Сталь  1.2631 / X50CrMoW9-1-1

Химический состав стали 1.2631

C	Si  ≤	Mn  ≤	P ≤	S ≤	Cr	Ni	Mo	Other
0.45-0.55	0.80-1.00	0.40-0.60	0.035	0.035	8.00-9.00		1.10-1.30	W   1.10-1.30

Механические свойства стали 1.2631

Yield Rp0.2 (MPa)	Tensile Rm (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
517 (≥)	785 (≥)	34	33	21	Solution and Aging, Annealing, Ausaging, Q+T,etc	144