C25 - ISO 683-1-2016

Grade	C25
Corresponding Standard	ISO 683-1-2016 Non-alloy steels for quenching and tempering
Classification	Carbon Steel

C25 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	More
Minimum Value	0.22	0.1	0.4	-	-	-	-	-	-	Cr+Mo+Ni≤0.63
Maximum Value	0.29	0.4	0.7	0.045	0.045	0.4	0.4	0.3	0.1	Cr+Mo+Ni≤0.63

C25 Mechanical Properties

	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
d≤16 or t≤8	550~700	≥370	≥19
16＜d≤40 or 8＜t≤20	500~650	≥320	≥21

1 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

China	Japan	International Organization for Standardization
GB	JIS	ISO
25	S25C	C25

2 Approximate Comparison Table High-Quality Carbon Structural Steel

China	Japan	United States	International Organization for Standardization	Germany		European Standard		Russia	Sweden	United Kingdom
GB	JIS	SAE	ISO	DIN EN/DIN	W-Nr.	EN	Numerical Grade	GOST	SS	BS EN/BS
20	S20C S22C	1020	C25	C22	1.0402	C22	1.0402	20	1450	070M20

3 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

International Organization for Standardization	Germany	European Standard		Russia
ISO	DIN EN/DIN	EN	Numerical Grade	GOST
C25	C25	C25	1.0406	25

4 Approximate Comparison Table High-Quality Carbon Structural Steel

China	Japan	United States	International Organization for Standardization	France	Russia	United Kingdom
GB	JIS	ASTM/AISI	ISO	NF EN/NF	GOST	BS EN/BS
GB/T 699-1999 25	S25C	1025	ISO 630-1:1987 C25 C25E4 C25M2	C25 XC25	25	060A25 070A26

C25 Corresponding Standards(Same grade name, different standards)

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