1.4112 stainless steel
Martensitic stainless steel with high hardening capability (1.4112)
Martensitic stainless steel with high hardening capability (1.4112)
Code | X90CrMoV18 |
US standard (AISI) | 440B |
Composition Alloying components [%] | C: 0.85 - 0.95 Cr: 17.00 - 19.00 Mn: 0 - 1.00 Mo: 0.90 - 1.30 P: 0 - 0.04 S: 0 - 0.015 (0.030*) Si: 0 - 1.00 V: 0.07 - 0.12 Remainder: Fe |
Stainless steel grade | C- |
Density [g/cm³] | 7.7 |
Yield point Rp0.2 [N/mm²] | ≥550 |
Tensile strength Rm [N/mm²] | ≤800 |
Corrosion resistance | - Medium - Resistant to freshwater and water vapour |
Machinability | Poor |
Weldability | Not suitable |
Other properties | - Nickel-free martensitic ferromagnetic structure - Stainless tool steel with high resistance to wear - Temperable to 58 - 60 HRC (Rm: 1800 - 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 - Hardened valve seats |