Weight formulae
Stainless pipes & tubes OD (mm) − W.T. (mm) × W.T. (mm) × 0.02466 = kg per mtr
Sheet width for rolled & welded pipe O.D. (mm) − THK (mm) × 3.14 = sheet width
Stainless sheets Length (mtr) × Width (mtr) × Thk (mm) × 8 = kg per sheet
Circles & blanks OD (mm) × OD (mm) × Thk (mm) / 160 / 1000 = kg per pc
Stainless rounds Dia (mm) × Dia (mm) × 0.00623 = kg per mtr
Hexagonal rods Dia (mm) × Dia (mm) × 0.00679 = kg per mtr
Square bars Dia (mm) × Dia (mm) × 0.00787 = kg per mtr
Carbon steel pipes & tubes Dia − W.T. × W.T. × 0.02466 = kg per mtr
Carbon steel sheets & plates Length × Width × Thk × 7.85 = kg per sheet
Copper pipes OD − W.T. × W.T. × 0.0256 = kg per mtr
Lead pipes (approx.) OD − W.T. × W.T. × 0.0345 = kg per mtr
Lead sheets (approx.) Length × Width × Thk × 11.2 = kg per sheet
Aluminium pipes (approx.) OD − W.T. × W.T. × 0.0082 = kg per mtr
Aluminium sheets (approx.) Length × Width × Thk × 2.66 = kg per sheet
Tensile strength conversions
kg/mm² → N/mm² (MPa) kg/mm² × 9.81
PSI → kg/mm² PSI × 0.0007
KSI → PSI KSI × 1000
kg/mm² → KSI kg/mm² × 1.422
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