3J71 - GB /T 34471.2-2017

Grade	3J71
Corresponding Standard	GB /T 34471.2-2017 Elastic Alloys-Part 2: Constant Elastic Alloys
Classification	Alloy Steel
Density	8.1 g/cm³

3J71 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	Ti	Co	Al	More
Minimum Value	-	-	-	-	-	4.8	42	-	2.3	0.2	0.3	Fe：余量
Maximum Value	0.02	0.7	0.76	0.01	0.01	5.5	44	0.25	2.7	2	0.7	Fe：余量

3J71 Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Hardness HBW
Cold Work + Aging	1470	HV 330

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