Eng-Tips is the largest engineering community on the Internet
Intelligent Work Forums for Engineering Professionals
-
Congratulations waross on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
difference b/w L7 and B8 bolts 1
- Thread starter hassmx0f
- Start date
No, they are not interchangeable grades and what is the difference? Have you even a copy of the referenced ASTM A 320 material specification? If not get a copy and you will see the obvious differences between a L7 quenched and tempered bolt grade and B8 austenitic stainless steel bolt grade.
-
1
- #3
Of course they are not interchangeable. Both L7 and B8 bolts are applicable to low-temperature service. However, L7 is a Cr-Mo low alloy steel while B8 is a stainless steel(SS 304). L7 is recommended for temperatures above -73℃ while B8 for temperatures above -255℃(such as Liquid Natural Gas and Liquid Nitrogen services).
-------------------------------------------
Hebei Metals Industrial Limited
-------------------------------------------
Hebei Metals Industrial Limited
Portland Bolt has some of the bolts properties
- Status
Similar threads
- Locked
- Question
- Locked
- Question
- Locked
- Question