API 5L PSL2 ERW steel pipe is one kind of the ERW steel pipes. API PSL2 ERW steel pipes increases the chemical composition, notch toughness, strength and supplemental NDE (nondestructive testing) mandate, behind the material number should take note for delivery condition such as N, M, Q, R, etc. You can check the chemical composition for PSL2 pipe as following
Table 5 . Chemical composition for PSL 2 pipe with t 25,0 mm (0.984 in)
(1) Based upon product analysis. For seamless pipe with t 20,0 mm (0.787 in), the carbon equivalent limits shall be as agreed. The CEIIW limits apply if the carbon mass fraction is greater than 0,12 % and the CEPcm limits apply if the carbon mass fraction is less than or equal to 0,12 %.
(2) For each reduction of 0,01 % below the specified maximum for carbon, an increase of 0,05 % above the specified maximum for manganese is permissible, up to a maximum of 1,65 % for grades W L245 or B, but u L360 or X52; up to a maximum of 1,75 % for grades L360 or X52, but L485 or X70; up to a maximum of 2,00 % for grades W L485 or X70, but u L555 or X80; and up to a maximum of 2,20 % for grades L555 or X80.
(3) Unless otherwise agreed, the sum of the niobium and vanadium concentrations shall be u 0,06 %.
(4) The sum of the niobium, vanadium and titanium concentrations shall be u 0,15 %.
(5) Unless otherwise agreed, 0,50 % maximum for copper, 0,30 % maximum for nickel, 0,30 % maximum for chromium and 0,15 % maximum for molybdenum.
(6) Unless otherwise agreed.
(7) Unless otherwise agreed, the sum of the niobium, vanadium and titanium concentrations shall be u 0,15 %.
(8) Unless otherwise agreed, 0,50 % maximum for copper, 0,50 % maximum for nickel, 0,50 % maximum for chromium and 0,50 % maximum for molybdenum.
(9) Unless otherwise agreed, 0,50 % maximum for copper, 1,00 % maximum for nickel, 0,50 % maximum for chromium and 0,50 % maximum for molybdenum.
(10) 0,004 % maximum for boron.
