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Grade Ck22
Germany W-Nr. 1.1151
Corresponding Standard DIN 17204-1990
Classification Carbon Steel
Ck22 Chemical Element Composition Content (%)
Component C Si Mn P S
Minimum Value 0.17 - 0.3 - -
Maximum Value 0.24 0.4 0.6 0.035 0.035
Ck22 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Reduction of Area
ψ
% 		Hardness
HBW 		Impact Energy Absorption
KV2
J
Hot drawn, cold drawn pipes Annealing ≤156
Pipe material t≤16 Normalizing (N) 420~550 ≥260 ≥21(long.)；≥19(tr.)
Pipe material 16<t≤40 Normalizing (N) 400~530 ≥240 ≥24(long.)；≥22(tr.)
Pipe material 40<t≤80 Normalizing (N) 380~510 ≥220 ≥24(long.)；≥22(tr.)
Pipes t≤8 Quenching + Tempering (V) 500~700 ≥340 ≥20(long.)；≥18(tr.) ≥50
Pipes; 8< t≤20 Quenching + Tempering (V) 470~670 ≥290 ≥22(long.)；≥20(tr.) ≥50 *
≥50
Pipes; 20< t≤50 Quenching + Tempering (V) 440~640 ≥270 ≥22(long.)；≥20(tr.) ≥50 ≥40
Pipe; 50<t≤80 Quenching + Tempering (V) 420~620 ≥260 ≥22(long.)；≥20(tr.) ≥50 ≥40
1 Approximate Comparison Table
China Taiwan, China Japan South Korea United States Germany France Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS DIN EN/DIN W-Nr. NF EN/NF GOST SS BS EN/BS
20 U20202 S20C S20C SM20C 1020 G10200 C22E
Ck22 		1.1151 C22E
XC18 		20 1435 C22E
070M20
2 Approximate Comparison Table
Japan United States Germany France European Standard Russia United Kingdom
JIS ASTM DIN EN/DIN NF EN/NF EN Numerical Grade GOST BS EN/BS
S20C 1020 Ck22 XC18 C22E 1.1151 20 070M20
CS22
Ck22 Corresponding Standards(Same grade name, different standards)
1 DIN 17200-1987
Ck22 1.1151
2 DIN 17204-1990
Ck22 1.1151
3 DIN 1652-1963
Ck22 1.1151

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