UNI 7845:1978 42CrMo4 / UNI 7845 42CrMo4 Steel - Specifications & Listings

UNI 7845:1978 42CrMo4: 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.

Forms: Round Bar Category: Alloy Steel
Grade Details
GradeUNI 7845:1978 42CrMo4 / UNI 7845 42CrMo4
StandardUNI 7845:1978
DescriptionUNI 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.
Applicationsshafts,gears,axles,studs,forgings,machine components,automotive parts,hydraulic parts
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
42CrMo4 DIN EN 10083 Germany 21 listings, 22 RFQs →
AISI 4140 AISI USA 3 listings, 0 RFQs →
EN19 BS 970 UK 19 listings, 15 RFQs →
SCM440 JIS G4105 Japan 0 listings, 3 RFQs →
42CrMo GB/T 3077 China 2 listings, 0 RFQs →
KS SCM440 KS D3867 Korea 2 listings, 0 RFQs →
Supply & Demand by FormSee Full Supply & Demand →
Round Bar →
Demand, no supply
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 7845:1978 42CrMo4 / UNI 7845 42CrMo4 Listings on M-EX (For Sale)

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UNI 7845:1978 42CrMo4 / UNI 7845 42CrMo4 Round Bar
8.100 MT
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UNI 7845:1978 42CrMo4 / UNI 7845 42CrMo4 Round Bar
4.200 MT
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