Ck30 1.1178 - DIN 17200-1987

Ck30 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.27	-	0.5	-	-
Maximum Value	0.34	0.4	0.8	0.035	0.03

Ck30 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Steel; All Sizes	Softening Annealing (G)					≤170
Steel; d≤16	Quenching and Tempering (V)	600~750	≥400	≥18	≥40		ISO-V ≥40
Steel; 16<d≤40	Quenching and Tempering (V)	550~700	≥350	≥20	≥45		≥40
Steel; 40<d≤100	Quenching and Tempering (V)	500~650	≥300	≥21	≥50		≥40
Flat steel; d≤16	Normalizing (N)	450~630	≥280		Longitudinal ≥23
Flat steel; 16<d≤100	Normalizing (N)	450~630	≥250		≥23
Flat Steel; 100<d≤160	Normalizing (N)	430~610	≥230		≥21

New and Old Grade Replacement List

1 Approximate Comparison Table

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

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

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

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