SUJ2 - JIS G 4805-2025

Grade	SUJ2
Corresponding Standard	JIS G 4805-2025 High Carbon Chromium Bearing Steels
Classification	Bearing Steel

SUJ2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.95	0.15	-	-	-	1.3	-	-	-
Maximum Value	1.1	0.35	0.5	0.025	0.025	1.6	0.25	0.25	0.08

• Cu in wire rod shall be 0.20 % or under

SUJ2 Mechanical Properties

Heat Treatment or Condition	Hardness HBW
Spheroidizing Annealing	HBW: ≤201 HRBW: ≤94 HV: ≤218

Vickers hardness (HV) is only applicable to steel with a diameter of no more than 17mm.

1 Approximate Comparison Table High-Carbon Chromium Bearing Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

Russia

Sweden

United Kingdom

ISC

CNS

JIS

ASTM/AISI

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

GOST

SKF

BS EN/BS

GCr15

B00150

SUJ2

STB2

E52100

G52986

100Cr6
(B1)

100Cr6
(W3)

1.3505

100Cr6
(100C6)

ЩХ15

SKF3

535A99

2 Approximate Comparison Table Alloy Cold-Work Tool Steel

China	Japan	United States	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
Cr2 GCr15	SUJ2	52100	100Cr6	100Cr6 100Cr6RR	102Cr6	1.2067	KH ShKh15	2258	534A99 535A99

SUJ2 Corresponding Standards(Same grade name, different standards)

1	JIS G 4805-2008
	SUJ2
2	JIS G 4805-2019
	SUJ2
3	JIS G 4805-2025
	SUJ2

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!