Valve material

I have something to ask about Valves

As per our client specification

For ½'' to 1 ½'' - valve body shall be ASTM A-181 Gr 2 And
For 2'' to 8'' – Valve body shall be ASTM A-216 Gr WCB

But the vendor offer is
For ½'' to 1 ½'' – and - For 2'' to 8'' is ASTM A105N

So will this A105 and A181 matches…..where can I check this. I mean any standard.

The specification for ball is SOLID 316 SS and steam and seats also 316 SS.
The vendor supplied is A182 F316. Is this same as client specification..?

Kindly advice,

Thank You,

Regards,

Sabir Received on Tue Jan 15 06:20:00 2008