For flange bolts in cold regions, can grade 8.8 be used?

2015-11-16View Original

Thread Content

According to HG/T-20613-2009, hex head bolts and double head studs of grade 8.8 can be used in temperatures ranging from above -20 to +300 degrees Celsius. In the northeastern and northwestern regions, extreme winter temperatures can drop below -20 degrees – does this mean they cannot be used there? If it is used, what should be used to replace it?

Reply #22015-11-16

A2-70, right. . . . All of these are easy to buy.

Reply #32015-11-16

Hello, do you have any experience in using this or in designing it? Could you please share more details?

Reply #42015-11-16

Isn’t it quite clear in there? A2-70 can be used down to -196

Reply #52015-11-16

If the monthly average minimum temperature is greater than –20, 8.8 grade bolts can be used

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.

For flange bolts in cold regions, can grade 8.8 be used?

Thread Content

Related Threads in This Forum

← Previous

Next →

Submit a Project

Disclaimer

Quick Links