C50R - ISO 683-18-2014

Grade	C50R
Corresponding Standard	ISO 683-18-2014 Heat-treatable Steels, Alloy Steels and Free-Cutting Steels - Part 18: Bright Steel Products
Classification	Carbon Steel

C50R Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	More
Minimum Value	0.47	0.1	0.6	-	0.02	-	-	-	-	Cr+Mo+Ni≤0.63
Maximum Value	0.55	0.4	0.9	0.025	0.04	0.4	0.4	0.3	0.1	Cr+Mo+Ni≤0.63

C50R Mechanical Properties

	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
5≤t≤10	Cold drawn (+C)	770~1100	≥590	≥5
10＜t≤16	Cold drawn (+C)	730~1080	≥520	≥6
16＜t≤40	Cold drawn (+C)	690~1050	≥440	≥7
40＜t≤63	Cold drawn (+C)	650~1030	≥390	≥8
16＜t≤100	As-rolled + peeled (+SH)	610~910			179~269
16＜t≤40	Quenched and tempered and peeled (+QT+SH)	700~850	≥460	≥15
40＜t≤100	Quenched and tempered and peeled (+QT+SH)	650~800	≥400	≥16
5≤t≤10	Quenched and tempered + cold drawn (+QT +C)	870~1070	≥610	≥7
10＜t≤16	Quenched and tempered + cold drawn (+QT +C)	830~1030	≥580	≥7
16＜t≤40	Quenched and tempered + cold drawn (+QT +C)	790~990	≥555	≥8
40＜t≤63	Quenched and tempered + cold drawn (+QT +C)	730~930	≥510	≥9
63＜t≤100	Quenched and tempered + cold drawn (+QT +C)	680~880	≥475	≥9

Approximate Comparison Table Non-Alloy Steel for Quenching and Tempering

United States	International Organization for Standardization	Germany	European Standard
ASTM	ISO	DIN EN/DIN	EN	Numerical Grade
1050	C50R C50M2	Cm50	C50R	1.1241

C50R 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"!