40CRMNMOS8(1.2312)MOULD STEEL
1.main application:for the production of plastic moulds and casting low melting metal material ,this steel has good machinaability and mirror grinding performance.
2.delivery condition:hot roling or forging,black surface
3.characteristics:plastic mould steel with excellent machinability properties because of the high s content ,goodtoughness properties,good wear resistance ,uniform hardness in all dimensions ,dimensious stablity,requiring no heat treatment,280-325HB hardened and tempered condition ,suitable for nitriding to increase wear resistance,not suitable for chrome plating and polishing.
4.delivery:Acc.to your request——standard steel bar(sawing)
——non-standard steel bar(sawing)
or mill deliver condition ,without sawing or cutting
5.chemical competition for your reference
| C | Si | Mn | P<= | S<= | Cr | Mo |
| 0.35-0.45 | 0.35-0.50 | 1.40-1.60 | 0.030 | 0.05-0.10 | 1.80-2.00 | 0.15-0.25 |
photos for your reference
