By swnorris
Date 10-25-2007 13:22
Edited 10-25-2007 13:42
803056,
It's for internal use. I just wanted to get a sampling from other D1.1 users. When I include Group I and Group 2 materials, that covers 99.9% of the material grades used in structural steel fabrication. If I narrow it down to specific Group I and II material grades, or a combination of the two, I would have to write a WPS for pretty much every material grade and/or every material grade combination that we use. For example, if the WPS states A36 3/4" thick or less, to A500 B (both Group I), no other materials can be used with that procedure. If I write a WPS for A36 3/4" thick or less (Group I), to A36 greater than 3/4" thick (Group II), no other materials can be used for that procedure, etc., etc., etc.
We use A36, A53 B, A500 B, A572 Grade 50, and A992, and, useful information is included in the WPS, and, the welding parameters for these grades are pretty much the same. It's very user friendly, because if the welders can't easily understand it, it's worthless. All our welders know and understand it's contents, and I occasionally have meetings to refresh the welders. I also question welders as I walk through the shop from time to time. I also hold classes on the prequalified PJP and CJP's so that the welders fully understand the meanings of the joint designations, the symbols, the different joints, joint limitations, etc. Welders don't need to be overwhelmed with the contents of the entire code. I include what they need to know on the WPS, and in various classes, and after they absorb that and want to learn new things in the code, I dont hold them back.