WELDING QUESTIONS... ANSWERED!

By Alberto Cabello Date 01-10-2006 18:48

My name is Alberto from North of Mexico, I will like to share ideas too, regarding to AWS, I am an AWS member, and I was certificated as a CAWI last year.

By Bill Halliday Date 01-19-2006 08:24

I am trying to establish the following,
if my specification for piping 2" to 24" calls for pipe STD WT SMLS STL A106-B,
But 30" to 36" calls for pipe 0.5 Wall ERW A672 GR C60 Class 32 Normalised.

I would like to find out if i can substitute the A106B in Place of the A672 in 30 to 36" range as it is more readily available

By welderette (**)

Date 01-19-2006 15:46

Bill, I have done a quick recearch in ASME Section II and in my humble opinion I believe the substitution can be made. Reviewing P#'s , Group #'s, Min. Tensile , and chemical requirements it is a good match. However, you should post this inquiry to the Technical Section of this Forum, for the trully great minds on this Forum to hash it out. They may not find this post in the Training Section. Good Luck.

By jon20013 (*****)

Date 01-19-2006 16:56

Bill, Deb; while I agree with Deb's suggestion I would caution that it may be considered a design change on your particular facility... what is your function there?

By the way, you may have one helluva tough time trying to find 106/B in those sizes... incidentally there is a tensile strength difference also and while the 106/B has a higher tensile and is seamless as compared to welded, you shouldn't arbitrarily make the decision to switch materials unless you have design authority.

By smbid Date 01-11-2006 04:27

Beware of welding-secrets-revealed.com. The video previews on that web site are unlawful copies of Wall Mountain Company's instructional welding videos. There is also a script in the code that empties your computer's clipboard, and may affect other applications you have running. The registrar of the web site is located in Australia, with a call center in Scappoose, Oregon. We've ordered a set of these DVDs through a third party to verify that the DVDs are pirated copies before we shut this guy down.

Thank you,
Steve Bleile, President
Wall Mountain Company, Inc.
steve@weldingvideos.com

By jwright650 (*****)

Date 01-11-2006 11:31

Good detective work! This stuff has been posted on here in the past and it's annoying because they usually don't give any contact info.
John Wright

By turbo38t (*)

Date 01-26-2006 23:35

Hey, I am going in this Saturday for a welding test with a construction group. Anyways, I have
plenty of experience with MIG and stick but am really looking for some advice. I don't currently
weld every day and need some pointers. What rods and wire types are typically used for repairs on
loader, hoe and excavator buckets? IE: 7018 Reverse? ER70S6? I don't have any experience with BIG machines (Syncrowave 250dx and Millermatic 251X are the biggest). The company is willing to hire the right guy meaning they will train the right guy. Welding is my passion but I want to know a little more about spray arc, it as a process, and maybe what some typical pass types are for bucket repairs.....like for a fillet am I doing a root pass with mig or just one big pass....what about FCAW? Not looking to learn everything overnight but just get as much info as I can so they realize how much I want to learn. What rods and wire types are typically used for repairs on
loader, hoe and excavator buckets? I assume these are hi tensile steel nut not exactly sure.
Also, what settings are typical with the rods you would use? I am assuming that 7018 and 6011 are
popular numbers but was thinking that the 6011 might not be considering it is not a low-hy.
Anyways, just looking for some pointers, also proper technique for beginning and ending welds and
recommended weaving paterns for the different processes. I am a self taught(mostly) welder but
this company is looking for someone they can train. In all reality they want a good person,
willing to learn but with a decent amount of fab and welding experience. Other things being welded
would be trailer hitches etc but like I said, I am looking to get my feet wet and they just want
someone with "some" know how.....ALL opinions, suggestions and recommendations welcome. Thanks. Dave