C45 1.0503 - DIN 17200-1987

C45 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Pb ^*
Minimum Value	0.42	-	0.5	-	-	0.15
Maximum Value	0.5	0.4	0.8	0.045	0.045	0.33

C45 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
Steel; All Sizes	Softening Annealing (G)					≤207
Steel; d≤16	Quenching and Tempering (V)	700~850	≥500	≥14	≥30
Steel; 16<d≤40	Quenching and Tempering (V)	650~800	≥430	≥16	≥35
Steel; 40<d≤100	Quenching and Tempering (V)	630~780	≥370	≥17	≥40
Bars; 16<d≤100	Normalizing (N)	590~740	≥335		≥17
Flat steel; d≤16	Normalizing (N)	580~770	≥340		Longitudinal ≥17
Flat steel; 16<d≤100	Normalizing (N)	580~770	≥305		≥17
Flat Steel; 100<d≤160	Normalizing (N)	560~750	≥275		≥15

New and Old Grade Replacement List

Approximate Comparison Table

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

C45 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"!