GCr15 vs 52100, 100Cr6 and SUJ2 Bearing Steel Grades

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High Carbon High Chromium Anti-Friction Bearing Steels

GCr15 vs 52100, 100Cr6 and SUJ2 are all bearing steel grades, they are similar in chemical composition and properties.

The following tables provides an overview of GCr15 equivalent to 52100, 100Cr6 (1.3505) and SUJ2 steel.

Table-1, Chemical Composition Comparison

Chemical Composition %
CountryStandardSteel GradeCSiMnCrMo ≤Ni ≤Cu ≤P ≤S ≤O ≤Al ≤
ChinaGB/T 18254GCr150.95 to 1.050.15 to 0.350.25 to 0.451.40 to 1.650.100.250.250.0250.0200.00120.05
USAAISI SAE, ASTM A295/A295M521000.93 to 1.050.15 to 0.350.25 to 0.451.35 to 1.600.100.250.300.0250.0150.00150.05
European UnionEN ISO 683-17100Cr6 (1.3505)0.93 to 1.050.15 to 0.350.25 to 0.451.35 to 1.600.100.300.0250.0150.00150.05
GermanyDIN EN ISO 683-17100Cr6 (1.3505)0.90 to 1.050.15 to 0.350.25 to 0.451.35 to 1.650.100.300.0250.0150.00150.05
JapanJIS G4805SUJ20.95 to 1.100.15 to 0.35≤ 0.501.30 to 1.600.080.250.250.0250.025

Table-2, Brinell Hardness, (Annealed)

CountryStandardSteel GradeHardness (HBW)
ChinaGB/T 18254GCr15179 – 207
USAAISI SAE, ASTM A295/A295M52100207
EuropeanEN ISO 683-17100Cr6207
GermanyDIN EN ISO 683-17100Cr6207
JapanJIS G 4805SUJ2≤ 201

Tags: GCr15 vs 100Cr6, GCr15 vs SUJ2

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