HRPL1X96X120 Carbon Plate A36 Hot Rolled 1.0000 " Thick X 96.0000 " Wide X 120.0000 " Long 572PL3/16X96X240 Carbon Plate A572 Gr50 Hot Rolled 0.1875 " Thick X 96.0000 " Wide X 240.0000 " Long HRPL1/4X48X120 Carbon Plate A36 Hot Rolled 0.2500 " Thick X 48.0000 " Wide X 120.0000 " Long A36 is readily welded by all welding processes. As a result, the most common welding methods for A36 are the cheapest and easiest: shielded metal arc welding (SMAW, or stick welding), gas metal arc welding (GMAW, or MIG welding), and oxyacetylene welding. A36 steel is also commonly bolted and riveted in structural applications. See also

ASTM A36 is the minimum strength designation - 36 KSI This is the cheapest structural grade and what most rebar, chanels, angles, etc are made from. The 70 KSI for AISI 1018 is an average strength rating and most of the added strength does come from being cold worked.