70Si2CrA - YB /T 5058-2005

Grade	70Si2CrA
Corresponding Standard	YB /T 5058-2005 Cold-Rolled Spring and Tool Steel Strips
Classification	Alloy Steel

70Si2CrA Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni
Minimum Value	0.65	1.4	0.4	-	-	0.2	-
Maximum Value	0.75	1.7	0.6	0.03	0.03	0.4	0.03

70Si2CrA Mechanical Properties

	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %
0.10~3.00, annealed steel strip	≤830	≥8
0.10~3.00, cold hard steel strip	785~1175

70Si2CrA Corresponding Standards(Same grade name, different standards)

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