Looking for a description of S235JR material.
Also I'm having trouble locating a US supplier that lists it, any suggestions ?
That's a European Standard. If I'm not in a mistake, it equals to AISI/SAE/ASTM 1015 or A 283 Gr. C, maybe you can locate a better description looking at US Standards book or something similar.
For more 'conversions', look at
Hope it helps