High-Quality 420 | 420J1 | 420J2 Stainless Steel for Japan, Korea & Taiwan Industries

420 Series Stainless Steel Coil, Sheet & Narrow Strip Supplier

OrinoxSteel professional supply of 420J1 and 420J2 stainless steel materials including coil, precision slit strip and sheet/plates. Suitable for knife manufacturing, industrial blades and precision components in Japan, Korea and Taiwan.

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Fast Export to East Asia
Regular shipments to Japan, South Korea and Taiwan with stable logistics partners and fast documentation processing
Inspection & Certification
Commercial Invoice, Packing List, Certificate of Origin and SGS / third-party inspection available upon request
Flexible MOQ
Trial orders and small quantity orders accepted, suitable for testing new knife steel or strip processing projects

Grade Comparison: 420 / 420J1 / 420J2

GradesУглеродHardness After Heat TreatKey Feature
4200.15 – 0.40%~45–55 HRCBalanced overall, general engineering
420J10.16 – 0.25%~40–50 HRCBetter corrosion & ductility
420J20.26 – 0.40%~50–55 HRC+Higher hardness & wear resistance
Carbon content is the main differentiator—higher carbon gives higher hardness and wear resistance, while lower carbon improves corrosion resistance and workability.

Product Forms & Specifications

Coils

  • Width: 1000 / 1219 / 1240 / 1500 mm or customized
  • Thickness: 0.15 – 3.0 mm
  • Weight per coil: 3 – 10 MT typical

Sheets & Plates

  • Widths: 1000 / 1219 / 1240 / 1500 mm
  • Lengths: 2000 / 2438 / 2500 / 3000 / 3048 mm or customized
  • Thickness: 0.3 – 3.0 mm

Slitted (Narrow Strip) & Processing

  • Precision slitting to narrow widths for blades and tool parts
  • Clean edges, minimal burr and controlled tolerance
  • Recoiled for export — suitable for automation supply
  • Custom slit widths on request

Surface Finishes Available

  • 2B (standard mill finish)
  • BA (bright annealed)
  • No.4 brushed
  • Hairline
  • 8K mirror
  • PVD color coatings
  • Anti-finger print & embossed options

Typical Applications

  • Knife blades & outdoor tools
  • Scissors, shears & industrial cutters
  • Precision components, shafts & springs
  • Automotive Brake Discs
  • Medical instruments & surgical tools
  • Decorative trims & hardware

Export Support

  • FOB / CIF export terms
  • Mill test certificate provided
  • Professional export packing
  • Shipment to Yokohama, Busan, Kaohsiung and other Asian ports