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UNI 7846:1978 18CrMo4 / UNI 7846 18CrMo4 Steel - Specifications & Listings

UNI 7846:1978 18CrMo4: 18CrMo4 is a chromium molybdenum carburizing steel with good hardenability and fatigue resistance. It is widely used for case hardened transmission components.

Forms: Round Bar Category: Alloy Steel
Grade Details
GradeUNI 7846:1978 18CrMo4 / UNI 7846 18CrMo4
StandardUNI 7846:1978
Description18CrMo4 is a chromium molybdenum carburizing steel with good hardenability and fatigue resistance. It is widely used for case hardened transmission components.
ApplicationsUsed in gears, shafts, pinions, crankshafts, axles, and heavy machinery components.
Supply & Demand by FormSee Full Supply & Demand →
Round Bar →
Balanced
Chemical Composition (%)
C Si Mn Cr Mo P S
0.15-0.21 0.15-0.40 0.60-0.90 0.90-1.20 0.15-0.30 0.035 max 0.035 max
Mechanical Properties
tensile_strength 700-900 MPa
yield_strength 540 MPa min
elongation 14% min
hardness 200-260 HB

Active UNI 7846:1978 18CrMo4 / UNI 7846 18CrMo4 Listings on M-EX (For Sale)

UNI 7846:1978 18CrMo4 / UNI 7846 18CrMo4 Round Bar
2.600 MT
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UNI 7846:1978 18CrMo4 / UNI 7846 18CrMo4 Round Bar
4.400 MT
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