NF A35-551 42CD4 Steel — Specifications & Listings

NF A35-551

Chromium-molybdenum alloy steel with high tensile strength, toughness and fatigue resistance after quenching and tempering. Extensively used in heavy duty engineering applications.

Category: Alloy Steel

Grade Details

Grade	NF A35-551 42CD4
Standard	NF A35-551
Description	Chromium-molybdenum alloy steel with high tensile strength, toughness and fatigue resistance after quenching and tempering. Extensively used in heavy duty engineering applications.
Applications	gear shafts, crankshafts, spindles, studs, high pressure parts, forged components

Equivalent / Similar Grades

Grade	Standard	Region
42CrMo4	DIN EN 10083	Germany
AISI 4140	AISI	USA
708M40	BS970	UK
SCM440	JIS G4053	Japan
42CrMo	GB	China
GOST 4543 35XM	GOST 4543	Russia

Chemical Composition (%)

C	Si	Mn	S	P	Cr	Mo
0.38-0.45	0.15-0.40	0.60-0.90	<=0.035	<=0.035	0.90-1.20	0.15-0.30

Mechanical Properties

tensile_strength	900-1100 MPa
yield_strength	>=750 MPa
elongation	>=12%
hardness	270-320 HB

Typical Available Sizes

Round Bar

16-350 mm dia

Sizes are indicative. Contact seller for exact availability.

Active NF A35-551 42CD4 Listings on M-EX

No active NF A35-551 42CD4 listings at this time.