More specifically, I am interested in the allowable wall thickness for pipe under the A120-84 standard. Also, the allowable tensile strength, and percentages of constituents.
ASTM A120 was discontinued in 1987 and replaced by A53. If you specifically need the A120 spec. you might check a local technical library for an old ASTM volume (we purged our library last year of our older volumes, so can't send you one..sorry) or you can contact ASTM at