P20 (DIN1.2311) Plastic mould steel
hardened&tempering
technology:EAF+LF+VD
1.Desciption:P20 (DIN1.2311) Plastic mould steel
2.Delivery condition: Hot rolling or forging, black surface, pre-harden or tempering to 28~33HRC/30~35HRC
3.Payment term:prepay 30% deposit. the blance against L/C at sight or T/T
4.Trade term:CIF or as according you request
5.technology:EAF+LF+VD
6.Application: used for making various large-sized or medium-sized precise plastic moulds and low melting point alloy parts, like: tin, zinc and lead alloy casting moulds
7.Characteristics:
--Pure steel quality due to vacuum degassing treatment
--The screwing die is formed by forging, and the flat steel and round steel are formed by rolling at a high ratio of deformation. It is compact in structure, suitable for making the plastic molds requiring polish or etch machining.
--Porosity occurs if the thickness of rolled sheet is higher than 120mm.It is not recommended for use to the molds with mirror polishing requirements.
8.Chemical composition:
C | Mn | Si | S | P | Cr | Mo |
0.35 | 0.80 | 0.60 | 0.003 | 0.003 | 1.65 | 0.45 |
9.Compared grades(based on usage):
Chinese | American | German | Swedish | Japanese |
GB | AISI | DIN | ASSAB | JIS |
3Cr2Mo | P20 | 1.2311 | 618 | PDSS |
