C30E4 - ISO 683-18-1996

Grade	C30E4
Corresponding Standard	ISO 683-18-1996 Heat-Treatable Steels, Alloy Steels and Free-Cutting Steels - Part 18: Bright Products of Unalloyed and Low Alloy Steels
Classification	Carbon Steel

C30E4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.27	0.1	0.5	-	-
Maximum Value	0.34	0.4	0.8	0.035	0.035

1 Approximate Comparison Table High-Quality Carbon Structural Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

Russia

United Kingdom

ISC

CNS

JIS

ASTM/AISI

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

GOST

BS EN/BS

U20302

S30C

SM30C

1030

G10300

C30E4

C30E
Ck30

1.1178

C30E
SC32

C30E
080M30

2 Approximate Comparison Table High-Quality Carbon Structural Steel

China	Japan	United States	International Organization for Standardization	Germany		France	European Standard		Russia	United Kingdom
GB	JIS	SAE	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
30	S30C	1030	C30 C30E4	C30 Ck30	1.0528	AF50C30 XC32	C30	1.0528	30	080M32 En5

3 Approximate Comparison Table Non-Alloy Steel for Quenching and Tempering

Japan	International Organization for Standardization	Germany	France	European Standard		Russia	United Kingdom
JIS	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
S30C	C30E4	Ck30	XC32	C30E	1.1178	30	080M30 CS30

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 30	S30C	1030	ISO 630-1:1987 C30 C30E4 C30M2	C30 XC32	30	060A30

5 Approximate Comparison Table High-Quality Carbon Structural Steel

China		United States	International Organization for Standardization	European Standard
GB	ISC	ASTM/AISI	ISO	EN	Numerical Grade
30Mn (GB/T 699-2015)	U21302	1030 ASTM A29/A29M:2005	C30E4 (ISO 683-18:1996)	C30E (EN 10083-1:1991+A1:1996) (EN 10084:1998)	1.1178

C30E4 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"!