X52 PSL 1

CHEMICAL COMPOSITION
Mass fraction, based upon heat and product analysis a
SEAMLESS PIPE
C Mn P S V Nb Ti
maxb max.b max. max. max. max. max.
0.28 1.20 0.030 0.030 c,d c,d d
WELDED PIPE
0.26 1.20 0.030 0.030 c,d c,d d

 

MECHANICAL REQUIREMENTS
Y.S T.S ELONGATION
Mpa(psi) Mpa(psi)
min min min
360 (52 200) 460 (66 700) 28%

 

  • 0.50% maximum for copper, 0.50% maximum for nickel, 0.50% maximum for chromium, and 0.15% maximum for molybdenum.
  • For each reduction of 0.01% below the specified maximum concetration for carbon, an increase of 0.05% above the specified maximum concentration for manganese is permissible, up to a maximum of 1.65%
  • Unless otherwise agreed, the sum of the niobium and vanadium contents shall be ≤0.06%.
  • The sum of the niobium ,vanadium and titanium concentratons shall be ≤0.06%.
  • Unless otheriwse agreed.
  • Unless otherwise agreed, the sum of niobium, vanadium and titanium concentrations shall be ≤ 0.15%