40Mn2 - GB /T 3078-2019

Grade	40Mn2
Corresponding Standard	GB /T 3078-2019 Quality Structural Steel Cold Drawm Bars
Classification	Alloy Steel

40Mn2 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Delivery condition	Annealing, Bright Annealing, High-Temperature Tempering or Normalizing and Tempering	≤217
Delivery condition	Cold Drawing, Cold Drawing and Polishing	≤269

Approximate Comparison Table Structural Alloy Steel

China		Taiwan, China	Japan	South Korea	United States		International Organization for Standardization	France	European Standard		Russia
GB	ISC	CNS	JIS	KS	ASTM/AISI	UNS	ISO	NF EN/NF	EN	Numerical Grade	GOST
40Mn2	A00402	SMn438	SMn438 SMn443	SMn438	1340	G13400	42Mn6	40M5	42Mn6	1.1055	40Г2

40Mn2 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"!