C45RC - ISO 4954-1-2024

Grade	C45RC
Corresponding Standard	ISO 4954-1-2024 Steels for cold heading and cold extruding - Technical delivery conditions - Part1: Non-alloy and alloy steels
Classification	Carbon Steel

C45RC Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cu
Minimum Value	0.42	-	0.5	-	0.02	-
Maximum Value	0.5	0.3	0.8	0.025	0.035	0.25

C45RC Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %
5＜d≤40	+AC or +AC+PE	≤600	≥60
2≤d≤5	+AR+C+AC	≤590	≥62
5＜d≤40		≤580	≥62
2≤d≤5	+AR+C+AC+LC	≤630	≥60
5＜d≤40		≤620	≥60
5＜d≤10	+AC+C	≤720	-
10＜d≤40		≤710	-

①+AR=as hot-rolled；+AR or +PE=as hot-rolled or peeled；+AR+C=as hot-rolled+cold drawn；+AR+C+AC=as hot-rolled+cold drawn+spheroidized；+AR+C+AC+LC=as hot-rolled+cold drawn+spheroidized+skin passed；+AC= spheroidized ；+AC or +AC+PE=spheroidized or spheroidized+peeled；+AC+C=spheroidized +cold drawn；+FP=treated to ferrite-pearlite structure and hardness range；+AC+C+AC=spheroidized +cold drawn + spheroidized；+AC+C+AC+LC=spheroidized +cold drawn + spheroidized + skin passed

• Mechanical properties of cold heading and cold extruding steels for quenching and tempering

Approximate Comparison Table

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
C45RC	C45RC	1.1061

C45RC Corresponding Standards(Same grade name, different standards)

1	EN 10263-4-2001
	C45RC 1.1061
2	DIN EN 10263-4-2018
	C45RC 1.1061
3	EN 10263-4-2017
	C45RC 1.1061
4	ISO 4954-2018
	C45RC
5	ISO 4954-1-2024
	C45RC

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