Stainless Steel World Magazine March 2024 | Page 17

[ Tubes , Pipes And Fittings ]

[ Tubes , Pipes And Fittings ]

Heat exchanger tubes ready to ship in DMV25.7N size OD 3 / 4 ” x 0,065 ”. Photo : Mannesmann Stainless Tubes .
an integrated petrochemicals plant in Guangdong , China , and why Alleima is boosting its capacity in tubing products , including high-alloy heat exchanger ( HE ) tubes , by building a cold-finishing facility in Zhenjiang , China . MST has just strengthened its position by hiring a new team to cover this market .
Nuclear Nuclear fission has been undergoing reappraisal because of rising gas prices and the need to reduce CO 2 emissions . A recent breakthrough is the Nuscale Small Modular Reactor ( SMR ), a type of pressurized watercooled reactor that can be built in a far shorter time than standard reactors , allowing the nuclear industry to respond more quickly to demand . As MST told me , the SMRs “ require solutions beyond today ’ s feasibility in terms of grades and shapes , through an integration of design and material properties at the highest level .” In 2023 Alleima is supplying 200 km of steam generator tubes for the first SMR , and many more reactors are anticipated in the USA , in association with district heating , desalination , and hydrogen production . Another company that has been active in nuclear energy is Tubacex . EDF was experiencing stress-corrosion-cracking issues in its French nuclear power stations , and Tubacex affiliate IBF ( based in Italy ) supplied forged and machined tubular components , fittings , and connections to overcome the problem .
Heat exchangers A sure path towards decarbonization is to improve the efficiency of HEs . Advanced specialized materials are essential to achieve this goal . Alleima is evolving a programme to allow the most advanced HEs to reach customers in Europe , Africa and the middle East within eight weeks . The programme involves HEs made of duplex grade 2205 , super-duplex 2507 , 254 and Sanicro ® 35 . This last , with its superior strength and corrosion resistance at high temperatures , was applied for the first time in a biogas facility in Texas , in HE tubes that will replace failed 316L tubes .
Tube being extruded at Alleima ’ s site in Sandviken , Sweden .
The facility converts and upgrades biogas into renewable natural gas . The importance of an effective replacement service offering higher-alloy tubes is highlighted by MST ’ s decision to offer an eight-week delivery programme for specialized HE tubing .
New-energy industries
Hydrogen Of all the types of renewable energy , hydrogen is possibly the one that is growing the fastest , as it is important for both power generation ( including energy storage ) and transport .
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