difference between extruded aluminum and sheet aluminum

[Patriot76]

My yard refuses to accept that crutches are extruded. I guess because SOME are not extruded that means for them that NONE are extruded.

If you cannot see the seam inside the tube where it is mended together, it should be considered extrusion. Sometimes you cannot see the mill lines on the outside of aluminum which identifies extrusion without the aid of a magnifying glass. If you share this with the yard they should appreciate your knowledge and might be acceptable to other questionable metal. It really helps when you have a sample of each to demonstrate your keen eye. At least they will be less likely to play games with you.

[520]

If you cannot see the seam inside the tube where it is mended together, it should be considered extrusion. Sometimes you cannot see the mill lines on the outside of aluminum which identifies extrusion without the aid of a magnifying glass. If you share this with the yard they should appreciate your knowledge and might be acceptable to other questionable metal. It really helps when you have a sample of each to demonstrate your keen eye. At least they will be less likely to play games with you.

I did just that. Even showed the scale guy that it broke while sheet bends. But they are good to me 99 percent of the time and these days I rarely scrap crutches or walkers so I am not too worried about it.

It's my personal policy to not argue with the small scale guy. If I had a whole load of something and was having an issue I would just go over his head or just take the material somewhere else.