Skip to content

CSP Hardened Stainless Steel Plate

40+ years of precision CSP cutting to ±0.01mm in SUS 301/304/316L/430/439, ISO-certified for OEM buyers.

CSP Hardened Material & Stainless Steel Product Range

CSP hardened stainless steel delivers enhanced strength via cold-strengthening for fasteners, springs, and structural parts, in SUS 301/304/316L/430/439 with cutting precision to ±0.01mm.

CSP Stainless Steel — Common Questions

What is CSP hardened stainless steel material?
CSP (Cold-Strengthened Processing) stainless steel is strip or coil that has undergone controlled cold rolling to raise tensile strength and hardness beyond standard mill spec. We supply CSP material in SUS 301, 304, 304L, 316L, 430, 409, and 439, sized to your drawing with cutting tolerance held to ±0.01mm — suited for fasteners, springs, clips, and structural stampings that need consistent hardness batch after batch.
Which grades and tempers are available for CSP hardened stainless?
We stock and process SUS 301, 304, 304L, 316L, 430, 409, and 439 in strip, coil, and sheet form, across hardness/temper levels from soft annealed up to full-hard spring temper. Grade and hardness are matched to your application — e.g. 301 spring temper for automotive clips, 316L for corrosion-critical parts — with mill certificates provided on request.
What tolerance and thickness range can you cut CSP material to?
Precision slitting and cutting holds tolerance to ±0.01mm on strip and coil, with custom widths and lengths cut to your drawing. This level of dimensional control suits high-volume automotive stamping lines where part-to-part consistency affects downstream tooling life and CPK results.
Do you provide surface finishing on CSP stainless steel?
Yes, polishing services are available alongside precision cutting, so CSP strip and coil can be supplied ready for forming without additional finishing steps on your end. This reduces incoming inspection time and keeps your production line running on schedule.
What certifications apply to your CSP stainless steel production?
Our production lines operate under ISO 9001, ISO 14001, ISO/TS 16949, IATF 16949, and ISO 13485 for medical-grade requirements. Automotive and industrial buyers can request material certificates and process documentation aligned with IATF 16949 traceability requirements per shipment.
What lead time and order quantity should we expect?
As a 40-year specialist stainless steel plate supplier operating under 500 tons annual capacity, we run smaller, precision-focused batches rather than mass commodity volumes. Lead times depend on grade, thickness, and cut specification — contact us with your drawing for a firm quotation and delivery schedule.

Need CSP Hardened Stainless Steel Cut to Spec?

Send your drawing or grade/hardness requirement and get a quote from a 40-year stainless steel plate supplier exporting to 50+ countries.