|
STEEL GRADE/TYPE
|
GB
|
4Cr2MnMo
|
|
JIS
|
|
|
ASTM
|
~P20
|
|
DIN
|
1.2311
|
|
Other Comp.
|
|
|
Chemical composition %
|
C
|
0.40
|
|
W
|
－
|
|
Mo
|
0.20
|
|
Cr
|
1.90
|
|
V
|
－
|
|
Co
|
－
|
|
Ni
|
－
|
|
Mn
|
1.50
|
|
Si
|
0.40
|
|
P≤
|
0.030
|
|
S≤
|
0.030
|
|
Application
|
ASTM ~P20/DIN 1.2311/4Cr2MnMo Plastic mould steel used for cold pressing mold extrusion with low pressing and burden, imprint mold, cold cutting scissor. For pre-hardened pouring plastic mold,good polish with corrosion-resisting.
|
|
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