G42CrMo4 1.7231 - ISO 14737-2021

Grade	G42CrMo4
ISO Numeric Designation	1.7231
Corresponding Standard	ISO 14737-2021 Carbon and Low Alloy Cast Steels for General Applications
Classification	Cast Steel

G42CrMo4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S ^①	Cr	Ni	Cu	Mo	V
Minimum Value	0.38	-	0.6	-	-	0.8	-	-	0.15	-
Maximum Value	0.45	0.6	1	0.025	0.02	1.2	0.4	0.3	0.3	0.05

① For castings of ruling thickness < 28 mm, S ≤ 0,030 % is permitted.

G42CrMo4 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t≤100	Normalizing + Tempering (+NT) Normalizing temperature 900~980°C , Tempering temperature 630~680°C	700~850	≥300	≥15	≥10
t≤100	Quenching + Tempering (+QT1) Quenching temperature 880~950°C , Tempering temperature 600~650°C	800~950	≥600	≥12	≥31
100＜t≤150	Quenching + Tempering (+QT1) Quenching temperature 880~950°C , Tempering temperature 600~650°C	700~850	≥550	≥10	≥27
150＜t≤250	Quenching + Tempering (+QT1) Quenching temperature 880~950°C , Tempering temperature 600~650°C	650~800	≥350	≥10	≥16
t≤100	Quenching + Tempering (+QT2) Quenching temperature 880~950°C , Tempering temperature 550~600°C	850~1000	≥700	≥10	≥27

G42CrMo4 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"!