Encyclopedia of steel weight calculation formulas

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Encyclopedia of steel weight calculation formulas
Written By Jasmine HL
1. Formula for rebar weight calculation:
Formula: diameter mm × diameter mm × 0.00617 × length m
Example: Rebar Φ20mm (diameter) × 12m (length)
Calculation: 20 × 20 × 0.00617 × 12 = 29.616kg
2. Steel tube weight calculation formula
Formula: (outer diameter-wall thickness) × wall thickness mm × 0.02466 × length m
Example: 114mm (outer diameter) x 4mm (wall thickness) x 6m (length)
Calculation: (114-4) × 4 × 0.02466 × 6 = 65.102kg
3. Round steel weight calculation formula
Formula: diameter mm × diameter mm × 0.00617 × length m
Example: Round steel Φ20mm (diameter) × 6m (length)
Calculation: 20 × 20 × 0.00617 × 6 = 14.808kg
4. Calculation formula of square steel weight
Formula: 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. Flat steel weight calculation formula
Formula: side width (mm) x thickness (mm) x length (m) x 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)

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6. Hexagon steel weight calculation formula
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. Steel plate weight calculation formula
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
8. Flat weight calculation formula
Formula: (side length + side width) × 2 × thickness × 0.00785 × length m
Example: Flat pass 100mm × 50mm × 5mm thickness × 6m (length)
Calculation: (100 + 50) × 2 × 5 × 0.00785 × 6 = 70.65kg
9. Fangtong weight calculation formula
Formula: side width mm × 4 × thickness × 0.00785 × length m
Example: Fangtong 50mm × 5mm thick × 6m (length)
Calculation: 50 × 4 × 5 × 0.00785 × 6 = 47.1kg
10. Calculation formula for equilateral angle steel weight
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)
11. Calculation formula for weight of unequal angle steel
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)
[Other non-ferrous metals]
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
Copper tube weight calculation formula
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
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
Other information:
Brass plate: specific gravity 8.5
Copperplate: specific gravity 8.9

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Zinc plate: specific gravity 7.2
Lead plate: Specific gravity 11.37
Calculation method: specific gravity × thickness = weight per square