edge preparation

[shrestha1]

Hello All,
AWS D 1.1 states oxygen cutting of QT material is prohibited. The material under consideration is ASTM 517 Gr F. Is it still valid if i go with oxygen cutting or else shall i consider other option?the under consideration is fabricating steel liner for hydro power project on remote part of the country. Is there any further consideration to be considered with oxygen cutting for edge preparation?
The suggestions are highly appreciated.

Thank you

 

[goutam_freelance]

AWS D 1.1 may not be applicable as the minimum yield stress for A 517 Gr F is 100 ksi and the D 1.1 is applicable only up to 100 ksi. Please check with the latest codes.

What is QT material?

 

[r6155]

quenched and tempered.

 

[Trestala]

Some specifications can still allow thermal cutting for Q&T material if you apply preheating during cutting operation and you perform subsequent heat treatment.