They do have scrap bins you can pick through and buy by the pound, but it's not surplus, per se. I bought 53 lbs of small pieces of varying thickness plate to use as welding coupons for $14 a couple weeks ago. In the bins were a few pcs each of steel round tube, square tube, angle, etc, in lengths of 4 feet or so. Easily big enough to put a sidecar frame together. Just a resource for others if they have a Metal Supermarket nearby. There's a Store Locator on the site.