冷结构制件。
1, is a kind of mold to the no. P20, alloy steel mold steel.
2. Heat of : the is the steel the and is no for . can only carry out for the 0.1mm, of . : P20 has . When the size of P20 is than if there are a lot of or EDM in the a must be done after or EDM is .
3, used in for large and mold, for of high mold, for large mold the steel has good and .
4. of :
C: 0.28-0.4;
Si: 0.2-0.8;
Mn: 0.6-1.0;
P 0.03 or less.
S 0.03 or less;
Cr: 1.4-2.0;
Mo: 0.3-0.55;
Ni: 0.05-0.10;
5. of P20 and :
of round steel to ≤235HB
6. and scope of :
Die P20 to . for mold and die low point metal mold .The steel has good and .
7. use:
It is for mould and mould frame of TV front water etc.
mold, mold.
blow mould.
Heavy - duty die main parts.
Cold parts.