What is a full strength penetration weld?
What is a full strength penetration weld?
(OP)
Hi all,
Can someone please elaborate on what a "full strength penetration weld"? I needed to specify some welding to join two pieces of a cut wide flange section. I was told to use a "full strength penetration weld". I would have thought something like a butt weld might work. What kind of a weld is it? Butt weld? Fillet? What does "full strength" and "penetration" mean?
Thank you much.
Can someone please elaborate on what a "full strength penetration weld"? I needed to specify some welding to join two pieces of a cut wide flange section. I was told to use a "full strength penetration weld". I would have thought something like a butt weld might work. What kind of a weld is it? Butt weld? Fillet? What does "full strength" and "penetration" mean?
Thank you much.






RE: What is a full strength penetration weld?
If you call up a butt weld then it may only be partial penetration, so some people call up the full penetration bit to be sure.
RE: What is a full strength penetration weld?
RE: What is a full strength penetration weld?
RE: What is a full strength penetration weld?
RE: What is a full strength penetration weld?
RE: What is a full strength penetration weld?
RE: What is a full strength penetration weld?
The first couple of pages in Part 8 of the AISC manual gives some brief explanation....and AWS A3.0 deals with welding terminology.
Butt weld is a non standard term for a groove weld in a butt joint; for instance, a bevel groove weld in a butt joint.
The term "full penetration" (FP) means complete joint penetration (CJP) as opposed to partial joint penetration (PJP)...Fig 8-22. In some cases, as pointed out by Jt12, full strength can be achieved without full penetraion. IMO, the term "full strength penetration weld" means, a CJP (FP) welded joint that can attain full strength. Dep[ending on the situaion, "full strength" does not necessarily mean "full penetration" is required.
Prequalified CJP and PJP welded joints are shown in Table 8-2...and if the proposed joint does not comply with the geometry in this table, then it will have to be qualified by testing, unless a WPS/PQR exists based on previous testing.
I notice that the sub-heading Available Strength on page 8-8, refers to Sec J2.4 and Table J2.5 in Part 16.1, pages 16.1-98 through 16.1-101. Assuming you'll be using a CJP welded joint, you'll be able to determine the required filler metal strength. Does this table provide information, to enable you to ascertain, if you'll achieve "full strength" for the situation you have?
BTW, does the coefficient C1 or some similar coefficient come into play in Table J2.5?
Will you be reviewing the fabricator's WPS?
RE: What is a full strength penetration weld?
RE: What is a full strength penetration weld?
RE: What is a full strength penetration weld?
RE: What is a full strength penetration weld?