Carbon Steel Seamless Pipes & Tubes

Product Applications


Chemical Composition & Mechanical Properties - ASTM & API

P - Hydrostatic Test Pressure : D -Specified Outside Diameter (mm);t-Specifled Wall Thickness (mm) : A-Cross Sectional Area (inch/mm) : U- Specified Tensile Stergth (PSl\MPa)
E : ERW ( Electric Resistance Welded) : S- Seamless, SMYS - Specified Min. Yield Strength


E = ERW (Electric Resistance Welded)
S = Seamless ;
YS - Yield Strength

Tolerance on Outside Diameter, Wall Thikness, Weight & Length of Pipe

Tolerance on Outside Diameter/Dimensions/Wall Thickness, Weight & Length of Pipe
Spec Outside Dia. Wall Thikness Weight Length
Pipe Body Pipe End Nominal Avg.(mm) Minimum Maximum
ft mtr ft mtr ft mtr ft mtr
IS : 1914 Pt-IV +0,-1% N.A. +10%,-5% N.A. Tolrence - Upto 9mtr. +3, -0mm
Above 9mtr. +6,-0mm
IS: 2416 Pt-IV ±0.75%(±0.30 mm min.) N.A. +10%,-5% N.A. Tolrence - Upto 9mtr. +3, -0mm
Above 9mtr. +6,-0mm
IS :11714 Pt-III As per Table N.A. +18%,-0 +10%,-0 Tolerance - Below 50 mm OD +3.2,-0mm
50mm OD & Above +4.8, -0mm
BS:3059 Pt-I ±0.75%(±0.30 mm min.) N.A. Upto3.25mm±10%
Over 3.25mm ±7.5%
N.A. Tolerance - Upto 6mtr. +6, -0 mm
Above 6mtr 1.5mm will increase for every 3 mtr increase of length.(12mm max.)
BS:3059 Pt-II ±0.75%(±0.30 mm min.) N.A. ±10%(excluding weld area) N.A.
BS:6323 Pt-V As per Table N.A. Less Than 3mm +10% 3mm & Above +8% N.A. - - - - - 3 - 12
Tolerance - Upto 0.5 mtr.+2,-0mm
0.5 to 2mtr. +3,-0mm ; 2 to 5mtr, +5,-0mm;
5 to 7 mtr. +10, -0mm ; Above 7mtr.as agreed
ASTM- A178 &A214 ±0.15to ±0.38mm N.A. +18%,-0 +10%,-0 Tolerance- Under 50.8mm OD +3,-0mm
50.8 & above +5, -0mm
ASTM- A333 & A334 ±0.15 to ±0.38mm N.A. +18%,-0 +10%,-0 20 6 - - 16 4.88 22 671
40 12 35 10.67 22 6.71 - -