20Mn - GB /T 3078-2019

Grade	20Mn
Corresponding Standard	GB /T 3078-2019 Quality Structural Steel Cold Drawm Bars
Classification	Carbon Steel

20Mn Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Delivery condition	Annealing, Bright Annealing, High-Temperature Tempering or Normalizing and Tempering	≤187
Delivery condition	Cold Drawing, Cold Drawing and Polishing	≤229

1 Approximate Comparison Table High-Quality Carbon Structural Steel

2 Approximate Comparison Table High-Quality Carbon Structural Steel

China		United States	International Organization for Standardization	European Standard
GB	ISC	ASTM/AISI	ISO	EN	Numerical Grade
20Mn (GB/T 699-2015)	U21202	1022 (ASTM A29/A29M:2005)	C20E4 (ISO 683-18:1996)	C22E (EN 10083-1:1991+A1:1996) (EN 10084:1998)	1.1151

3 Approximate Comparison Table High-Quality Carbon Structural Steel

4 Approximate Comparison Table Structural Alloy Steel

5 Approximate Comparison Table Structural Alloy Steel

6 Approximate Comparison Table Structural Alloy Steel

7 Approximate Comparison Table High-Quality Carbon Structural Steel

20Mn Corresponding Standards(Same grade name, different standards)

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