型号
4340/1.6511/SCM439/40CrNiMoA
生产工艺
Hot Rolled/Forged/Cold Drawn
应用
Alloy Structural Steel Bar
Product Name
ASTM 4340 /DIN 1.6511 /JIS SCM439 /GB 40CrNiMo Alloy Structural Steel
Grade
4340/1.6511/SNCM439/40CrNiMoA
Surface treatment
Black/Bright
Heat treatment
Annealing Q+T