1.Weight of Stainless Steel Pipes & Tubes
OD(mm)-W.T. (mm) x W.T.(mm)x0.02466=Kg.per Mtr.

2.Sheet Width Required for rolled and welded pipes
O.D.(mm) - THK(mm) x 3.14=SheetWidth

3.Weight of Stainless Steel Sheets
Length (mtr.) x Wdth(mtr.) x Thk(mm)x8=Kg Per Sheet

4.Weight of Stainless Steel Circle & Blanks
OD(mm) x OD>(mm) x Thk(mm)/160/1000=Kg Per Pcs.

5.Weight of Stainless Steel Rounds
Dia.(mm)xdia.(mm) x 0.00623=PerMtr.

6.Weight of Stainless Steel Hexagonal Rods
Dia.(mm)xDia.(mm) x 0.00679=PerMtr.

7.Weight of stainless Steel Square Bars
Dia.(mm)xDia.(mm) x 0.00787=PerMtr. 

8.Weight of Carbon Steel Pipes & Tubes
Dia.(mm)-W.T.(mm) XW.T.(mm) x 0.02466=Kg.PerMtr.

9.Weight of Carbon Steel Sheets & Plates
Length (mtr.) x Wdth(mtr.) x Thk(mm) x 7.85=Kg Per Sheet 

10.Weight of Copper Pipes
OD(mm)-W.T. (mm) X W.T.(mm) x 0.0256=Kg.per Mtr.

11.Weight of Lead Pipes(appro.)
OD(mm)-W.T. (mm) XW.T.(mm) x 0.0345=per Mtr. 

12.Weight of Lead Sheets(appro.)
Length (mtr.) XWidth(mtr.) XThk(mm) x 11.2=Kg Per Sheet 

13.Weight of Alluminium Pipes(appro.)
OD(mm)-W.T. (mm) XW.T.(mm) x 0.0082=Kg per Mtr. 

14.Weight of Alluminium Sheets(appro.)
Length (mtr.) X Width(mtr.) X Thk(mm) x 2.66=Kg Per Sheet

Tensile Strength Conversion Table 
1. Kg/mm2 x 9.81 = N/mm2=MPa
2. PSi x 0.0007 = Kg/mm2
3. KSi x 1000 = PSi
4. Kg/mm2 x 1.422 = KSi