a193 b7 min temperature 1

[stephenzztan]

hi everyone,

anyone could please help me to understand the min allowance temperature for
a193 b7 - some stated -29degC while some -40degC.
a193 b7m - some stated -29degC while some -48degC.
the maximum temp is consistent at 400degC.
i'm confused

thanks a lot.

 

So that I don't have to look up A193 or rely too much on my memory, what is 'allowance temperature'?

p.s., punctuation would enhance your reputation as a communicator.

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."

 

[The Obturator]

In the valve world, the general understanding for SA 193 Gr.B7 low temp limit is -29 Deg.C
Below this, an impact tested steel such as SA 320 Gr.L7 is used dependent on application.

Per ISO-4126, only the term Safety Valve is used regardless of application or design.

 

[XL83NL]

What the others said. Furthermore, the applicable code of construction will probably have final say in this.

Huub