Stainless Steel Machined Parts & Stainless Steel Screw Machine Components
Precision Engineering | Global Quality Standards | Made in India
Overview – Premium Stainless Steel Machined Parts Manufacturing
We are one of the leading manufacturers and exporters of precision Stainless Steel machined parts and components from India. We have been supplying high-quality Stainless Steel parts to the world market for many decades. Our state-of-the-art manufacturing facility specializes in producing custom Stainless Steel machined parts, turned components, and CNC machined parts that meet the most stringent international quality standards. With over three decades of global exposure and experience, we have established ourselves as a trusted partner for industries requiring precision-engineered Stainless Steel components. Our comprehensive manufacturing capabilities encompass everything from simple turned parts to complex multi-axis CNC machined components, utilizing premium grades like 304, 316, 316L, and specialized alloys. We serve diverse industries including automotive, aerospace, medical devices, food processing, petrochemical, and marine applications, delivering components that exceed customer expectations in terms of quality, precision, and reliability. Our commitment to excellence is reflected in our ISO certification, advanced quality control systems, and ability to maintain tight tolerances while ensuring cost-effective production solutions.
Stainless Steel Material Grades & International Standards
Grade | ASTM/AISI | EN/DIN | JIS | IS | BS | Chinese GB | Key Properties |
---|---|---|---|---|---|---|---|
304 | 304/A240 | 1.4301/X5CrNi18-10 | SUS304 | 04Cr18Ni9 | 304S15 | 0Cr18Ni9 | General purpose, excellent corrosion resistance |
316 | 316/A240 | 1.4401/X5CrNiMo17-12-2 | SUS316 | 06Cr17Ni12Mo2 | 316S16 | 0Cr17Ni12Mo2 | Superior corrosion resistance, marine grade |
316L | 316L/A240 | 1.4404/X2CrNiMo17-12-2 | SUS316L | 00Cr17Ni14Mo2 | 316S11 | 00Cr17Ni14Mo2 | Low carbon, excellent weldability |
321 | 321/A240 | 1.4541/X6CrNiTi18-10 | SUS321 | 06Cr18Ni11Ti | 321S12 | 0Cr18Ni10Ti | High temperature applications |
410 | 410/A240 | 1.4006/X12Cr13 | SUS410 | 12Cr13 | 410S21 | 1Cr13 | Martensitic, magnetic, hardenable |
420 | 420/A240 | 1.4021/X20Cr13 | SUS420J2 | 20Cr13 | 420S37 | 2Cr13 | High hardness, wear resistant |
17-4 PH | 17-4 PH/A564 | 1.4542/X5CrNiCuNb16-4 | SUS630 | 05Cr17Ni4Cu4Nb | – | 0Cr17Ni4Cu4Nb | Precipitation hardening, high strength |
904L | 904L/N08904 | 1.4539/X1NiCrMoCu25-20-5 | – | 00Cr20Ni25Mo4.5Cu | 904S13 | 00Cr20Ni25Mo4.5Cu | Super austenitic, chemical processing |
Material Properties & Chemical Composition
Property | 304 | 316 | 316L | 321 | 410 | 17-4 PH |
---|---|---|---|---|---|---|
Density (g/cm³) | 8.0 | 8.0 | 8.0 | 8.0 | 7.7 | 7.8 |
Melting Point (°C) | 1400-1450 | 1375-1400 | 1375-1400 | 1400-1425 | 1480-1530 | 1400-1440 |
Tensile Strength (MPa) | 515-620 | 515-620 | 485-620 | 515-620 | 485-655 | 1170-1310 |
Yield Strength (MPa) | 205-310 | 205-310 | 170-310 | 205-310 | 275-415 | 1070-1200 |
Elongation (%) | 40-70 | 40-70 | 40-70 | 40-70 | 20-35 | 10-16 |
Hardness (HRC) | 92 HRB | 95 HRB | 92 HRB | 95 HRB | 22-32 | 31-47 |
Manufacturing Process Flow
Stainless Steel Machined Parts
Our precision Stainless Steel machined parts are manufactured using advanced CNC machining centers and conventional machines to achieve exceptional accuracy and surface finish. We specialize in producing complex geometries and intricate features that require multi-axis machining capabilities. Our machined parts undergo rigorous quality control processes including dimensional verification, surface roughness measurement, and metallurgical analysis to ensure compliance with customer specifications and international standards. The machining process involves careful selection of cutting tools, optimization of cutting parameters, and implementation of appropriate coolant systems to maintain material integrity and achieve superior surface finishes. We maintain tolerances as tight as ±0.005mm and surface roughness values ranging from Ra 0.1 to Ra 3.2 μm depending on application requirements. Our machined parts find extensive applications in industries such as aerospace, automotive, medical devices, and precision instruments where reliability and performance are critical.
Stainless Steel Turned Parts
Our Stainless Steel turned parts are produced on high-precision CNC turning centers and conventional lathes, offering exceptional roundness, concentricity, and surface finish. The turning process is optimized for different Stainless Steel grades to minimize work hardening and achieve dimensional stability. We utilize carbide and ceramic cutting tools with appropriate geometries and coatings to maximize tool life and maintain consistent quality throughout production runs. Our turned parts include shafts, pins, bushings, sleeves, and custom rotational components with diameters ranging from 0.5mm to 500mm. We maintain strict control over cutting speeds, feed rates, and depth of cut to ensure optimal surface integrity and minimize residual stresses. The turned parts are manufactured with concentricity tolerances as tight as 0.01mm and surface finishes as fine as Ra 0.2 μm. Post-turning operations include deburring, polishing, and specialized surface treatments to meet specific application requirements.
Stainless Steel Screw Machine Parts
Our Stainless Steel screw machine parts are produced using multi-spindle automatic screw machines and CNC Swiss-type machines, enabling high-volume production of small to medium-sized precision components. The screw machining process is particularly suitable for manufacturing fasteners, fittings, connectors, and intricate parts with complex geometries. We utilize specialized tooling and cam-operated mechanisms to achieve consistent quality and dimensional accuracy across large production runs. Our screw machine parts are manufactured with tight tolerances, excellent surface finishes, and optimal mechanical properties. The process involves careful material handling, precise tool setup, and continuous monitoring to ensure consistent quality. We produce threads with various pitch configurations including metric, imperial, and custom thread forms as per customer specifications. The screw machine parts undergo thorough inspection including go/no-go gauging, thread inspection, and dimensional verification to ensure compliance with drawing requirements and international standards.
Stainless Steel 316 Parts
Our Stainless Steel 316 parts are manufactured using the superior corrosion-resistant 316 grade alloy, which contains molybdenum for enhanced resistance to chloride corrosion and marine environments. The 316 grade exhibits excellent mechanical properties, weldability, and formability, making it ideal for critical applications in chemical processing, marine, medical, and food processing industries. We employ specialized machining techniques optimized for 316 grade material to prevent work hardening and maintain its corrosion resistance properties. The manufacturing process includes careful temperature control, appropriate cutting parameters, and proper coolant selection to preserve the material’s microstructure and properties. Our 316 parts are available in various conditions including annealed, cold worked, and solution treated depending on application requirements. We maintain strict quality control measures including chemical composition verification, mechanical property testing, and corrosion resistance validation to ensure optimal performance in demanding service conditions.
Stainless Steel 304 Machined Parts
Our Stainless Steel 304 machined parts represent the most versatile and widely used austenitic Stainless Steel grade, offering excellent corrosion resistance, formability, and weldability. The 304 grade contains 18% chromium and 8% nickel, providing outstanding resistance to oxidation and many corrosive environments. We utilize advanced CNC machining techniques specifically optimized for 304 grade material to achieve superior surface finishes and dimensional accuracy. The machining process involves careful selection of cutting tools, optimization of cutting parameters, and implementation of appropriate workholding systems to minimize distortion and maintain geometric tolerances. Our 304 machined parts are manufactured with surface roughness values ranging from Ra 0.2 to Ra 6.3 μm and dimensional tolerances as tight as ±0.01mm. We offer various surface treatments including passivation, electropolishing, and mechanical polishing to enhance corrosion resistance and appearance. The parts undergo comprehensive quality control including dimensional inspection, surface roughness measurement, and metallurgical analysis to ensure compliance with customer specifications.
CNC Machined Stainless Steel Parts
Our CNC machined Stainless Steel parts are produced using state-of-the-art computer numerical control machines including vertical and horizontal machining centers, turning centers, and multi-axis machining systems. The CNC machining process enables the production of complex geometries, intricate features, and tight tolerances that would be difficult or impossible to achieve with conventional machining methods. We utilize advanced CAD/CAM software for programming and simulation, ensuring optimal tool paths and machining strategies for each component. Our CNC machined parts feature exceptional dimensional accuracy, surface finish, and repeatability across production runs. The process involves careful material selection, precise tool setup, and continuous monitoring to ensure consistent quality and minimize waste. We maintain a comprehensive inventory of cutting tools, fixtures, and workholding devices to accommodate various part geometries and production requirements. Our CNC machined parts are manufactured with geometric tolerances as tight as ±0.005mm and surface finishes as fine as Ra 0.1 μm depending on application requirements.
Manufacturing Processes & Machinery
Process | Machinery | Capabilities | Tolerances | Surface Finish |
---|---|---|---|---|
CNC Machining | Vertical/Horizontal Machining Centers, 5-Axis Machines | Complex geometries, high precision | ±0.005mm | Ra 0.1-3.2 μm |
CNC Turning | CNC Lathes, Swiss-type Machines | Rotational parts, threading | ±0.01mm | Ra 0.2-6.3 μm |
Screw Machining | Multi-spindle Automatics | High volume small parts | ±0.02mm | Ra 0.4-3.2 μm |
Wire EDM | CNC Wire Cut Machines | Complex profiles, tight tolerances | ±0.003mm | Ra 0.2-1.6 μm |
Grinding | Surface/Cylindrical Grinders | Precision finishing | ±0.002mm | Ra 0.05-0.8 μm |
Drilling/Boring | CNC Drilling Machines | Precise hole making | ±0.01mm | Ra 0.8-3.2 μm |
Typical Parts Produced
Our comprehensive manufacturing capabilities enable us to produce a wide range of Stainless Steel precision components including flanges, fittings, valves, pump components, fasteners, shafts, bushings, sleeves, brackets, housings, connectors, pins, springs, washers, gaskets, and custom engineered parts. We specialize in manufacturing components for automotive applications such as exhaust system parts, fuel system components, and engine components. Our aerospace parts include brackets, fittings, fasteners, and structural components that meet stringent quality and traceability requirements. Medical device components include surgical instruments, implantable devices, and diagnostic equipment parts manufactured under controlled conditions. Food processing industry components include sanitary fittings, valves, and processing equipment parts that comply with FDA and 3A sanitary standards. Marine applications include propeller shafts, deck hardware, and corrosion-resistant fasteners designed for harsh marine environments.
Standard Dimensional Capabilities
(Dimensions: L × W × H)
Threading, Counterbores, Radii shown
Dimension | Minimum | Maximum | Tolerance | Standard Sizes |
---|---|---|---|---|
Length | 0.5mm | 2000mm | ±0.005mm | 10, 20, 50, 100, 200, 500mm |
Width | 0.2mm | 1000mm | ±0.005mm | 5, 10, 25, 50, 100, 200mm |
Height | 0.1mm | 500mm | ±0.005mm | 2, 5, 10, 20, 50, 100mm |
Hole Diameter | 0.1mm | 200mm | ±0.005mm | M2, M3, M4, M5, M6, M8, M10, M12 |
Thread Pitch | 0.2mm | 6mm | ±0.02mm | 0.4, 0.5, 0.7, 1.0, 1.25, 1.5, 2.0mm |
Surface Roughness | Ra 0.05μm | Ra 12.5μm | – | Ra 0.1, 0.2, 0.4, 0.8, 1.6, 3.2μm |
Surface Finishes & Treatments
Finish Type | Process | Surface Roughness | Applications | Standards |
---|---|---|---|---|
Mill Finish | As-machined | Ra 0.8-3.2 μm | General industrial | ASTM A480 |
Ground Finish | Precision grinding | Ra 0.05-0.8 μm | Precision instruments | JIS B0601 |
Polished | Mechanical polishing | Ra 0.1-0.4 μm | Decorative, sanitary | ASTM A480 |
Electropolished | Electrochemical | Ra 0.05-0.2 μm | Medical, pharmaceutical | ASTM B912 |
Passivated | Chemical treatment | Ra 0.2-1.6 μm | Corrosion resistance | ASTM A967 |
Bead Blasted | Abrasive blasting | Ra 1.6-6.3 μm | Uniform matte finish | SSPC-AB1 |
Industries & Applications
Our precision Stainless Steel components serve diverse industries where corrosion resistance, strength, and reliability are paramount. The **automotive industry** utilizes our parts for exhaust systems, fuel injection components, and engine parts that withstand high temperatures and corrosive environments. **Aerospace applications** include structural components, fasteners, and engine parts that meet stringent weight and performance requirements. The **medical device industry** relies on our biocompatible Stainless Steel parts for surgical instruments, implants, and diagnostic equipment that require exceptional cleanliness and precision. **Food processing equipment** manufacturers use our sanitary-grade components for pumps, valves, and processing machinery that comply with FDA regulations. **Chemical processing plants** depend on our corrosion-resistant parts for reactors, piping systems, and storage tanks that handle aggressive chemicals. **Marine applications** include propeller shafts, deck hardware, and structural components that resist saltwater corrosion. **Oil and gas industry** applications encompass downhole tools, valves, and pipeline components designed for harsh operating conditions. **Pharmaceutical equipment** requires our high-purity components for drug manufacturing and packaging systems.
Quality Control & Testing
Test Parameter | Method | Equipment | Frequency | Standards |
---|---|---|---|---|
Dimensional Inspection | CMM, Calipers, Micrometers | Zeiss CMM, Mitutoyo | 100% inspection | ISO 9001, AS9100 |
Surface Roughness | Contact/Non-contact | Mitutoyo Surftest | Sample basis | ISO 4287, JIS B0601 |
Chemical Analysis | Spectroscopy | OES, XRF Analyzer | Per lot/batch | ASTM E415, E1086 |
Hardness Testing | Rockwell, Brinell | Hardness Tester | Sample basis | ASTM E18, E10 |
Tensile Testing | Universal Testing | Instron UTM | Per specification | ASTM E8, ISO 6892 |
Corrosion Testing | Salt spray, Immersion | Salt spray chamber | As required | ASTM B117, G48 |
Precision Tolerances & Capabilities
Standard Machining Tolerances: ±0.005mm to ±0.1mm depending on feature size and complexity
Surface Roughness: Ra 0.05μm to Ra 12.5μm with various finishing processes
Geometric Tolerances: Flatness, Roundness, Concentricity: 0.002mm to 0.05mm
Threading Accuracy: Class 2B to Class 3B threads with pitch tolerances ±0.02mm
Feature Type | Standard Tolerance | Precision Tolerance | Ultra-Precision | Typical Applications |
---|---|---|---|---|
External Dimensions | ±0.1mm | ±0.05mm | ±0.005mm | Housings, brackets, frames |
Hole Diameters | ±0.05mm | ±0.02mm | ±0.005mm | Bearings, bushings, pins |
Thread Pitch | ±0.05mm | ±0.02mm | ±0.01mm | Fasteners, connectors |
Flatness | 0.05mm | 0.02mm | 0.002mm | Mating surfaces, seals |
Roundness | 0.02mm | 0.01mm | 0.002mm | Shafts, pistons, bearings |
Surface Finish | Ra 3.2μm | Ra 0.8μm | Ra 0.1μm | Optical, medical devices |
Production Timeline & Turnaround
Our standard production turnaround time is 4-6 weeks from order confirmation to shipment, depending on part complexity, quantity, and material availability. We maintain strategic inventory of commonly used Stainless Steel grades to minimize lead times. **Rush orders** can be accommodated with expedited processing in 2-3 weeks for standard parts with additional charges. **Prototype quantities** (1-10 pieces) are typically completed within 1-2 weeks for evaluation and testing purposes. **Small batch production** (10-100 pieces) requires 2-3 weeks processing time. **Medium volume orders** (100-1000 pieces) are scheduled for 3-4 weeks completion. **Large volume production** (1000+ pieces) follows our standard 4-6 week timeline with possible scheduling adjustments based on capacity. We provide detailed production schedules with milestone updates and maintain constant communication throughout the manufacturing process. Our flexible production planning allows for accommodation of customer-specific delivery requirements and Just-In-Time manufacturing support.
Why Choose Our Stainless Steel Parts?
Three Decades of Global Experience: Over 30 years of expertise in precision Stainless Steel machining with extensive international market exposure across North America, Europe, and Asia-Pacific regions.
Advanced Manufacturing Capabilities: State-of-the-art CNC machining centers, Swiss-type turning machines, and multi-axis equipment enabling complex geometries and tight tolerances.
Superior Customer Communication: Dedicated project managers, technical support teams, and multilingual capabilities ensuring clear communication throughout the project lifecycle.
Customization Flexibility: Ability to accommodate custom specifications, special alloys, unique geometries, and application-specific requirements with engineering support.
Quality Assurance Excellence: ISO 9001:2015 certified facility with comprehensive quality control systems, statistical process control, and full traceability documentation.
Competitive Lead Times: Optimized production planning and inventory management enabling faster delivery compared to traditional suppliers.
Custom Packaging Solutions: Specialized packaging with customer logos, labels, and marking requirements for direct shipment to end customers.
Technical Engineering Support: In-house design review, DFM analysis, and engineering consultation to optimize part designs for manufacturability and cost effectiveness.
Packaging & Shipping
Our comprehensive **packaging and shipping services** ensure safe delivery of Stainless Steel components worldwide. We utilize specialized packaging materials including anti-corrosion papers, desiccants, and protective coatings to prevent oxidation during transit. **Individual part protection** includes plastic bags, foam inserts, and custom-formed packaging for delicate components. **Bulk packaging** options include corrugated boxes, wooden crates, and palletized shipments for large orders. We offer **custom labeling services** with customer logos, part numbers, and specifications printed on packaging materials. **Documentation packages** include certificates of compliance, material test reports, dimensional inspection reports, and packing lists. Our **global shipping network** provides competitive rates and reliable service to destinations worldwide through partnerships with major freight carriers. We maintain **export documentation expertise** including commercial invoices, packing lists, certificates of origin, and customs declarations. **Special handling requirements** such as temperature control, humidity protection, and shock-resistant packaging are available for sensitive components.
Frequently Asked Questions
Customer Testimonial
“We have been sourcing precision Stainless Steel components from this Indian manufacturer for over 8 years, and their quality and reliability have been exceptional. Their engineering team provided excellent support during our product development phase, and they consistently deliver parts that meet our tight aerospace specifications. The communication is outstanding, and they always meet our delivery schedules. Their competitive pricing combined with superior quality makes them our preferred supplier for critical Stainless Steel machined parts.”
– Robert Johnson, Senior Procurement Manager, A****** Components Inc., USA
Glossary of Terms
Term | Definition | Application |
---|---|---|
Austenitic Stainless Steel | Non-magnetic Stainless Steel with face-centered cubic crystal structure | 300 series grades like 304, 316 |
Passivation | Chemical treatment to remove free iron and enhance corrosion resistance | Medical, food processing applications |
Work Hardening | Increase in hardness due to plastic deformation during machining | Affects machinability of austenitic grades |
Intergranular Corrosion | Corrosion along grain boundaries due to carbide precipitation | Prevented by low carbon grades like 316L |
Pitting Resistance | Ability to resist localized corrosion in chloride environments | Enhanced by molybdenum content |
Surface Roughness (Ra) | Arithmetic average of surface profile deviations | Measured in micrometers (μm) |
Geometric Dimensioning & Tolerancing (GD&T) | System for defining and communicating engineering tolerances | Ensures proper fit and function |
Coordinate Measuring Machine (CMM) | Device for measuring physical geometric characteristics | Quality control and inspection |
Swiss-Type Machining | Precision turning process using sliding headstock | Small, complex parts with tight tolerances |
Electropolishing | Electrochemical process for surface finishing | Pharmaceutical, medical applications |
Related Terms
**Stainless Steel precision machining**, **CNC Stainless Steel parts manufacturing**, **304 grade machined components**, **316 marine grade parts**, **medical device Stainless Steel components**, **food grade Stainless Steel parts**, **aerospace Stainless Steel fasteners**, **custom Stainless Steel fabrication**, **precision turned Stainless Steel parts**, **Stainless Steel screw machine products**, **high tolerance Stainless Steel machining**, **Stainless Steel CNC turning services**, **corrosion resistant machined parts**, **Stainless Steel automotive components**, **pharmaceutical grade Stainless Steel parts**, **Stainless Steel valve components**, **precision Stainless Steel fittings**, **custom Stainless Steel brackets**, **Stainless Steel pump components**, **chemical processing Stainless Steel parts**, **Stainless Steel thread rolling**, **electropolished Stainless Steel components**,
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