Stainless steel

AISI 420B
1.4028

420B is a martensitic stainless steel for instruments. Its properties allow an optimal hardness and a good corrosion resistance.

Key benefits
  • Corrosion resistance
  • Hardness
Standards
  • ASTM F899
  • EN 10088-3
  • NFS 94-090
Forms available in stock
Diameter
  • 4 mm to 40 mm
Dimensions
  • 3000 mm around

Chemical composition

Reference standard : ASTM F899
C
  • 0,26% min
  • 0,35% max
Si
  • 0% min
  • 1% max
Mn
  • 0% min
  • 1% max
P
  • 0% min
  • 0,04% max
S
  • 0% min
  • 0,03% max
Cr
  • 13% min
  • 14% max
Ni
  • 0% min
  • 1% max
Fe
  • Balance