The formula for calculating the theoretical weight of various types of steel, calculation method: specific gravity × thickness = weight per square.

1. Steel plate weight calculation formula: 7.85 × length (m) × width (m) × thickness (mm)

Example: steel plate 6m (length) × 1.51m (width) × 9.75mm (thickness)

Calculation: 7.85 × 6 × 1.51 × 9.75 = 693.43kg

2, steel tube weight calculation formula: (outer diameter-wall thickness) × wall thickness mm × 0.02466 × length m

Example: 114mm (outer diameter) x 4mm (wall thickness) x 6m (length) of steel pipe

Calculation: (114-4) × 4 × 0.02466 × 6 = 65.102kg

3. Formula for calculating the weight of round steel: diameter mm × diameter mm × 0.00617 × length m

Example: Round steel Φ20mm (diameter) × 6m (length)

Calculation: 20 × 20 × 0.00617 × 6 = 14.808kg

4. The formula for calculating the weight of square steel: side width (mm) x side width (mm) x length (m) x 0.00785

Example: Square steel 50mm (edge width) × 6m (length)

Calculation: 50 × 50 × 6 × 0.00785 = 117.75 (kg)

5. The formula for calculating the weight of flat steel: side width (mm) × thickness (mm) × length (m) × 0.00785

Example: Flat steel 50mm (edge width) x 5.0mm (thickness) x 6m (length)

Calculation: 50 × 5 × 6 × 0.00785 = 11.7.75 (kg)

6. Hexagonal steel weight calculation formula: opposite diameter × opposite diameter × length (m) × 0.00068

Example: Hexagonal steel 50mm (diameter) x 6m (length)

Calculation: 50 × 50 × 6 × 0.0068 = 102 (kg)

7. Formula for calculating the weight of rebar: diameter mm × diameter mm × 0.00617 × length m

Example: Rebar Φ20mm (diameter) × 12m (length)

Calculation: 20 × 20 × 0.00617 × 12 = 29.616kg

8.Calculation formula for square tube weight

Formula: (side length + side width) × 2 × thickness × 0.00785 × length m

Example: rectangular tube 100mm × 50mm × 5mm thick × 6m (length)

Calculation: (100 + 50) × 2 × 5 × 0.00785 × 6 = 70.65kg

9, square tube weight calculation formula

Formula: side width mm × 4 × thickness × 0.00785 × length m

Example: Square tube 50mm × 5mm thick × 6m (length)

Calculation: 50 × 4 × 5 × 0.00785 × 6 = 47.1kg

10.Calculation formula for equilateral angle steel weight

Formula: side width mm × thickness × 0.015 × length m (rough calculation)

Example: Angle steel 50mm × 50mm × 5 thickness × 6m (length)

Calculation: 50 × 5 × 0.015 × 6 = 22.5kg (the table is 22.62)

11.Calculation formula for weight of unequal angle steel

Formula: (edge width + edge width) × thickness × 0.0076 × length m (rough calculation)

Example: Angle steel 100mm × 80mm × 8 thickness × 6m (length)

Calculation: (100 + 80) × 8 × 0.0076 × 6 = 65.67kg (Table 65.676)

Other non-ferrous metals

12, brass tube weight calculation formula

Formula: (outer diameter-wall thickness) × thickness × 0.0267 × length m

Example: Brass tube 20mm × 1.5mm thick × 6m (length)

Calculation: (20-1.5) × 1.5 × 0.0267 × 6 = 4.446kg

13.Calculation formula for copper tube weight

Formula: (outer diameter-wall thickness) × thickness × 0.02796 × length m

Example: Copper tube 20mm × 1.5mm thick × 6m (length)

Calculation: (20-1.5) × 1.5 × 0.02796 × 6 = 4.655kg

14.Aluminum flower plate weight calculation formula

Formula: length m × width m × thickness mm × 2.96

Example: Aluminum flower panel 1m wide × 3m long × 2.5mm thick

Calculation: 1 × 3 × 2.5 × 2.96 = 22.2kg