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SAE J404 8630 / SAE 8630 Steel - Specifications & Listings

SAE J404 8630: Medium carbon nickel-chromium-molybdenum alloy steel with good strength, toughness and fatigue resistance. Used for crankshafts, connecting rods, high-strength bolts and heavily loaded components.

Forms: Round Bar Category: Alloy Steel
Grade Details
GradeSAE J404 8630 / SAE 8630
StandardSAE J404
DescriptionMedium carbon nickel-chromium-molybdenum alloy steel with good strength, toughness and fatigue resistance. Used for crankshafts, connecting rods, high-strength bolts and heavily loaded components.
ApplicationsCrankshafts, connecting rods, high-strength bolts and heavily loaded components
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Round Bar →
Balanced
Chemical Composition (%)
C Mn Si P S Cr Ni Mo
0.28-0.33 0.70-0.90 0.15-0.35 <=0.035 <=0.040 0.40-0.60 0.40-0.70 0.15-0.25
Mechanical Properties
tensile_strength 850-1000 MPa
yield_strength 650 MPa min
elongation 10% min
hardness 248-302 HB

Active SAE J404 8630 / SAE 8630 Listings on M-EX (For Sale)

SAE J404 8630 / SAE 8630 Round Bar
4.500 MT
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SAE J404 8630 / SAE 8630 Round Bar
4.000 MT
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