[ Oil & Gas ] gas industry , notably a WAAM-produced pipeline repair clamp in carbon steel ; and heat sinks , propellors , hollow impellers and pipeline fittings in various grades of stainless steel . The company works in 308L , 308LSi , 316L , 316LSi , ER2205 duplex , ER2209 duplex , 410 and other grades .
[ Oil & Gas ] gas industry , notably a WAAM-produced pipeline repair clamp in carbon steel ; and heat sinks , propellors , hollow impellers and pipeline fittings in various grades of stainless steel . The company works in 308L , 308LSi , 316L , 316LSi , ER2205 duplex , ER2209 duplex , 410 and other grades .
Materials The last 12 months have seen an upsurge in orders for oil & gas components and some innovations in what is considered a fairly conservative market . Duplex pipe has been at the forefront , with a record-breaking project in Oman that installed a total of 120km UNS S31803 line pipe in a 34m gas pipeline , flowlines and manifolds ! Duplex was also used in two orders of pumps delivered by Amarinth to the West Qurna-2 expansion project in Iraq . The first order was for seven super duplex API 610 OH1 pumps for a low shear application ; the second , for three super duplex API 610 OH3 vertical in-line pumps for produced water treatment . Umbilicals have been in great demand , Alleima having supplied them for an offshore project in Brazil . Tubacex has
Alleima manufactures corrosion-resistant OCTG tubes for the oil & gas industry . Photo : Alleima .
positioned itself to supply its products for umbilicals in North Sea fields by setting up TSS Norway . Aker supplied Eni with umbilicals for the Agogo field development located offshore Angola , the tubes being made by Tubacex . OCTG tubes , used in drilling , are in such high demand that Tubacex is building a new tube and thread finishing plant in Abu Dhabi to serve the Middle East . In addition , Alleima received two orders for OCTG tubes in CRAs , the fruit of its partnership with Tenaris . The oil & gas industry has inspired two new alloys in the last year . N ’ GENIUS ,
25 ×
500 µ m
TIG welded tube in alloy 825 CTP under a microscope . Photo : Schoeller Werk .
based in the UK , has rethought the austenitic series in a bid to exceed in strength the traditional 300 series in line-pipe grades and CRA OCTG products . Schoeller Werk has introduced longitudinally welded tubes made of alloy 825 CTP / 2.4861 , a fully austenitic nickel-iron-chromium alloy . It is derived from VDM ® Alloy 825 , with higher molybdenum and copper content . The result is a better PREN , making it more resistant to chloride-induced pitting and crevice corrosion in seawater . CTP stands for Corrosion , Temperature , Pressure .
www . stainless-steel-world . net Stainless Steel World September 2023 19