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Special welded steel pipes ( STAS 20-2000 )
   
Shapes sizes and weights according to following table and pictures.
No.
Sizes
Theoretical linear weight
Made :
a(mm)
b(mm)
g(mm)
kg/m
BLC:
BLR:
1
40
30
0.80
0.799

-

Da
2
40
30
0.90
0.899

-

Da
3
40
30
1.00
0.998

-
Da
4
40
30
1.25
1.189

-
Da
5
40
30
1.50
1.474
Da
Da
6
40
30
2.00
1.950
Da
Da
Obs. Theoretical linear weight was calculated considering de steel density being 7.85 kg/dmc and using nominal dimensions without deviation of the sheet base width .
BLC - Cold rolled steel strip.
BLR - Hot rolled steel strip.