Skip,
The only seamless square tubing I know of is 4130 material. Most of the square /
rectangular tubing one would use to build cars, comes in A513 or A500 Grade B. I
wrote a piece for the ECTA newsletter a while ago about tubing...I try to find
it.
Higginbotham Land Speed Racing wrote:
> Allen,
> My opinion is that the TIG is much more controllable and more consistent
> than MIG wspecially at the start of the weld. I would never use MIG on a
> roll cage, for instance. One thing about square (or any shape)
> tubing.......be very careful about the quality of the tubing. A lot of
> square and rectangular tubing is for decorative purposes......not of the
> structural quality that we need for chassis work. The weld joint in the
> tubing has potential for disaster.
> Joe: is there seamless square tubing?
> Skip H
>
> At 07:41 AM 12/8/01 -0800, Allen Young wrote:
> >Joe and list: You've all given me much to ponder and regroup with. I am
> >taking a welding class at the local high school and doing mostly mig work.
>I
> >have a gas mig at home and had planned on using it for the frame work. I
>will
> >consider the tig suggestion. Is mig a reliable way to go for a fairly new
> >welder? I've been told that tig welding is a bit more difficult to learn.
> >Any comments on that?
> >
> >I'll keep you posted. ------ Allen in Oroville Ca
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