Prequalified Weld for Solid Rods

By Thomas Hunt Date 05-16-2016 20:18

Obviously the AWS D1.1 prequalified welds apply to welding plates to plates. Can these prequalified welds be applied to welding solid rods end to end such as a CJP or PJP weld for extending an anchor bolt rod made of ASTM A36 material or would this require qualifying by testing with a PQR?

Thomas Hunt, S.E.

By 60John

Date 05-23-2016 20:11

We need a bit more Information anchor rod size is it embedded how much do you need to add. You could think Stud Welding with a tension test that would give you CJP it would fall under 7.6 if downhand welded. But regardless the EOR would have to buy off any repair proposed.

By SCOTTN

Date 05-24-2016 13:04

There's another option that doesn't require welding....

http://msc.aisc.org/globalassets/modern-steel/steel-interchange/1993/011993_1993v01_si_web.pdf

By Thomas Hunt Date 06-02-2016 22:32

The anchor bolt is 1 1/4 inch diameter and made from ASTM A36 material. The field needs to add about a 6 inch extension and has submitted a double bevel (i.e. chisel) welding diagram. I know that there are other alternatives but the basic question is whether this would qualify as a "prequalified" weld or would it be required to be qualified by testing.

By jwright650 (*****)

Date 06-03-2016 10:49

Hi Thomas, A36 is a material that is found in the list of materials that is considered as a prequalified material. A pre-qualified procedure could possibly be written as long as all of the essential elements required are included. (See Clause 3 in AWS D1.1 for those requirements)

By 803056

Date 06-10-2016 18:45

The one condition for prequalification that comes to mind is the need for back gouging if the contractor elects to develop a prequalified WPS.

Al