1.4125 stainless steel
Martensitic stainless steel with extremely high hardening capability (1.4125)
Code | X10CrMo17 |
US standard (AISI) | 440C |
Composition Alloying components [%] | C: 0.95 - 1.20 Cr: 16.00 - 18.00 Mn: 0 - 1.00 Mo: 0.40 - 0.80 P: 0 - 0.04 S: 0 - 0.015 (0.030*) Si: 0 - 1.00 Remainder: Fe |
Stainless steel grade | C3 |
Density [g/cm³] | 7.7 |
Yield point Rp0.2 [N/mm²] | ≥600 |
Tensile strength Rm [N/mm²] | ≤850 |
Corrosion resistance | Medium Resistant to freshwater and water vapour as well as mildly aggressive cleaning agents |
Machinability | Poor |
Weldability | Not suitable |
Other properties | Nickel-free martensitic ferromagnetic structure Special steel with very high resistance to wear Temperable to 61 HRC (Rm: >2000 N/mm²) Can be mechanically polished to a brilliant sheen Suitability for electropolishing: medium |
Main uses | Predominantly used for equipment and parts that are subject to heavy wear stress and require a high level of hardness: Knives Surgical cutting tools Mould inserts and active elements for plastics processing work involving chemically aggressive moulding compounds Shaped and flat knives for processing food and fish Corrosion-protected wear parts |