Standart
AISI, ASTM, BS, DIN, GB, JIS
Alaşım ya da değil
Alaşım
Uygulama
Alaşım çelik bar
Özel kullanım
Kalıp çelik
Grade
aisi type a2 tool steel
Model Number
GB 42CrMo4/DIN 1.7225/AISI 4140/JIS SCM440
Material
Alloy Tool Steel
Surface treatment
Black/Grinded/Machined/Turned
Production route
EF/EAF+LF+VD/ESR
Quality inspection
UT, Chemical test, Microstructure, Physical properties etc.
UT test standard
SEP1921-84 class3 C/c to D/d
Tolerance
0/+1.0mm(turned) -0/+5.0mm(black)