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Grade Ck45
Germany W-Nr. 1.1191
Corresponding Standard DIN 1652-1963
Bright Non-Alloy Steel - Technical Delivery Conditions
Classification Carbon Steel
Ck45 Chemical Element Composition Content (%)
Component C Si Mn P S N *
Minimum Value 0.42 0.15 0.5 - - -
Maximum Value 0.5 0.35 0.8 0.035 0.035 0.01
Ck45 Mechanical Properties
thickness
d
mm		 Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Reduction of Area
ψ
% 		Hardness
HBW
t≤5 Ck45 K Cold Drawing + No Heat Treatment (K) ≥800 ≥660 ≥4
5<t≤10 Cold Drawing + No Heat Treatment (K) ≥750 ≥580 ≥5
10<t≤16 Cold Drawing + No Heat Treatment (K) ≥700 ≥480 ≥6
16<t≤25 Cold Drawing + No Heat Treatment (K) ≥700 ≥440 ≥6
25<t≤40 Cold Drawing + No Heat Treatment (K) ≥650 ≥380 ≥7
40<t≤100 Cold Drawing + No Heat Treatment (K) ≥600 ≥300 ≥8
t>100 Cold Drawing + No Heat Treatment (K) ≥600 ≥300 ≥9
All Sizes Ck45 K+G；Ck45 SH+G Cold Drawn + Softening Annealing (K+G) or Pickling + Softening (SH+G) ≤206 HB30
t≤100 Ck45 K+N；Ck45 SH+N Cold Drawing + Normalizing (K+N) or Pickling + Normalizing (SH+N) 600~720 ≥340 ≥18
t>100 Cold Drawing + Normalizing (K+N) or Pickling + Normalizing (SH+N) By Agreement By Agreement By Agreement
t≤16 Ck45 K+V；Ck45 SH+V Cold Drawn + Quenched and Tempered (K+V) or Descaled + Quenched and Tempered (SH+V) 750~900 ≥480 ≥14 ≥30
16<t≤40 Cold Drawn + Quenched and Tempered (K+V) or Descaled + Quenched and Tempered (SH+V) 650~800 ≥400 ≥16 ≥35
40<t≤100 Cold Drawn + Quenched and Tempered (K+V) or Descaled + Quenched and Tempered (SH+V) 600~720 ≥360 ≥18 ≥40
t>100 Cold Drawn + Quenched and Tempered (K+V) or Descaled + Quenched and Tempered (SH+V) By Agreement By Agreement By Agreement By Agreement
1 Approximate Comparison Table High-Quality Carbon Structural Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST SS BS EN/BS
45 U20452 S45C S45C SM45C 1045 G10450 C45E4 C45E
Ck45 		1.1191 C45E
XC48 		45 1660 C45E
080M46
2 Approximate Comparison Table Hardenability Guaranteed Structural Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST SS BS EN/BS
45H A59455 S45C S45C SM45C 4045H H10450 C45E4H C45E4 1.1191 2C45H
(XC45) 		45 1672 2C45H
(080A42)
3 Approximate Comparison Table Plastic Mold Steel
China Japan United States International Organization for Standardization Germany Sweden
YB GB ISC JIS ASTM/AISI ISO DIN EN/DIN W-Nr. SS
SM45 SM45 T10450 S45C 1045 C45E4 C45E 1.1191 1660
4 Approximate Comparison Table High-Quality Carbon Structural Steel
China Japan United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB JIS ASTM ISO DIN EN/DIN NF EN/NF EN Numerical Grade GOST SS BS EN/BS
45H
45 		S45C 1045 C45E4 Ck45 XC45
XC48H1 		C45E 1.1191 45 1672 080M46
CFS8
5 Approximate Comparison Table Cast Steel
China Japan United States International Organization for Standardization Germany Russia United Kingdom
GB JIS ASTM UNS ISO DIN EN/DIN W-Nr. GOST BS EN/BS
ZG310-570 SCC5 80-40 J05002 340-550 GS-70
GS-CK45 		1.0554
1.1191 		45Л A3
AW2
Ck45 Corresponding Standards(Same grade name, different standards)
1 DIN 17200-1987
Ck45 1.1191
2 DIN 17204-1990
Ck45 1.1191
3 DIN 1652-1963
Ck45 1.1191

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