B7M is for high temperature service and for detail refer to
A 193/A 193M Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service
L7M is for low temperature service and for detail refer to
A 320/A 320M Standard Specification for Alloy/Steel Bolting Materials for Low-Temperature Service
hope this can help you.
Regards,
Zarei
On Wed, Jul 13, 2011 at 2:54 PM, syed moinul hasan <mhsyed1@gmail.com> wrote:
--Team/experts,Can someone help me to distinguish between B7M / L7M Nut-bolt material?Warm regardsMoin-KSA.
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