Difference between A193 grades B7 / B7M and B8 / B8M
Difference between A193 grades B7 / B7M and B8 / B8M
(OP)
Hy everybody,
I found on the threads that grade B7M was to be used in place of grade B7 in case of sour service, they have same chemistery and allowable stress.![[thumbsup] thumbsup](https://www.tipmaster.com/images/thumbsup.gif)
For grades B8 and B8M chemistery is different but allowable stress are same, what about the use in sour service ?
Thanks in advance.
I found on the threads that grade B7M was to be used in place of grade B7 in case of sour service, they have same chemistery and allowable stress.
For grades B8 and B8M chemistery is different but allowable stress are same, what about the use in sour service ?
Thanks in advance.





RE: Difference between A193 grades B7 / B7M and B8 / B8M
RE: Difference between A193 grades B7 / B7M and B8 / B8M