hey guy just wondering what type of steel you use when making your subframes. size and thickness please

For the main spars (running from upper section of the subframe towers to the front of subframe) and brace, I've used 32mm OD structural tube with 3mm wall thickness. For the brace bars that run under the engine/gearbox, I've used approx 20-25mm OD. I've used structural tube, as mechanical tubing is used in LIGHT gauge applications - an important distinction. As an example, structural steel is what they used for roll cages. Any flat steel used was 4-5mm. My engineer was more than happy with the design and strength of the frame.
My subframe :

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-Alan
I blame my dad for my love of minis. I think I was conceived in the back seat of one
I also blame my Dad for me being 6' 1" - not really the optimum height for driving a Mini.

What engine conversion was that for?

Where do you buy structural steel and how did you get it bent?

4EFTE (1.3T) from Toyota Starlet GT
Local steel place - I just specifically asked for structural steel. It was all bent with a hand pumped-hydraulic pipe bender, although the thicker stuff was pretty hard to bend (not mandrel bent).

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-Alan
I blame my dad for my love of minis. I think I was conceived in the back seat of one
I also blame my Dad for me being 6' 1" - not really the optimum height for driving a Mini.

Ok, gotta get myself one of those pipe benders. Considering a Micra engine conversion for my Leyland and the bending was the part that looked like the biggest hassle (I have a TIG welder already)

I think the micra engine would fit lovely in a clubby front the little bit of extra room would make it a fair bit less cramped and or you could get a front mount radiator on it. There's one on in a clubby on The Mini Forum that looks very nice.
I've a micra powered deluxe so any questions ask away.

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Roads need more corners
A Deluxe(CG13DE), 2 Clubbies(998 and 1275) and 2 Morris 1100Ss

Cheers Alan