The rebar comes to us in 40'-60' lengths sizes ranging from #4 =1/2" to #11 2" most is unweldable steel that we use for building cages and mat's to bending whatever shape our customers require. The coils we use in certain machines are weldable steel. I know for sure its 60 grade rebar. But tomorrow I'll go talk to the salesman and see if he will print me out the heat numbers and grade for the welded and non weldable rebar. I made a knife out of the weldable rebar for 2 of my boys when I first started and surprisingly they took and held a good sharp edge from quenching in warm water, dishwashing liquid, & Epsom
Stopped at a mechanic shop today of a guy I know. Found quick struts with coil springs on them still, got 15-20 of them and hes going to keep coil springs and leaf springs for me from here on out. Pretty sure they are 1060 and they have thin black coating around them that I sanded off
That one pic was my first forge. 4" steel pipe kaowool and a hole for small propane torch to supply the heat. Got er done though