Dear Metengr,
The customer just listed 660 A and 660 B. In this case, we wont be able to counter offer B for A or vice versa?
In addition, what is the limit for section thickness that allows grade b and c to be swap?
Thanks
Dear Metangr,
Thank you very much for your reply.
Just a further question,i would need to clarify your response, Class A is desired for service conditions where short-time tensile properties are important at ambient to moderate temperatures. Class B and C are interchangable for elevated...
Dear All,
I have been trying to research regarding the differences between these three classes but to no avail, could anyone kindly help to let me know if there are any physical differences and if they are interchangeable in their uses?
Thanks.
Keith
