08 - GOST 1050-1988

Grade	08
Corresponding Standard	GOST 1050-1988 Sized Bars Made Of High-quality Structural Carbon Steel with A Special Surface Finish
Classification	Carbon Steel
Properties	Weldability Carburizing Ability

08 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	As
Minimum Value	0.05	0.17	0.35	-	-	-	-	-	-
Maximum Value	0.12	0.37	0.65	0.035	0.04	0.1	0.3	0.3	0.08

① Identification numbers for steels (depending on degree of deoxidation) shall be used: kn is for rimmed steel; nc is for semi-killed steel; and identification numbers without letters are for killed steels.
②The nitrogen fraction of total mass in basic oxygen steel shall not exceed 0.006 % for light-gage rolled products and strips and 0.008 % for other types of rolled products.

08 Mechanical Properties

product	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %
Rolled product	≥320	≥196	≥33	≥60

1 Approximate Comparison Table High-Quality Carbon Structural Steel

China		United States		France	Russia	United Kingdom
GB	ISC	ASTM/AISI	UNS	NF EN/NF	GOST	BS EN/BS
08	U20082	1008	G10080	XC6	08	040A04 050A04

2 Approximate Comparison Table High-Quality Carbon Structural Steel

International Organization for Standardization	Germany	France	European Standard		Russia	United Kingdom
ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
C10 C15M2	Ck10 Ck15	XC10 XC12	C10E	1.1121	08 10	045M10 CS12

3 Approximate Comparison Table High-Quality Carbon Structural Steel

China	Japan	United States	European Standard		Russia
GB	JIS	ASTM/AISI	EN	Numerical Grade	GOST
08	SPHE,S10C	1008	DC01 DC03	1.0330 1.0347	08

08 Corresponding Standards(Same grade name, different standards)

1	GB /T 699-1999
	08 U20082
2	GB /T 699-2015
	08 U20082
3	GOST 1050-1988
	08
4	GB /T 710-2008
	08 U20082
5	GB /T 711-2017
	08
6	GB /T 13237-2013
	08

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