SUJ4 - JIS G 4805-2019

Grade	SUJ4
Corresponding Standard	JIS G 4805-2019 High Carbon Chromium Bearing Steels
Classification	Alloy Steel
Properties	Hardness

SUJ4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.95	0.15	-	-	-	1.3	-	-	0.1
Maximum Value	1.1	0.35	0.5	0.025	0.025	1.6	0.25	0.25	0.25

SUJ4 Mechanical Properties

Heat Treatment or Condition	Hardness HBW
Spheroidizing Annealing	≥201

New and Old Grade Replacement List

SUJ4 Corresponding Standards(Same grade name, different standards)

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