Hot Roll

Hot Rolled Steel

Process

• Heated above 1,700°F (925°C) (re-crystallization temperature).
• Passed through rollers to shape into sheets, plates, or structural sections (I-beams, channels).
• Cooled naturally, leading to slight scaling (mill scale).

Characteristics

• Rough, scaled surface (requires removal for painting/welding).
• Lower dimensional precision (±0.01" tolerance).
• Softer and more ductile (easier to form).
• Internal stresses relieved (good for welding).

Common Uses

• Structural beams (I-beams, H-beams).
• Railroad tracks, shipbuilding.
• Metal plates for heavy machinery.