Store › 3/4" x 1-1/2" Rectangular Tube - Mild steel - ERW - 11 gauge Image 1 of 1 3/4" x 1-1/2" Rectangular Tube - Mild steel - ERW - 11 gauge from $6.50 OD 3/4" x 1-1/2" - ID 1/2” x 1-1/4” - Rectangular Tube - 11 gauge - ASTM A513 - Mild steel - ERW - Cold Rolled Length: Select Length 12" 24" 36" 48" 60" 72" 84" 96" Quantity: Add To Cart Added! OD 3/4" x 1-1/2" - ID 1/2” x 1-1/4” - Rectangular Tube - 11 gauge - ASTM A513 - Mild steel - ERW - Cold Rolled