MBQ, or Merchant Bar Quality, is a term for a carbon steel that is of a lower quality. This type of steel is typically used in structural work where the steel will be bent, formed, punched or welded.

Grades

ASTM A36

Applications:
  • Bolted, welded, or riveted bridge, buildings, & oil rig construction
  • Forming tanks, sprockets, gears, forgings, automotive & agricultural equipment, & more

ASTM A572 GR 50

Applications:
  • Bridge plates
  • Gusset plates
  • Base plates
  • Structural steel stiffeners

ASTM F1554 GR 36

Applications:
  • 36 ksi Anchor bolts for:
    • Columns in structural steel framed buildings
    • Traffic signal & street lighting poles
    • Overhead highway signs

ASTM F1554 GR 55

Applications:
  • 55 ksi Anchor bolts for:
    • Columns in structural steel framed buildings
    • Traffic signal & street lighting poles
    • Overhead highway signs