Crmo 4 Material
Crmo 4 Material
Crmo 4 Material
Crmo 4 Material
Crmo 4 Material

Crmo 4 Material

Chemical composition Carbon C: 0.38 ~ 0.45% Silicon Si: ≤0.40% Manganese Mn: 0.60 ~ 0.90% Sulfur S: Allowable residual content ≤0.035% P: Allowable residual content ≤0.035% Chromium Cr: 0.90 ~ 1.20% Molybdenum Mo: 0.15 ~ 0.30%

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Product Introduction

crmo 4 material

Grade 42CrMo4

European standard steel number 1.7225

Corresponding to the standard EN 10083-3-2006

Quenched and tempered steels - Part 3 Technical delivery conditions for alloy steels

Brand/Supply source

Classified alloy steel

Label alloy structural steel

It is used to make shafts, gears, connectors and structural parts of mining machinery, engineering machinery, petroleum machinery, hydraulics, machine tools, automobiles, lifting equipment, etc.

Baosteel is available for hot-rolled steel plate of this grade, and the specification and size of the manufacturer are consulted

This standard applies to heat-formed semi-finished products, such as ingot, billet, thick steel sheet; Steel bars; Bar steel; Wide strip steel; Hot rolled strip and sheet/sheet steel; Forged steel

42CrMo4 Chemical element composition content(%)

	ingredient	C	Si	Mn	P	S	Cr	Mo
JIS	Min	0.38	-	0.6	-	-	0.9	0.15
JIS	Max	0.45	0.4	0.9	0.025	0.035	1.2	0.3

42CrMo4 mechanical property

dia. d mm	Heat treatment or condition	strength of extension σ_b Mpa	yield σ_s Mpa	Elongation or elongation after breaking δ %	percentage reduction of area ψ %	hardness HBW	Shock absorption energy KV2 J
-*	+S	-	-	-	-	≤255	-
-*	+A	-	-	-	-	≤241	-
-*	+AC	≤630	-	-	≥57	-	-
d≤65**	+QT	860~1060	≥730	≥14	≥50	-	≥50