GB 3077 20MnVB grade is a Chinese grade alloy structural steel. The 20MnVB material density is 7.85 g/cm³. GB 20MnVB alloy steel is produced in hot rolled and forged alloy steel bars which are not more than 250mm of nominal diameter or thickness. GB 3077 standard specifies the classification and code, order content, size, shape, weight and allowable tolerance, technical requirements, test method, inspection rules, packaging, marking and quality certificate of alloy structure steel.
GB 3077 20MnVB Chemical Composition
|
C |
Si |
Mn |
B |
V |
|
0.17 -0.23 |
0.17-0.37 |
1.20-1.60 |
0.0005-0.0035 |
0.07-0.12 |
GB 3077 20MnVB Mechanical Properties
|
Grade
|
Mechanical Properties |
|
20MnVB |
Yield Strength
Mpa |
Tensile Strength
Mpa |
Elongation
% |
Impact energy
J |
|
1080 |
885 |
10 |
55 |
GB 3077 20MnVB steel bars are supplied in hot rolled or forged condition. If required, they can be heat treatment(annealing, normalizing or high temperature tempering) condition.
As a professional GB 3077 20MnVB alloy steel fabricator and exporter in China, SHANGHAI KATALOR can supply GB 20MnVB alloy steel bars, 20MnVB round and square bars with various sizes and quantity. It is only 30 minutes from Pudong International airport to our company. If you need GB 20MnVB alloy steel bar, we sincerely invite you to visit factory. We will pick you up at the airport if you tell us your schedule.
