Grade C45
Germany W-Nr. 1.0503
Corresponding Standard DIN 1652-1963
Bright Non-Alloy Steel - Technical Delivery Conditions
Classification Carbon Steel
C45 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 0.045 0.045 0.01
C45 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 C45 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 C45 K+G;C45 SH+G Cold Drawn + Softening Annealing (K+G) or Pickling + Softening (SH+G) ≤206 HB30
t≤100 C45 K+N;C45 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 C45 K+V;C45 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
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
45 S45C 1042
1045
Gr.1043
C45 C45 AF65C45
C45
C45 1.0503 45 1650 070M46
50HS

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