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Home Products Steel Pipes & Tubes M.S. Pipes International Standard ISO 65:1981 Tolerances

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International Standard ISO 65:1981 Tolerances
Tolerances
Outside diameter                as per the table                                   
Thickness                          as per the following
Light Series 1                       + No Limit, -12.5% 
Light Series 2                       + No Limit, - 8% 
 
Medium Series + No limit, -10%
Heavy Series + No limit, 10%
   
Weight as per the following
Light Series 1          
   
For Single tube ± 10%
For 10 tonne load ± 7.5%
   
Light Series 2  
   
For single tube ± 10%, - 8%
For 10 tonne load ± 5%
   
Medium & Heavy series  
For single tube ± 10%
For 10 tonne load ± 7.5%
 
Mechanical Properties
Tensil strength                     320 to 520 N / mm
% elongation                         15%
 
Chemical Properties
Phosphorus                           0.06% (Max)  
Sulphur                                  0.06% (Max)
 
Leak Tightness Test
100% hydro testing at a pressure of 50 bar or online eddy current testing.
 

Tolerance on outside Diameter, Wall Thickness, Weight & Length of Pipe

ASTM Std. A53 Welded Steel Pipes and Seamless Steel Pipes
Available Sizes ( Dimensions and Weights)

NPS Designator Outside Diameter Wall thickness Weight Class Schedule No. Weight
In mm In mm Lb / ft Kg/ft Kg/m
8 8.625 219.1 0.188 4.78 - - 16.94 7.69 25.26
0.203 5.16 - - 18.26 8.29 27.22
0.219 5.56 - - 19.66 8.93 29.28
0.250 6.35 - 20 22.36 10.15 33.31
0.277 7.04 - 30 24.70 11.21 36.31
0.312 7.92 - - 27.70 12.58 41.24
0.322 8.18 STD 40 28.55 12.96 42.55
0.344 8.74 - - 30.42 13.81 45.34
0.375 9.52 - - 33.04 15.00 49.20
0.406 10.31 - 60 35.64 16.18 53.08
0.438 11.13 - - 38.30 17.39 57.08
0.500 12.70 XS 80 43.39 19.70 64.64
0.594 15.09 - 100 50.95 23.13 75.92
0.719 18.26 - 120 60.71 27.56 90.44
0.812 20.62 - 140 67.76 30.76 100.92
0.875 22.22 XXS - 72.42 32.88 107.88
0.906 23.01 - 160 74.69 33.91 111.27
Product Range
STEEL PIPES & TUBES
GI Pipes | Galvanized Pipes & Tubes| Pre Galvanized Pipes & Tubes | ERW Hot Dipped Galvanized Pipes | ERW Pipes & Tubes | M.S. Pipes| Black Steel Pipes & Tubes |
Conduit Pipes & Tubes

STRUCTURAL STEEL PIPES & TUBES
Square Steel Pipes | Scaffolding Pipes & Tubes | Rectangular Pipes & Tubes | Hollow Sections

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Corporate Office (Head Office)

G-55,Masjid Moth,
Greater Kailash-III.
New Delhi-110048 (INDIA)

+91-11-41637397, +91-11-29221350

DIRECTOR
Sushil Goyal: +91-9810004581

 

 

Works

A-48/9,Site-IV, Industrial Area,
Sahibabad.
Ghaziabad, UP (INDIA)

+91-120-2896306,  +91-120-2896302