Home   |  About us   |   Management   |   Products Range & Technical Data  |   Quality   |   Export   |   Network  |   R & D   |    Feedback   |   Contact
   
  Carbon Alloy Steel Seamless Tubes & Pipes
 
   
  Stainless Steel Seamless Tubes & Pipes
 
   
  Stainless Steel WeldedTubes & Pipes
 
   
  U Bend Tubes & Special        Shapes
 
   
  Bright Annealed Tubes
   
   
  Hydraulic Cylinder Tubes
   
   
                  
     
   Stainless Steel Seamless & Welded Tubes & Pipes
                                                                                                                                               
Tolerances

Standard
Size Range OD
OD Tolerance
W.T. Tolerance
Fixed Length Tolerance
ASTM A 123
Seamless
Boiler, Super
Heater, Heat
Exchander &
Condenser Tubes
Under 25.40 mm
25.40-38.10 mm incl.
38.10-50.80 mm excl.
50.80-63.50 mm excl.
63.50-76.20 mm excl.
76.20-101.60 mm incl.
+ / - 0.10 mm
 + / - 0.15 mm
 + / - 0.20 mm
+ / - 0.25 mm
+ / - 0.30 mm
+ / - 0.38 mm
+ 20 / - 0 %
+ 20 / - 0 %
+ 22 / - 0 %
+ 22 / - 0 %
+ 22 / - 0 %
+ 22 / - 0 %
+ 3 / - 0 mm
+ 3 / - 0 mm
+ 3 / - 0 mm
+ 5 / - 0 mm
+ 5 / - 0 mm
+ 5 / - 0 mm
ASTM A 249
Welded Boiler,
Super Heater,
Heat Exchanger &
Condenser
Tubes
Under 25.40 mm
25.40-38.10 mm incl.
38.10-50.80 mm excl.
50.80-63.50 mm excl.
63.50-76.20 mm excl.
76.20-101.60 mm incl.
+ / - 0.10 mm
+ / - 0.15 mm
+ / - 0.20 mm
+ / - 0.25 mm
+ / - 0.30 mm
+ / - 0.38 mm
+ / - 10.0 %
+ / - 10.0 %
+ / - 10.0 %
+ / - 10.0 %
+ / - 10.0 %
+ / - 10.0 %
+ 3 / - 0 mm
+ 3 / - 0 mm
+ 3 / - 0 mm
+ 5 / - 0 mm
+ 5 / - 0 mm
+ 5 / - 0 mm
ASTM A 268
Seamless &
Welded Ferritic
Stainless Steel Tubes
Under 12.70 mm
12.70-38.10 mm excl.
38.10-88.9 mm excl.
88.90-139.70 mm excl.
+ / - 0.13 mm
+ / - 0.13 mm
+ / - 0.25 mm
+ / - 0.38 mm
+ / - 15 %
+ / - 10 %
+ / - 10 %
+ / - 10 %
+ 3 / - 0 mm
+ 3 / - 0 mm
+ 5 / - 0 mm
+ 5 / - 0 mm
ASTM A 269
Seamless &
Welded
Tubes
Under 12.70 mm
12.70-38.10 mm excl.
38.10-88.9 mm excl.
88.90-139.70 mm excl.
139.70-203.70 mm excl.
+ / - 0.13 mm
+ / - 0.13 mm
+ / - 0.25 mm
+ / - 0.38 mm
+ / - 0.76 mm
+ / - 15 %
+ / - 10 %
+ / - 10 %
+ / - 10 %
+ / - 10 %
+ 3.2 / - 0 mm
+ 3.2 / - 0 mm
+ 4.8 / - 0 mm
+ 4.8 / - 0 mm
+ 4.8 / - 0 mm
ASTM A 269
Seamless &
Welded Sanitary
Tubes
Under 25.40 mm
25.40-50.80 mm excl.
50.80-76.20 mm excl.
76.20-101.60 mm excl.
+ / - 0.13 mm
+ / - 0.20 mm
+ / - 0.25 mm
+ / - 0.38 mm
+ / - 12.5 %
+ / - 12.5 %
+ / - 12.5 %
+ / - 12.5 %
+ 3.2 / - 0 mm
+ 3.2 / - 0 mm
+ 3.2 / - 0 mm
+ 3.2 / - 0 mm
ASTM A 269
Seamless &
Welded
Pipes
10.29-48.30 mm excl.
48.30-114.30 mm excl.
114.30-219.08 mm excl.
+ / - 0.40 / - 0.80 mm
+ / - 0.80 / - 0.80 mm
+ / - 1.60 / - 0.80 mm
Min Wall + 12.5 %
Under nominal
Wall Specified
+ / - 12.5 %
+ 6 / - 0 mm
+ 6 / - 0 mm
+ 6 / - 0 mm