X70 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 min. max. max. max. max. max.
0.28e 1.40e 0.030 0.030 f f f
WELDED PIPE
0.26e 1.65e 0.030 0.030 f f f

 

MECHANICAL REQUIREMENTS
Y.S T.S ELONGATION
Mpa(psi) Mpa(psi)
min min min
485(70 300) 570(82 700) f

 

  • 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%
  • Unless otheriwse agreed.
  • Unless otherwise agreed, the sum of niobium, vanadium and titanium concentrations shall be = 0.15%