Are the calculation formulas for stainless steel products the same? What is the calculation formula for different stainless steel products?

Stainless steel square bar weight (kg)reference formula:

0.00785 × side width × side width × length

Stainless steel hexagonal bar weight (kg) reference formula:

0.0068 × opposite side width × opposite side width × length

Stainless steel angle steel weight (kg)reference formula:

0.00785×(side width + side width – side thickness) × side thickness × length

Stainless steel flat steel weight (kg)

0.00785×thickness×side width×length

Stainless steel plate / steel belt reference formula:

Stainless steel plate weight (kg) = length (m) * width (m) * thickness (mm) * density ρ (g / cm).

Stainless steel round bar / steel wire reference formula:

Stainless steel round bar weight (kg) = (diameter (mm) / 2) * (diameter (mm) / 2) * π * length (m) * density ρ (g / cm) / 1000.

Stainless steel round tube reference formula:

Stainless steel round tube weight (kg) = ((outer diameter (mm) / 2) * (outer diameter (mm) / 2) – (inner diameter (mm) / 2) * (inner diameter (mm) / 2)) * π * Length (m) * density ρ (g / cm) / 1000; ** wall thickness (mm) = (outer diameter (mm) – inner diameter (mm)) / 2.

Stainless steel square tube reference formula: stainless steel square tube weight (kg) = (section length (mm) * 2 – section width (mm) * 2 – wall thickness (mm) * 4) * wall thickness (mm) * length (m) * Density ρ (g/cm) / 1000.