Cold rolled steel is rolled at room temperature and then rolled again below its recrystallization temperature. This process enables better control over finished product shape, thickness, dimensions, and a more consistent finish.

ASTM A283 steel coil is low carbon structural steel that is formable and strong. It shows excellent weldability and machining capability, making it ideal for use in industrial and commercial structures. There are four grades: A, B, C, and D.

ASTM A36 steel coil is one of the most common grades of steel used in structural applications. This mild carbon steel grade contains chemical alloys that give it properties such as machinability, ductility, and strength that are ideal for use in constructing a variety of structures.

ASTM A285 standard is for carbon steel, low and intermediate tensile strength steel coils intended for fusion-welded pressure vessels. The steel coil under ASTM A285 ranges in three grades, A, B and C, most common use is ASTM A285 Grade C coils.

ASTM A387 steel coil is chromium-molybdenum steel for pressure vessels for elevated temperature service. ASTM A387 steel coil include ASTM A387 Grade 5, Grade 9, Grade 11, Grade 12, Grade 22. Each A387 grade is divided into 2 class: class 1 and class 2.

ASTM A514 steel (also known as T1) grades incloud A, B, E, F, H, P, Q & S. This steel coil has a high yield strength and good weldability. ASTM A514 steel coil is quenched and tempered carbon-alloy steel. It is typically used when abrasion resistance and high-impact properties are required.

ASTM A515 carbon-silicon steel coils primarily for intermediate- and higher-temperature service in welded boilers and other pressure vessels. Coils are available in three grades having different strength levels: Grades 60, 65, 70, 415, 450, and 485.

ASTM A516 covers carbon steel coils intended primarily for service in welded pressure vessels where improved notch toughness is important. According to different strength levels, the coils are available in four grades: Grades 55, 60, 65, and 70. The most common is Grade 70 or called out A516-70.