API 5L GR.B PSL 2

 

CHEMICAL COMPOSITION
Mass fraction, based upon heat and product analysis % maximum CARBON EQUIVALENT a
% MAXIMUM
Cb Si Mnb P S V Nb Ti Other CEIIW CEPcm
SEAMLESS & WELDED PIPES
L245R OR BR 0.24 0.4 1.2 0.025 0.015 c c 0.04 e 0.43 0.25
L245Q OR BQ 0.18 0.45 1.4 0.025 0.015 0.05 0.05 0.04 e 0.43 0.25
WELDED PIPE
L245M OR BM 0.22 0.45 1.2 0.025 0.015 0.05 0.05 0.04 e 0.43 0.25

 

MECHANICAL REQUIREMENTS
Y.S T.S ELONGATION
Mpa(psi) Mpa(psi)
min min min
245(35 500) 450(50 300) f

 

IMPACT TEST
AVG. ABSORBED ENERGY IND. ABSORBED ENERGY
Min.(joules) Min.(joules)
27 20

 

  • Unless otherwise agreed, the sum of th niobium & vanadum concentrations shall be = 0.06%
  • Unless otherwise agreed, 0.50% maximum for copper, 0.30% maximum for nickel, 0.30% maximum for chromium, & 0.15% maximum for molybdenum.