Hi Everyone,
I know similar questions have been discussed regarding the sharing of welding procedures but this situation is a little different.
I am looking for opinions on the interpretation of ASME Section IX in regards to what constitutes "Each manufacturer or contractor" for the...
Hi all,
I was hoping to get some opinions regarding a procedure qualification using under matching filler metal.
In the next few weeks I will need to do a D1.1 procedure qualification with A514 quenched and tempered steel. The customer has specified under matching filler metal, E90 and E100...
Thanks for the replies,
The materials have been specified by the design engineers of the weldment. We are doing a contract fabrication of the prototype so I
have no control of the material specifications. I am not entirely convinced that the designers have completely thought out their...
Hi all,
I know there is a considerable amount of knowledge within this forum and I would like to get your opinions regarding this material combination.
Background;
Large frame weldment comprised of A572 Grd 50 material. There are several locations where welding 1.5" and 3" pins to the A572...
Thanks alot Al that really helped me out.
Since we're talking MIL-STD, the customer would like metal core wire to be used but I am not finding any on the filler metal chart Table 2 in Mil-Std 278. It seems to me that I would have to seek approval for the usage of this. I am going off of a 1995...
Thanks Al,
So if I'm reading it correctly A36 is listed for use as bars and bar size shapes only limited to 3/4" like you said.
For ordinary strength structural steel such as plates, I would need to spec out "ABS grade A" or "ABS grade B" instead of A36 as stated in 1.2.1 unless approval is...
Hi all,
I am looking for some answers on Mil-Std 278. In the base metal grouping table there is no listing for A36 plate steel. Does someone know what the MIL-STD eqivalent to A36 steel would be? In group"S-1" in the table it shows carbon steel so I am assuming it should be within this group...
Is there a variable stating that when a welder passes a qualification test he is limited to steel groups 1 and 2. I see it stated on wpqr forms but cannot find it in the D1.1. There are group 3 steels in table 3.1. I do not doubt that it is a variable I just want to know where to find it. I was...
Thanks Al, I was hoping you would weigh in on this. I was not aware that these holes were going to be drilled as I would have recommended that the end caps be left off for heat treating. I may lobby for an engineering deviation since the tubes in question provide limited structural support...
Hello,
Square tubing welded onto another part of a weldment. The tubing will have end caps welded on and small relief holes drilled in them for heat treatment purposes. The holes will be welded after welment cools. Because of the lack of backing what would you consider this weld as per D1.1...
