pwht of joint

[swatik patel]

i have a column in which joint configuration is groove of 36 mm and fillet of size 10 mm is overlapping on it. should i go for pwht?

 

[metengr]

First, what is the column material? Carbon steel? What code of structural steel construction are you following? Have you qualified a WPS for this weld joint configuration and base material?

 

[swatik patel]

My column is of material SA516 GR. 70 ,and construction code is ASME SEC. 8 DIV 1 .
i have approved wps also.
Concern is my DCBB fillet weld is fouling on circ-seam of column. Circ-seam have thikness 36 and fillet have thikness 10mm

 

[racookpe1978]

IF you have a weld process specification, then your WPS tells you the requirements for PWHT.

Follow it. Asking the internet for a PWHT requirement is not prudent.

 

[metengr]

Follow the rules of UCS-56 in ASME Section VIII, Div 1 for PWHT guidance.

 

[swatik patel]

Not specified in code.

 

[r6155]

swatik. Read again UCS-56

Regards
r6155

 

[SnTMan]

swatik patel, I'd venture to say nobody knows exactly what you are talking about, but if you have a circ seam in a cylinder that has been previously welded and heat treated (or not) per Code, then to later add a 10 mm filet on top of it is not likely to need PWHT.

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[r6155]

swatik. In your case(36mm) preheat is required at a minimum of 95ºC during welding.

See Table UCS-56-1 in full

Regards
r6155

 

[david339933]

Also see UW-40(f).