A487 GR 4C instead of A216 GR WCB 1

[Johnrem]

Hello Specialists;
Can ASTM A487 Gr 4C be alternative material (valve body material ) to A216 WCB specified in Client Piping Material specification?
In other words the problem is as follows: Client piping specification stipulates A216 WCB as check valve body matrial. Vendor is propsing A487 Gr 4C.
Shall I accept or not?
Service: Gas injection
design pressure: 450 bars@70°C
Gas: Not coorosive
Design code : B31.3

Thank you in advance

 

[rneill]

Johnrem,

This is a reposting of the same question that was asked in the following thread yesterday ...

http://www.eng-tips.com/viewthread.cfm?qid=265912&page=1

Cross posting to multiple forums is contrary to the Posting Policies on eng-tips.