Carbon steel Plate 516 Gr 70N

[Akoll]

Dear All ,
My Customer request from us to supply plate ( Normalized and stress relived ) , but the mill offer only normalized , we can consider the proposed specification by the mill comply with customer specification or we need to ask the mill for stress relived process to be applied , please advise ?

We can consider Normalized plate is Stress relived ?

 

[JStephen]

I would think they meant stress-relief of the vessel after fabrication. Confirm with the customer, though.

 

[Akoll]

Dear Stephen , Thanks
no, they are mentioned in Tender document the plate should be supplied ( Normalized and stress levied as per ASME BPVC II A2023, so for this requirement the plate should be normalized and stress relive should be applied it or no ?
?

 

[GD2]

Op,
Read SA 516. Plates may be ordered normalized or stress relieved or both. It's a bit weird but this is what the Standard (SA -516) specifies. Check with Manufacturer who will do both. You may find Manufacturer who will do both normalizing and stress relieving depending on MOQ.

GDD
Canada

 

[GinBread]

Another good specification to look at when you have questions such as this is SA-941. This spec lists out definitions for a lot of commonly used terminology all throughout Section II, and definitions for both of these terms "normalize" and "stress relieving" are in there.

 

[jt1234]

Normalized and stress relieved are in completely different temperatures ranges, a lot of difference as well as purpose. If you do not have residual stress from forming, bending, or welding, relieve what ?
Normalization is to tender the material structure for ductility purpose, be more resistant to stress cracking.