May I ask when to use level 2 forgings and when to use level 3 forgings?

2019-07-18View Original

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For example, some pictures use 16MnⅡ for pipe flanges, and some use 16MnⅢ. Why is this? Which standard should we look at?

Reply #22019-07-18

See page 58 of GB/T150.

Reply #32019-07-18

For pipe flanges, there are regulations on page 254 of 20615

Reply #42019-07-18

20592 19/20 pages left

Reply #52019-07-19

GB150. HG20581. HG20592/20615 and other standards should be combined and viewed together.

Reply #62019-07-19

You can also watch HG620581

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May I ask when to use level 2 forgings and when to use level 3 forgings?

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