Special Steel 718
SPECIAL STEEL 718,P20+Ni \DIN1.2738\GB 4Cr2MoNi
2.Size:
Flat Bar: 100-300×100-620×1600-6000 mm.
Round Bar: 60~400mm dia.
Flat Bar: 100-300×100-620×1600-6000 mm.
Round Bar: 60~400mm dia.
3.Factory state: after hardening and tempering to HB330-370.
4.Chemical composition(for reference only):
|
C
|
Si
|
Cr
|
Ni
|
Mn
|
Mo
|
|
0.38
|
0.3
|
2.0
|
1.0
|
1.4
|
0.2
|
5.Characteristic application:
Because of their high hardness when they were finished, their polishing, wear-resistance, tensile strength and compressive strength are more better. This kind of steel is apply to the mould of high polishing and high demand and the plastic of PA, POM, PS, PE, PP, ABS.