Tengizchevroil

1. Tengizchevroil Commodity: Pipes Bill Ross Aktau, Kazakhstan 25 September 2012

2. Pipes : Annual Spend • Additional Requirements to Standard Specifications • ASTM A333 Grade 6 Seamless up to 14” NPS • Normalized; NACE MR 0175 / ISO 15156 Certification; • CE = 0.42% max; Carbon (C) content = 0.23% max; Sulphur (S) = 0.010% max; • Phosphorous (P) = 0.020% max; Limits to Niobium (Nb) & Vanadium (V) • Cr, Mo, Ni, Cu, Nb, V shall be determined in chemical analysis and reported • ASTM A333 Grade 6 Welded or ASTM A671 CC 60 Cl.22 16” NPS & Larger only • In addition to above requirements: EFW/SAW; 100% RT; • ASTM A516 Gr. 60 plate shall be vacuum treated normalized; CE(llW) = 0.43%; • S = 0.003% max; P = 0.008% max; Nb + V = 0.020% max; HIC testing required • API 5L X60 PSL 2 Seamless (incl. Annex H and K) • Product Chemistry: C = 0.140% max; P = 0.018% max; Nb = 0.040% max; • Ti = 0.025% max; V = 0.080% max; Nb+Ti+V = 0.120% max; CE(llW) = 0.380% max • Charpy impact testing to -40C; min avg energy value 47 Joules/ 35 Joules min individual • Hardness testing per every 25 joints; Max hardness 250 HV10 • HIC testing per NACE TM0284 using solution A of one pipe from each heat and size • SSC Tests (one per heat) per Annex H and clause H.2h • API 5L X60 PSL 2 Welded (for API 6A 5000/ASME class 2500 larger diameters) • SAW/DSAW only; Same requirements as seamless with slight modifications: C = 0.10%; • Si = 0.35%; S = 0.002%; P = 0.012%; Al = 0.06%; V = 0.040%; Nb+Ti+V = 0.10% • Max hardness 220 HV10 • ASTM A312 316/316L Seamless • Solution heat treated and pickled • Estimated Annual Spend is over $ 200 MM by the Industry