C75 1.0650 - DIN 17222-1979

Grade	C75
Germany W-Nr.	1.0650
Corresponding Standard	DIN 17222-1979 Cold Rolled Steel Strips for Springs Technical Condition of Delivery
Classification	Carbon Steel

C75 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.7	0.15	0.6	-	-
Maximum Value	0.8	0.35	0.8	0.045	0.045

C75 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Hardness HBW
t<3*	Cold Rolled + Soft Annealing (G)	≤640	≥12	HV** ≤190
t≤2.5****	Cold Rolled + Quenching + Tempering (H+A)	*** 1320~1870		HV 390~555
t≤2.5	Quenching			≥700

C75 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!