Tiêu chuẩn
AISI, ASTM, bs, DIN, GB, JIS
Hợp kim hay không
Là hợp kim
Nhãn hiệu
Kangheng 4140 steel price per kg
Số Mô Hình
4140/1.7225/42CrMo4/SCM440/EN19
Grade
4140/1.7225/42CrMo4/SCM440/EN19
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
Heat treatment
Annealing Q+T