Description
SUS304-CSP (EN 1.4301 / AISI 304 / X5CrNi18-10) is YONGJIN’s precision cold-rolled stainless steel spring strip, engineered for corrosion-resistant springs, stamping parts and elastic components across kitchenware, architecture, electronics and medical applications.
How Foshan Yongjin Delivers Speed and Reliability
- ✔️ Monthly ready stock: 4,000-7,000 MT; CSP capacity: 15,000-20,000 MT
- ✔️ 72 hours dispatch from contract to loaded container
- ✔️ Fast export documentation + Form E certificate provided
- ✔️ Precision CSP coils ready for kitchenware, architecture, electronics, springs & medical
Massive Ready Stock. Rapid Export Delivery.
📦 CURRENT READY STOCK
- SUS304-CSP: 0.1-1.5mm (1/2H, 3/4H, FH)
- SUS301-CSP: 0.1-1.5mm (1/2H, 3/4H, FH, EH)
- SUS430 HARD | SUS316L HARD
Technical Specifications
Complies with JIS G4313, EN 10151, ASTM A666, ISO 6931-2 and DIN EN ISO 9445-P. Tolerances per DIN EN ISO 9445-P, closer tolerances on request.
Thickness
0.05 to 1.5mm
Ready stock 0.1 to 1.5mm
Width
300 to 1220mm
Hardness
ANN to H
Full CSP hardness spectrum
Surface
Precision Finished
Ra 0.25 to 0.40 μm
Finish
2D / 2DD
Cold rolled bright finish
Supply Form
Original Export Coils
Coil weight 2 to 3 MT
Chemical Composition (%)
| Element | C | Si | Mn | P | S | Cr | Ni |
|---|---|---|---|---|---|---|---|
| SUS304-CSP (EN 1.4301) | ≤0.08 | ≤0.75 | ≤2.00 | ≤0.045 | ≤0.030 | 18.00-20.00 | 8.00-11.00 |
Mechanical Properties by Hardness Grade
| Condition | Tensile (MPa) | Yield (MPa) | Elongation (%) | HV |
|---|---|---|---|---|
| ANN | ≥520 | ≥205 | ≥40 | ≤200 |
| 1/2H | ≥780 | ≥470 | ≥6 | ≥250 |
| 3/4H | ≥930 | ≥670 | ≥3 | ≥310 |
| H (Full Hard) | ≥1130 | ≥880 | – | ≥370 |
In-House Precision Manufacturing
Typical Applications of SUS304-CSP
Thanks to its superior corrosion resistance and excellent formability, SUS304-CSP is the preferred spring material for engineers who need reliable elasticity combined with hygienic, non-reactive surfaces.
Kitchen & Food
Cookware springs, sink hardware, food-processing strips and sanitary brewing components
Architecture
Decorative hardware, trims, elevator panels and corrosion-resistant fasteners
Medical
Instrument components and sterilization-ready stamped parts
Electronics
Connectors, dome switches, watch components and battery hardware
Quick Hardness Selection Guide
| Condition | Best For |
|---|---|
| ANN | Deep drawing, kitchenware and maximum formability |
| 1/2H | General springs and clips with moderate strength |
| 3/4H | Structural stamping with higher yield demand |
| H (Full Hard) | High-stress flat springs and contact blades |
Why Global Buyers Source SUS304-CSP from YONGJIN
- ✔️ Subsidiary of YONGJIN GROUP (SSE: 603995) with 10 production bases and stable monthly capacity
- ✔️ Proprietary 20-high reversible rolling mill delivering ±0.001mm thickness tolerance
- ✔️ RCS 2.0 & SCS ready: certified green production with minimum 90% post-consumer recycled content
- ✔️ Mix-size loading, fast documentation and Form E certificate for ASEAN markets
Export Packaging & Quality Documentation
Every SUS304-CSP coil is packed with maritime moisture-proof wrapping, anti-corrosion paper, steel strapping and wire bracing on reinforced pallets, loaded eye-to-sky or eye-horizontal according to vessel requirements. Our technical team provides free sample coils and stamping guidance before mass production, so your SUS304-CSP parts reach stable performance from the first batch.
- ✔️ EN 10204 3.1 mill test certificate with chemistry and hardness results
- ✔️ SGS / BV third-party inspection accepted
- ✔️ Hardness and tolerance verification reports on request
Compliance & Export Delivery
📄 Read Full Technical & Certification Breakdown (Blog)
Need a Quotation for SUS304-CSP?
📩 morgan@yongjinss.com | WhatsApp / Zalo +86 177 2277 5646
* Reference prices shown in search results are subject to daily LME nickel market fluctuations.
