GCr15 vs 52100, 100Cr6 and SUJ2 Bearing Steel Grades

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 %

Country

Standard

Steel Grade

Mo ≤

Ni ≤

Cu ≤

P ≤

S ≤

O ≤

Al ≤

China

GB/T 18254

GCr15

0.95 to 1.05

0.15 to 0.35

0.25 to 0.45

1.40 to 1.65

0.10

0.25

0.025

0.020

0.0012

0.05

USA

AISI SAE, ASTM A295/A295M

52100

0.93 to 1.05

0.15 to 0.35

0.25 to 0.45

1.35 to 1.60

0.10

0.25

0.30

0.025

0.015

0.0015

0.05

European Union

EN ISO 683-17

100Cr6 (1.3505)

0.93 to 1.05

0.15 to 0.35

0.25 to 0.45

1.35 to 1.60

0.10

–

0.30

0.025

0.015

0.0015

0.05

Germany

DIN EN ISO 683-17

100Cr6 (1.3505)

0.90 to 1.05

0.15 to 0.35

0.25 to 0.45

1.35 to 1.65

0.10

–

0.30

0.025

0.015

0.0015

0.05

Japan

JIS G4805

SUJ2

0.95 to 1.10

0.15 to 0.35

≤ 0.50

1.30 to 1.60

0.08

0.25

0.025

–

Table-2, Brinell Hardness, (Annealed)

Country	Standard	Steel Grade	Hardness (HBW)
China	GB/T 18254	GCr15	179 – 207
USA	AISI SAE, ASTM A295/A295M	52100	207
European	EN ISO 683-17	100Cr6	207
Germany	DIN EN ISO 683-17	100Cr6	207
Japan	JIS G 4805	SUJ2	≤ 201

Tags: GCr15 vs 100Cr6, GCr15 vs SUJ2