Stainless Steel Metal Stamping
Custom stainless steel stamped parts in 304, 316, 430, and specialty grades — for medical, food, chemical, and architectural applications.
Get a Free Quote →Stainless Steel Stamping Capabilities
Stainless steel is harder to stamp than carbon steel due to its high work-hardening rate and springback — but when done correctly, it produces parts with outstanding corrosion resistance, strength, and surface quality that last decades without coating.
Our tooling engineers design dies specifically for stainless — with optimized clearances (6–8% per side vs. 4–5% for mild steel), carbide inserts in high-wear zones, and precision blank-holder pressure control to prevent wrinkling without tearing.
Stainless Steel Grades We Stamp
| Grade | Type | Key Properties | Typical Uses |
|---|---|---|---|
| 304 / 304L | Austenitic | Excellent corrosion resistance, good formability | Food equipment, sinks, architectural |
| 316 / 316L | Austenitic | Marine-grade, chloride resistant | Medical implants, marine, chemical |
| 430 | Ferritic | Lower cost, magnetic, good corrosion resistance | Appliances, automotive trim, kitchen |
| 301 | Austenitic | High strength after cold work, spring-like | Springs, clips, fasteners |
| 17-4 PH | Precipitation-hardened | Very high strength, good corrosion | Aerospace, medical, high-stress parts |
Tolerances for Stainless Steel Stamping
- Blanking / punching: ±0.05mm standard; ±0.02mm fine blanking
- Bend angle springback: Compensated by overbending — held to ±0.5°
- Deep draw diameter: ±0.05mm standard; ±0.02mm precision
- Flatness: 0.1mm per 100mm; 0.05mm with coining
Surface Finishes for Stainless Steel Parts
- #2B — mill finish (standard cold-rolled)
- BA (Bright Annealed) — mirror-like, smooth surface
- Brushed / Satin — directional grain, decorative
- Electropolished — ultra-smooth, cleanroom and medical-grade
- Passivated — enhanced corrosion resistance per ASTM A967
- PVD coating — colored stainless (black, gold, bronze)
Applications
Medical Devices
Surgical scissors, clamps, forceps, implant housings, endoscope components in 304L and 316L.
Food & Beverage
Conveyor parts, filling machine components, mixing paddles, storage tank fittings.
Chemical Processing
Pump impellers, valve bodies, heat exchanger fins, filter housings in 316L.
Electronics
EMI shields, connector housings, battery tabs, precision springs in 301 and 304.
Get a Quote for Stainless Steel Stamping
Share your part files and grade requirements. We’ll confirm stampability and return a detailed quote within 24 hours.
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Frequently Asked Questions About Stainless Steel Stamping
Q: What grades of stainless steel do you stamp?
A: We stamp 304 (most common, excellent corrosion resistance and formability), 316/316L (marine and medical grade with superior chloride resistance), 430 (magnetic, cost-effective for non-critical applications), 301 (high strength, good for springs and clips), 410 (hardenable), and 17-4PH (precipitation hardening). Custom grades are available upon request.
Q: Is stainless steel more difficult to stamp than carbon steel?
A: Yes — stainless steel has higher tensile strength, greater work hardening rate, and requires 50–100% more press tonnage compared to equivalent-thickness carbon steel. Our in-house tooling team uses premium tool steels (SKD11, DC53, carbide inserts) and optimized die geometries specifically designed for stainless steel’s forming characteristics.
Q: What surface finishes are available for stainless steel stamped parts?
A: We offer passivation (ASTM A967), electropolishing (mirror finish to Ra 0.2μm), brushed/satin finish (#4 finish), mirror polishing (#8 finish), glass bead blasting, PVD coating (gold, black, rose gold), powder coating, and electroplating (nickel, chrome). Finish selection depends on your application — medical, food contact, architectural, or decorative.
Q: What is the MOQ for stainless steel stamping?
A: Our MOQ for stainless steel stamping starts at 500 pieces for standard production runs. We accommodate smaller volumes for prototyping and low-volume production (50–500 pieces) with adjusted tooling approaches and pricing. Contact us with your specific requirements for a tailored quotation.
Q: Do you offer material certifications for stainless steel?
A: Yes. Every stainless steel coil or sheet lot comes with a mill test report (MTR) certifying chemical composition and mechanical properties per ASTM A240/A480 standards. We also provide in-house PMI (Positive Material Identification) spot testing, RoHS/REACH compliance certificates, and full traceability documentation with every shipment.