Made in China, Hot Rolled Carbon Steel Coil ST52 A36 ASTM A6 is made from continuous casting slabs or initial rolled slabs. After being heated in a walking beam furnace and descaled with high pressure water, they enter the roughing mill. After the rough rolled materials are cut and trimmed, they enter the finishing mill for computer controlled rolling. After the final rolling, they are cooled by laminar flow and rolled into straight coils by the coiler. Hot Rolled Carbon Steel Coil ST52 A36 ASTM A6 is sold directly from the factory with guaranteed quality and affordable price.