Difference between a wrought steel and a forging steel 5

[ATsampalas]

Can someone explain what is the difference between a Wrought steel and a forging ?
Ex. difference between :
ASME SA 182 F 91 and
ASME SA 234 WP 91

Sincerely,

 

[metengr]

ATsampalas;
This has been asked before in this forum. Simple answer below or you can search other posts;


Wrought Material - product forms (forged, rolled, ring rolled, extruded...)
forging is a subset of wrought product form.

Now, for the above

F - forged product form
W- weldable grade
P- pipe
T- tube

 

[ATsampalas]

Thanks for your answer Mr Metengr but I am not sure my question was clear enough. Let it put otherwise :
What is the difference between
"Forging Grade 91 and Wrought Steel Grade 91 ?
Sincerely,

 

[metengr]

The difference is in the actual material specification requirements of SA 182 versus SA 234. The differences can be melting practice, forming (welded versus seamless), chemistry, heat treatment practice, testing, inspection, , etc. You need to review the two material specifications side by side.

 

[001012]

Forged steel means that when inspect the surface by maco-etching you should see grain flow, fiberlike line that following the shape of the part or product if not it could be the other form of wrought products such as rolling, extrusion etc which are show grain direction only but nor forging flow lines.