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English Translations » 历史存档[信息] » Hardness of forgings

Hardness of forgings

2015-10-13View Original

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The gasket material is S30408, while the flange is made of 16MnD. The hardness difference between these two materials must be kept above a certain value, which is specified on the drawings. But I’m not sure which standard can be used to determine this hardness value
Reply #22015-10-13
The hardness of these two materials differs significantly to begin with, so there is no need to consider differences in hardness during use. The requirement for a hardness difference is mainly aimed at protecting the flange sealing surface.
Reply #32015-10-14
Thank you for your answer. May I ask what standards are used to determine the hardness values of these two materials?
Reply #42015-10-14
It should be available in Volume 1 of the Mechanical Design Handbook

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Translated at 2026-07-21 01:31:39

Original: https://bbs.hcbbs.com/thread-1476128-1-1.html

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