AWS B4.0 VS AWS D1.1 PQR qualification

By Kix

Date 02-24-2010 17:36

Hey guys, I have a quick question. First off we had a couple welding procedures get kicked backed because the Lab tested them to ASME sec IX when they where supposed to be to NAVSEA tech pub 248. In 248 it says that destructive testing is supposed to be in accordance to AWS B4.0. Now for my quick question. Is B4.0's destructive testing call outs pretty much the same as SEC 4 IN AWS D1.1. I ask this because I don't have a copy of B4.0, but I do have my trusty 06 D1.1 book.

Thanks!!
Kix

By jwright650 (*****)

Date 02-24-2010 17:52 Edited 02-24-2010 17:58

https://www.awspubs.com/product_info.php?products_id=120

B4.0 is the Standard for Mechanical Testing.

I think you will need the NAVSEA acceptance criteria vs using the D1.1 Clause 4 criteria.

By Kix

Date 02-24-2010 18:28

Hey John, thanks for the quick reply! NAVSEA requirement is AWS B4.0. I was just wondering if AWS B4.0 criteria is the same as clause 4 criteria in D1.1.

By jwright650 (*****)

Date 02-24-2010 18:30

I don't have a copy handy, but I didn't think B4.0 had acceptance criteria in it...I thought it refers you to the code that you are testing to.

Maybe someone will chime in and confirm this.
edit:
Here is what it says in the description:
NOTE Acceptance criteria are not included but may be found elsewhere in application standards,

By 803056

Date 03-01-2010 15:14

Navsea TP278 will direct you to Mil-Std-2035 Class 1 for the applicable acceptance criteria for procedure and welder qualification with regards to bend testing. The bending requirements for TP278 are listed in TP248. The bend radius is a function of the elongation of the base metal. In contrast, the bend radius are based on tensile strength in D1.1. The result is that TP278 can be more stringent than D1.1 for certain materials.

Tensile test requirements of TP248 (referenced by TP278) are more stringent with materials that respond poorly to heat as is the case when welding heat treatable aluminum alloys such as 6061-T6. You will note that TP278/248 does not list 6061-T6 as an approved base metal with a S number assigned to it. It will not meet the tensile test requirements of TP.

Best regards - Al