C20GC - ISO 4954-1-2024

Grade	C20GC
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

C20GC Chemical Element Composition Content (%)

Component	C	Si ^①	Mn ^②	P	S	Cr	Ni	Cu	Mo	Al ^①	More
Minimum Value	0.18	0.15	0.7	-	-	-	-	-	-	-	Cr+Ni+Mo≤0.50
Maximum Value	0.22	0.25	0.9	0.025	0.025	0.3	0.3	0.3	0.1	0.015	Cr+Ni+Mo≤0.50

C20GC Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %
5＜d≤100	+AR or +AR+PE	≤560	≥55*
5＜d≤100	+AC or +AC+PE	≤480	≥65
5＜d≤10	+AR+C	≤650	≥53
10＜d≤40		≤640	≥53
2≤d≤5	+AR+C+AC	≤470	≥67
5＜d≤10		≤460	≥67
10＜d≤40		≤460	≥67
2≤d≤5	+AR+C+AC+LC	≤510	≥63
5＜d≤40		≤500	≥63
5＜d≤10	+AC+C	≤570	≥60
10＜d≤40		≤560	≥60

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 wire rod, bars and wire not intended for heat treatment after cold working
* The values are given only for information.

1 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

Japan	International Organization for Standardization
JIS	ISO
SWRCH22K	C20GC

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

Japan	International Organization for Standardization
JIS	ISO
SWRCH22K	C20GC

C20GC Corresponding Standards(Same grade name, different standards)

1	ISO 4954-2018
	C20GC
2	ISO 4954-1-2024
	C20GC

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!