40 CrMnNiMo 8-6-4
40 CMND 8
≈P20 + Ni
Mould steel for thickness ≤ 600mm (width upon request). Properties as for grade 2311 ISO-BM, but with improved through-hardening. Nitridable, hard chrome plateable, flame hardenable, polishable, grain-reliable as delivered. In an extreme dimensional range, and where there is a requirement for: • Higher hardness and better through-hardenability. • Polishability > 320 grit. • Sensivitive etch-graining designs (e.g. HNO3 ,fine or textile graining). • Higher thermal conductivity. We recommend grade 2738 mod.TS(HH). Quenched and tempered to 280–325 HB ( ͇˄ approx. 950– 1100 MPa)*
Tools for compression and injection moulds, bumpers, dashboards, chairs, rubbish bins, bottle crates, television cabinets, etc.