Table 1: Chemical composition (wt %) of the pipeline.

Steel C (carbon) Mn (Manganese) P (Phosphorus) S (Sulfur) Ni (Nickel) Cr (Chromium)
WPHY-65 ≤0.2 1.00-1.45 ≤0.03 ≤0.01 ≤0.5 ≤0.3