420 Stainless Steel Strip & Coil
Grade 420 stainless steel is a high-carbon martensitic steel with a minimum chromium content of 12%. This material can be hardened through heat treatment and offers excellent ductility in its annealed state. When polished, surface grounded, or hardened, it provides superior corrosion resistance properties. Grade 420 achieves the highest hardness (up to 50HRC) among all stainless steel grades containing 12% chromium.
Material Specifications
| Grade |
UNS No |
British Standard |
Euronorm |
Swedish SS |
Japanese JIS |
| 420 |
S42000 |
420S37 |
1.4021 |
2303 |
SUS 420J1 |
Available Product Forms
Coil, Sheet, Plate, Strip, Wire, Profile, Round, Flat, Square Tube, Pipes
Technical Specifications
Thickness Range
0.15-3.0 mm
Inner Diameter
610 or 508 mm
Surface Finishes
2B, 2D, BA, No.3, No.4, No.5, SB, HL, No.1 or as required
Alternative Grade Comparison
| Alternative Grade |
Selection Criteria |
| 410 |
When only lower hardened strength is needed |
| 416 |
When high machinability is required with acceptable lower hardened strength and corrosion resistance |
| 440C |
When higher hardened strength or hardness than 420 is needed |
Coil Slitting Capabilities
Our slitting processing combines high-quality equipment with skilled craftsmanship to deliver metal coils with strict tolerances, perfect surface control, and safe packaging.
- Maximum thickness: 18 mm
- Minimum thickness: 0.1 mm
- Maximum width: 2150 mm
- Minimum width: 8 mm
- Width tolerance: 0 - 0.1 mm
- Burr control: T<1mm: ≤0.05mm; T≥1mm: ≤5%T
Applications
- Cutlery and kitchen utensils
- Surgical and dental instruments
- Scissors and cutting tools
- Tapes and measuring tools
- Straight edges and rulers
- Fasteners and hardware components
- Firearms and defense applications
