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English Translations » 历史存档[信息] » Selection of flange bolts for superheated steam pipes in tub

Selection of flange bolts for superheated steam pipes in tube furnaces

2016-12-22View Original

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This post was last edited by 764970655 on 2016-12-22 at 12:00. The temperature of the superheated steam is 425 degrees. The original design specified the use of 35CrMoA/30CM as the bolt material; what will happen if 8.8 grade or higher-strength bolts are used instead? What is the service life of the bolts? Sea friends, come and take a look
Reply #22016-12-22
No, the coefficients of expansion are different
Reply #32017-11-30
That means there’s a problem with the service life
Reply #42017-12-01
Be careful of the graphitization tendency of carbides in steel

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Translated at 2026-07-20 22:20:55

Original: https://bbs.hcbbs.com/thread-1654750-1-1.html

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