42crmo4 Steel
42crmo4 Steel
42crmo4 Steel
42crmo4 Steel
42crmo4 Steel

42crmo4 Steel

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%

Send Inquiry

Product Introduction

42crmo4 steel

42 crmo4 (1.7225)

Implementation standard :EN 10083/3-2006

Features: 42CrMo4 strength, high hardenability, good toughness, small deformation during quenching, high creep strength and lasting strength at high temperature.

42CrMo4 steel is the American AISI standard 4140 steel improved varieties. The steel has good machinability, easy polishing, easy biting and plating.

42crmo4Round steel specification sheet
42crmo4	Φ30	18.2481	alloy steel
42crmo4	Φ35	17.6381	alloy steel
42crmo4	Φ40	12.8271	alloy steel
42crmo4	Φ45	15.8491	alloy steel
42crmo4	Φ50	16.1450	alloy steel
42crmo4	Φ60	18.12200	alloy steel
42crmo4	Φ65	18.6100	alloy steel
42crmo4	Φ70	18.1400	alloy steel
42crmo4	Φ90	18.0800	alloy steel
42crmo4	Φ100	19.2351	alloy steel
42crmo4	Φ110	21.771	alloy steel
42crmo4	Φ130	14.635	alloy steel
42crmo4	Φ120	14.1210	alloy steel
42crmo4	Φ130	12.0310	alloy steel
42crmo4	Φ140	13.6450	alloy steel

42CrMo4 standard control:

China GB 42CrMo, Russia OCT 38XM, USA AISI 4140/4142, UK BS 708M40/708A42/709M40, France NF 40CD4/42CD4, Germany DIN 41CrMo4/42CrMo4, Japan JIS SCM4, international ISO 683/13

Mechanical property

Tensile strength σb (MPa) : ≥1080(110)

Yield strength σs (MPa) : ≥930(95)

Elongation δ5 (%) : ≥12

Section shrinkage (%) : ≥45

Impact power Akv (J) : ≥63

Impact toughness value αkv (J/cm²) : ≥78(8)

Hardness: ≤217HB

Specimen size: specimen blank size is 25mm

Heat treatment specification and metallographic structure

Heat treatment specification: quench 850℃, oil cold; Tempering 560℃, water cooling, oil cooling.

Metallographic structure: tempered sorbite.