Ck60 1.1221 - DIN 17222-1979

Grade	Ck60
Germany W-Nr.	1.1221
Corresponding Standard	DIN 17222-1979 Cold Rolled Steel Strips for Springs Technical Condition of Delivery
Classification	Carbon Steel

Ck60 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.57	0.15	0.6	-	-
Maximum Value	0.65	0.35	0.9	0.035	0.035

Ck60 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)	≤620	≥13	HV** ≤185
t≤2****	Cold Rolled + Quenching + Tempering (H+A)	*** 1180~1680		350~500
t≤2	Quenching			≥670

1 Approximate Comparison Table High-Quality Carbon Structural Steel

China		United States		International Organization for Standardization	Germany		France	Russia	Sweden	United Kingdom
GB	ISC	ASTM/AISI	UNS	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	SS	BS EN/BS
60	U20602	1060	G10600	C60E4	C60E Ck60	1.1221	C60E XC60	60	1678	C60E 070M60

2 Approximate Comparison Table High-Quality Carbon Structural Steel

China	Japan	International Organization for Standardization	Germany	France	European Standard		Russia	United Kingdom
GB	JIS	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
60	S58C	C60E4	Ck60	XC60	C60E	1.1221	60 60G	070M60 CS60

Ck60 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"!