UNI 42CrMo4 Steel — Specifications & Listings

UNI 7845

UNI 42CrMo4 is a chromium molybdenum alloy steel per Italian Standard UNI 7845, equivalent to DIN 42CrMo4 and EN19. It provides high tensile strength, toughness and good fatigue resistance in quenched and tempered condition for demanding engineering applications.

Category: Alloy Steel

Grade Details

Grade	UNI 42CrMo4
Standard	UNI 7845
Description	UNI 42CrMo4 is a chromium molybdenum alloy steel per Italian Standard UNI 7845, equivalent to DIN 42CrMo4 and EN19. It provides high tensile strength, toughness and good fatigue resistance in quenched and tempered condition for demanding engineering applications.
Applications	shafts,gears,axles,studs,forgings,machine components,automotive parts,hydraulic parts

Equivalent / Similar Grades

Grade	Standard	Region
42CrMo4	DIN EN 10083	Germany
42CrMo4	EN 10083	Europe
AISI 4140	AISI	USA
EN19	BS 970	UK
SCM440	JIS G4105	Japan
42CrMo	GB/T 3077	China
42CD4	NF A35-551	France
KS SCM440	KS D3867	Korea

Chemical Composition (%)

C	Si	Mn	P	S	Cr	Mo
0.38-0.45	<=0.40	0.60-0.90	<=0.025	<=0.035	0.90-1.20	0.15-0.30

Mechanical Properties

tensile_strength	900-1100 MPa
yield_strength	700-900 MPa
elongation	11-16 %
hardness	248-320 HB

Typical Available Sizes

Round Bar	16-500 mm
Flat Bar	20-150 mm

Sizes are indicative. Contact seller for exact availability.

Active UNI 42CrMo4 Listings on M-EX

No active UNI 42CrMo4 listings at this time.