and pneumatic system fittings
Medical & Pharmaceutical
- Surgical Instruments – Handles, shafts, and precision components
- Implant Components – Joint replacement parts, bone screws
- Valve Components – Heart valve parts, catheter components
- Syringe Parts – Plungers, needles, and luer fittings
- Dental Tools – Drill bits, handles, and adjustment screws
- Laboratory Equipment – Sample holders, test tube fittings
- Sterilization Equipment – Autoclave components and fittings
- Prosthetic Parts – Joint mechanisms and adjustment components
Food & Beverage Processing
- Stainless Steel Valve Stems – Process control and shutoff valves
- Stainless Steel Pump Shafts – Sanitary pump components
- Mixing Elements – Agitator shafts and impeller components
- Stainless Steel Fittings – Sanitary pipe fittings and couplings
- Nozzles – Spray and dispensing nozzles
- Filter Components – Housing parts and support elements
- Conveyor Parts – Roller shafts and guide components
- Packaging Machine Parts – Filling heads and sealing components
Chemical Processing
- Reactor Components – Agitator shafts, baffles
- Corrosion-Resistant Fittings – Pipe connections and adapters
- Pump Components – Impeller shafts, wear rings
- Heat Exchanger Parts – Tube sheets, baffles
- Valve Internals – Seats, stems, and trim components
- Instrumentation Parts – Sensor housings, thermowells
- Gasket Surfaces – Flanged connections and sealing surfaces
- Mixing Components – Blade attachments and drive shafts
Marine & Offshore
- Propeller Shafts – Main drive and auxiliary shafts
- Deck Hardware – Winch components, cleat fittings
- Valve Components – Seawater system valves
- Fasteners – Corrosion-resistant bolts and studs
- Stainless Steel Pump Parts – Bilge and cooling system components
- Navigation Equipment – Antenna mounts, compass parts
- Safety Equipment – Life raft components, emergency fittings
- Hull Fittings – Through-hull connections, sea cocks
Oil & Gas
- Downhole Stainless Steel Components – Valve parts, tool joints
- Pipeline Fittings – Pressure-rated connections
- Pump Components – High-pressure pump parts
- Instrumentation – Gauge components, sensor fittings
- Safety Systems – Blowout preventer parts
- Compressor Parts – Valve components, sealing elements
- Wellhead Equipment – Christmas tree components
- Processing Equipment – Separator internals, heat exchanger parts
Automotive
- Stainless Steel Fuel System Components – Injector parts, fuel rail fittings
- Exhaust System Parts – Catalytic converter components
- Brake System Components – ABS sensor parts, brake line fittings
- Engine Components – Valve guides, timing components
- Suspension Parts – Shock absorber components
- Transmission Parts – Gear components, valve bodies
- Electrical Components – Sensor housings, connector parts
- Cooling System Parts – Thermostat components, radiator fittings
Electronics & Telecommunications
- Connector Components – Pin contacts, housing parts
- Heat Sink Components – Threaded inserts, mounting hardware
- Antenna Parts – Feed components, mounting brackets
- Switch Components – Actuator shafts, contact springs
- Semiconductor Equipment – Process chamber components
- Cable Hardware – Strain reliefs, connector shells
- Circuit Board Hardware – Standoffs, mounting posts
- Test Equipment Parts – Probe components, fixture hardware
Power Generation
- Turbine Components – Blade attachments, shaft components
- Generator Parts – Rotor components, cooling system parts
- Steam System Components – Valve internals, pipe fittings
- Control System Parts – Actuator components, linkages
- Cooling System Components – Heat exchanger parts, pump components
- Instrumentation – Temperature sensor wells, pressure fittings
- Safety Systems – Relief valve components, emergency fittings
- Electrical Components – Insulator hardware, grounding components
Pharmaceutical Manufacturing
- Process Equipment – Mixing vessel components, agitator shafts
- Transfer Systems – Pump components, valve internals
- Filling Equipment – Dispensing heads, metering components
- Cleaning Systems – Spray nozzles, circulation components
- Quality Control Equipment – Sample valves, testing fixtures
- Packaging Equipment – Capping mechanisms, sealing components
- Sterilization Equipment – Autoclave fittings, steam components
- Storage Systems – Tank fittings, level measurement components
Common Specifications & Materials
Typical Stainless Steel Grades
- 304/304L – General purpose, good corrosion resistance
- 316/316L – Enhanced corrosion resistance, marine applications
- 321 – High temperature applications
- 17-4 PH – High strength, precipitation hardening
- 15-5 PH – Excellent mechanical properties
- Duplex 2205 – High strength and corrosion resistance
Standard Tolerances
- Diameter: ±0.0005″ to ±0.002″
- Length: ±0.005″ to ±0.030″
- Surface Finish: 16-125 µin Ra
- Concentricity: 0.0005″ to 0.002″ TIR
- Roundness: 0.0002″ to 0.001″
Common Secondary Operations
- Passivation treatment
- Electropolishing
- Heat treatment
- Threading (internal/external)
- Knurling
- Grinding
- Drilling and tapping
- Assembly services
Why Choose Our Stainless Steel Turned Parts?
Competitive Advantages
Three Decades of Global Experience: Our extensive experience serving international markets provides deep understanding of diverse quality standards, regulatory requirements, and customer expectations across different industries and geographic regions.
Advanced Manufacturing Technology: Our facility features state-of-the-art CNC machining centers, Swiss turning equipment, and precision measurement systems enabling us to achieve the highest levels of accuracy and consistency for critical applications.
Flexible Production Capabilities: We offer unmatched flexibility in production scheduling, accommodating rush orders, prototype development, and varying volume requirements while maintaining consistent quality standards throughout all production phases.
Comprehensive Quality Management: Our integrated quality management system encompasses incoming material inspection, in-process monitoring, final inspection, and comprehensive documentation ensuring complete traceability and compliance with international standards.
Customer-Centric Approach: Our dedicated customer service team provides exceptional communication, technical support, and project management ensuring seamless collaboration from initial inquiry through final delivery and ongoing support.
Customized Packaging Solutions: We provide specialized packaging services including custom labeling with customer logos, protective packaging for precision components, and tailored shipping solutions optimized for specific handling and storage requirements.
Packaging & Shipping
Our comprehensive packaging and shipping services ensure safe delivery of precision Stainless Steel components worldwide. We utilize protective packaging materials specifically designed for precision machined parts, including foam inserts, anti-static materials, and corrosion inhibitors for long-term storage. Custom labeling services include customer logos, part numbers, and special handling instructions according to specific requirements. Our logistics team manages all aspects of international shipping including export documentation, customs clearance, and real-time shipment tracking. We work with major international carriers including FedEx, UPS, DHL, and specialized freight forwarders for large shipments. Standard packaging includes moisture barrier protection, identification labels, and inspection certificates. Express shipping options are available for urgent requirements with guaranteed delivery schedules.
International Standards Compliance
| Standard | Description | Application |
|---|---|---|
| ASTM A276 | Standard Specification for Stainless Steel Bars and Shapes | Material Properties |
| ASTM A479 | Standard Specification for Stainless Steel Bars for Boiler Applications | High Temperature Service |
| DIN EN 10088 | European Standard for Stainless Steels | European Markets |
| JIS G4303 | Japanese Industrial Standard for Stainless Steel Bars | Asian Markets |
| IS 6911 | Indian Standard for Stainless Steel Bars | Domestic Applications |
| AS 9100D | Aerospace Quality Management System | Aerospace Components |
Dimensional Capabilities Chart
| Machine Type | Min Diameter | Max Diameter | Max Length | Tolerance |
|---|---|---|---|---|
| Swiss Turning | 0.5mm (0.020″) | 32mm (1.260″) | 300mm (11.8″) | ±0.005mm (±0.0002″) |
| CNC Turning | 6mm (0.236″) | 300mm (11.8″) | 1000mm (39.4″) | ±0.013mm (±0.0005″) |
| Multi-Spindle | 6mm (0.236″) | 76mm (3.0″) | 200mm (7.9″) | ±0.025mm (±0.001″) |
| Large Turning | 25mm (1.0″) | 400mm (15.7″) | 1500mm (59.1″) | ±0.050mm (±0.002″) |
Glossary of Technical Terms
Austenitic Stainless Steel: Non-magnetic Stainless Steel with face-centered cubic crystal structure, excellent corrosion resistance and formability
Passivation: Chemical treatment process that removes free iron and enhances natural oxide layer formation for improved corrosion resistance
Work Hardening: Increase in material hardness and strength due to plastic deformation during machining operations
Pitting Corrosion: Localized corrosion mechanism causing small holes or pits in metal surfaces, particularly in chloride environments
Intergranular Corrosion: Corrosion occurring along grain boundaries in Stainless Steel, typically caused by carbide precipitation
Swiss Turning: Precision machining process using guide bushings for superior accuracy on long, slender parts
Screw Machine: Automatic lathe designed for high-volume production of small to medium-sized turned parts
Related Terms
precision machined components, custom Stainless Steel parts, CNC turning services, Swiss machining capabilities, screw machine products, medical device components, aerospace parts manufacturing, food grade Stainless Steel components
Get Your Custom Quote Today!
Ready to experience precision manufacturing excellence? Contact us now for competitive pricing and fast turnaround times.
📧 Email: sales@brass-copper-parts. com | 📱 WhatsApp: +91-22-43449300
📞 Phone: +91-22-43449300| 🌐 Request Brochure: sales@brass-copper-parts. com
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