KLEINOX 4197 – DIN EN X20CrNiMoS13-1 – AISI 420F MOD – ASTM F899

USES AND APPLICATIONS

KLEINOX 4197 (AISI 420F MOD) hardenable martensitic stainless steel has an increased S content to enhance its machinability. The Mo and Ni additions provide a hardness increase, as well as a better corrosion resistance. This steel has a good wear resistance. However, its corrosion resistance can only be satisfactory if the parts are hardened, polished and passivated. This steel is well indicated for the production of surgical instruments.

EXECUTIONS

Diameters: 1.00 – 15.00 mm
Tolerances: ISO h8 (up to h5)
Delivery conditions: in cold drawn or ground bars 3m and Coils

MECHANICAL PROPERTIES
Before hardening

Tensile Strength: ca. 750 – 950 N/mm2 , depends on diameter
Heat treatment hardening: 1030 – 1070°C, slow furnace cooling (2-4h) anneal: 700 – 780°C tempering: 100 – 300°C
Hardness Max: 52 HRc
Cutting speed: 40-55 m/min