Theoretical stainless steel weight calculation formula

Stainless Steel Pipe

Stainless steel round tube
Formula: (outer diameter - wall thickness) × wall thickness (mm) × length (m) × 0.02491
For example: 114mm (outer diameter) × 4mm (wall thickness) × 6m (length)
Calculation: (114-4) × 4 × 6 × 0.02491 = 83.70 (kg)
For 316, 316L, 310S, 309S, etc., ratio = 0.02507

stainless steel rectangular tube
Formula: [(side length + side width) × 2 /3.14-thickness] × thickness (mm) × length (m) × 0.02491
For example: 100mm (side length) × 50mm (side width) × 5mm (thickness) × 6m (length)
Calculation: [(100 + 50) × 2 / 3.14-5] × 5 × 6 × 0.02491 = 67.66 (kg)

Stainless steel square tube
Formula: (side width × 4 / 3.14 thickness) × thickness × length (m) × 0.02491
For example: 50mm (side width) × 5mm (thickness) × 6m (length)
Calculation: (50×4 / 3.14-5)×5×6×0.02491 = 43.86kg


Stainless Steel Plate
Formula: length (m) × width (m) × thickness (mm) × 7.93
For example: 6m (length) × 1.51m (width) × 9.75mm (thickness)
Calculation: 6×1.51×9.75×7.93 = 700.50kg


Stainless Steel Bar

Stainless steel round rod
Formula: diameter (mm) × diameter (mm) × length (m) × 0.00623
For example: Φ20mm (diameter) × 6m (length)
Calculation: 20×20×6×0.00623 = 14.952kg
For 400 series stainless steel, ratio = 0.00609

Stainless steel square rod
Formula: Side width (mm) × Side width (mm) × Length (m) × 0.00793
For example: 50mm (side width) × 6m (length)
Calculation: 50×50×6×0.00793 = 118.95 (kg)

Stainless steel flat steel
Formula: Side width (mm) × thickness (mm) × length (m) × 0.00793
For example: 50mm (side width) × 5.0mm (thickness) × 6m (length)
Calculation: 50×5×6×0.00793 = 11.895 (kg)

Stainless steel hexagonal rod
Formula: diameter*(mm)×diameter*(mm)×length(m)×0.00686
For example: 50mm (diagonal) × 6m (length)
Calculation: 50×50×6×0.00686 = 103.5 (kg)


Stainless Steel Angle Steel

Stainless steel equal leg angle steel
Formula: (side width × 2-thickness) × thickness × length (m) × 0.00793
For example: 50mm (side width) × 5mm (thickness) × 6m (length)
Calculation: (50×2-5)×5×6×0.00793 = 22.60 (kg)

Stainless steel unequal angle steel
Formula: (side width + side width - thickness) × thickness × length (m) × 0.00793
For example: 100mm (side width) × 80mm (side width) × 8 (thickness) × 6m (length)
Calculation: (100 + 80-8) × 8 × 6 × 0.00793 = 65.47 (kg)