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JIS G4805 SUJ2 Steel - Specifications & Listings

JIS G4805 SUJ2: Japanese bearing steel, high carbon chromium

Forms: Round Bar Category: Tool & Die Steels
Grade Details
GradeJIS G4805 SUJ2
StandardJIS G4805
DescriptionJapanese bearing steel, high carbon chromium
ApplicationsBall bearings, roller bearings, bearing races, precision rolls
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
100Cr6 DIN Germany 10 listings, 8 RFQs →
EN31 BS970 UK 17 listings, 12 RFQs →
AISI 52100 SAE USA 0 listings, 3 RFQs →
GCr15 GB China 12 listings, 11 RFQs →
NF A35-551 100C6 NF A35-551 France 0 listings, 2 RFQs →
Market Snapshot

Market balanced

Daily refresh · 07 Aug 2026

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7D Offer Price
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15D Offer Price
● 0.0%
30D Offer Price
▲ +0.4%
Supply & Demand by FormSee Full Supply & Demand →
Round Bar →
Balanced
Chemical Composition (%)
C Si Mn Cr S P
0.95–1.10 0.15–0.35 ≤0.50 1.30–1.60 ≤0.025 ≤0.025
Mechanical Properties
Tensile Strength ≥650 MPa (annealed)
Hardness HRC 60–64 (hardened)
Hardness HB 183–229 (annealed)
Typical Available Sizes
Round Bar 6mm–150mm dia
Flat Bar 15×5mm–100×25mm
Sizes are indicative. Contact seller for exact availability.
Processing:

Active JIS G4805 SUJ2 Listings on M-EX (For Sale)

JIS G4805 SUJ2 Round Bar
2.000 MT
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JIS G4805 SUJ2 Round Bar
1.700 MT
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JIS G4805 SUJ2 Round Bar
1.200 MT
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Buyer RFQs for JIS G4805 SUJ2

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JIS G4805 SUJ2 Round Bar
1.500 MT
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JIS G4805 SUJ2 Round Bar
2.400 MT
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JIS G4805 SUJ2 Round Bar
1.800 MT
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