Saturday, July 4, 2020

[MW:31097] SP0472 STANDARD - WPS

WPS is prepared without PWHT with HARDNESS check in PQR  .
It meets Hardness less than 248Hv10  along CE requirements as per  SP0472

Std states that  hardness Control shall be 
1)  CE control 
  and THERMAL TREATMENT - We intent to apply t8/5  concept.

We have to incorporate  t8/5 in WPS   as per Customer advice .

Can somebody throw light on SP0472 and t8/5 cooling time  requirements / concept . How it is to be applied theoretically as well as practically during production usage


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