reinforcing grade in 1930's
reinforcing grade in 1930's
(OP)
I've got a note on some 1933 drawings that says "Reinforcing steel to be new billets 20,000 lb. grade". Does anyone know exactly what that means? Should I assume 20,000 psi yield?






RE: reinforcing grade in 1930's
RE: reinforcing grade in 1930's
RE: reinforcing grade in 1930's