Martensitic steel

KLEINOX 4125 – DIN EN X105CrMo17 – AISI 440C – ASTM F899


KLEINOX 4125 (AISI 440C) hardenable martensitic stainless steel with high Cr content, projected to obtain stainless with highest hardness (ca 60 HRc). It is well adapted for production of bearings, cutlery, spherical valves, needle valves, food and aerospace sector.


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

Before hardening

Strenght Uts: ca. 700 – 950 N/mm2 , depends on diameter
Heat treatment: hardening: 1030 – 1070°C anneal: 100 – 200, oil or water cooling
Hardness Max: 60 HRc
Cutting speed: 20 – 30 m/min
Lubrificant-cooling fluid i.e.: INOX or ORTHO Motorex

Print Friendly, PDF & Email
Print Friendly, PDF & Email