What determines the material property grade of studs?
Thread Content
What determines the selection of the material property grade for studs?
The values 5.6 and 8.8 mentioned later are classified according to strength grades, whereas codes like A4-70 are classified based on both the material code and its strength; you can find out this by referring to the standard numbers listed earlier.
Yes, as you said, the way of ranking is different.
In what situations are A2-70 and A4-70 used respectively, and what factors should be considered to choose different materials or grades?
1. Selection should be based on the product’s design standards. 2. The material of the bolts and nuts is selected based on the medium and the material of the connectors. 3. Select according to strength requirements. Wait.
If it is to be used on pipe flanges, follow the provisions of HG/T20592-2009