Stainless Steel Components Manufacturer in Chennai
Precision stainless steel press components, pressure gauge dial housings, and sensor brackets. Space Auto Parts combines heavy-duty power press capacity with specialized tool room engineering to control work-hardening and deliver ±0.1mm accuracy.
Material Data
Stainless steel stamping & mechanical properties
Guaranteed chemical analysis and tensile certification backed by certified Mill Test Reports.
| Material Grades | Austenitic AISI 304 / 304L, AISI 316 / 316L, Ferritic AISI 430 |
| Corrosion Resistance | High resistance to atmospheric corrosion, moisture, mild acids, and industrial solvents |
| Tensile Strength | 515 – 750 MPa (Austenitic grades, annealed condition) |
| Yield Strength | 205 – 310 MPa |
| Thickness Range | 0.3 mm to 3.0 mm sheet and coil stock |
| Forming Characteristics | High elongation with rapid work-hardening requiring optimized tooling clearance |
| Surface Finishing | Tumbling deburring, acid passivation (ASTM A967), belt satin grinding |
| Production Tolerance | ±0.1 mm maintained on critical dimensional features |
Tooling Engineering
Managing stainless steel work-hardening in stamping dies
Stamping stainless steel requires elevated press tonnages and precise clearance calculations to prevent premature tool wear.
1. Controlled Die Clearance (8%–12%)
Too tight a clearance causes intense secondary shearing and rapid punch wear; too loose causes excessive burrs. We calibrate clearances specifically to the austenitic work-hardening exponent.
2. Heavy-Duty Hardened Tool Steel
Our in-house tool room utilizes high-carbon, high-chromium tool steels (D2/AISI D2) heat-treated to 60–62 HRC to withstand the elevated compressive forces required to punch stainless steel.
3. Deburring & Passivation
Rotary tumbling removes sharp burrs to eliminate stress concentration notches, followed by chemical passivation to restore full corrosion resistance on raw sheared edges.
Components
Typical stainless steel components stamped at our Chennai plant
Manufactured for measurement instrumentation, sensors, and harsh automotive environments.
Pressure Gauge Dial Housings
Deep-drawn and pierced stainless steel enclosures holding pressure gauge mechanisms to strict diameter and depth tolerances.
WIKA Instruments PartnerInstrumentation Spacer Cups
Stepped concentric spacer cups stamped from AISI 304 with burr-free bottom surfaces for hermetic sensor sealing.
InstrumentationSensor Mounting Brackets
Rigid formed stainless steel brackets engineered to resist under-chassis road salt, engine heat, and vibration.
AutomotiveFAQ
Stainless steel stamping frequently asked questions
Why is stainless steel harder to stamp than carbon steel, and how does Space Auto Parts handle it?
Stainless steel work-hardens rapidly during blanking and bending, exerting up to 50% higher cutting tonnage on press tools compared to mild steel. We build our progressive dies with high-grade hardened tool steel (such as D2 and high-speed steel punches), maintain wider clearances (8% to 12% per side), and utilize rigid press guiding to prevent tool deflection and premature punch chipping.
Which stainless steel grades do you recommend for instrumentation vs automotive?
For instrumentation (such as pressure gauge housings and dial brackets), AISI 304 is the industrial standard providing superior corrosion resistance and clean aesthetic finish. For marine or corrosive chemical exposure, AISI 316 with 2% molybdenum is preferred. For magnetic sensor components or lower-cost automotive shielding, ferritic AISI 430 offers good formability without nickel cost volatility.
What stainless steel parts does Space Auto Parts manufacture?
We manufacture dial housings, spacer cups, transducer brackets, fluid pressure sensor mounting clips, and hostile-environment automotive brackets. We have been a trusted partner to WIKA Instruments since 2015.
Do you offer chemical passivation for stainless steel stampings?
Yes. Post-stamping deburring and acid passivation remove free iron particles embedded during press tooling contact, restoring the inert chromium oxide passive film per ASTM A967 standards.
Stainless Steel RFQ
Submit your stainless steel drawing for review
Send your 2D PDF drawing with dimensional tolerances and 3D CAD models. Our Chennai engineering team returns pricing within 1–2 business days.