Low Temperature Steel Pipe
Low Temperature Carbon Steel (LTCS) pipe standards
Low temperature steel pipe is a medium carbon structural steel. It has good mechanical properties, low price and wide supply. So it is widely used. However, its biggest weakness is low hardenability, large cross-section size and relatively high requirements of the workpiece should not be used.
It has been developed chiefly for use in low-temperature equipment and especially for welded pressure vessels. They are low- to medium-carbon (0.20 to 0.30%), high-manganese (0.70 to 1.60%), silicon (0.15 to 0.60%) steels, which have a fine-grain structure with uniform carbide dispersion.
Carbon steel pipes are covered by ASTM A333. The grade nominal wall seamless and welded carbon steel pipes. They can be harnessed at low temperature applications and other services that equire notch toughness. They are seamless, high quality ASTM A333 Class 1 cryogenic tubes, unpaged, with a uniform body. At the same time ,they should also be subjected to minimum corrosion and mechanical stress. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties.
Standard Specifications for LTCS Pipes
- Specifications: ASTM A333/ ASME SA333
- Standard: ASTM, ASME and API.
- Size: 1/2 ” – 24”.
- Schedule: SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All schedules.
- Types: Seamless/ ERW/ Welded/ Fabricated.
- Length: Single Random, Double Random and Required length, Custom size- 12 metres.
- Form: Round Pipes/ Tubes, Square pipes/ tubes, Rectangular pipes/ tubes, Coiled tubes, U Shape, Pan cake coils, Hydraulic tubes
- End: Plain End, Beveled End, Threaded.
- Grades: ASTM A333-Grade1、Grade3、Grade4、Grade6、Grade7、Grade8、Grade9、 Grade10、Grade11.
Application of LTCS Pipes
Low temperature steel pipe is suitable for low temperature environment operation, can withstand a certain low temperature impact.
It is suitable for -45℃~-195℃ grade low-temperature pressure vessel pipe and low-temperature heat exchanger pipe with seamless steel pipe.
- Heat exchangers, chemical containers, pipelines and throughout the food industry.
- It can be used as a fabricated material where high temperature petroleum gases or steam production gases are stored such as pressure vessel
Benefits of LTCS
- Low carbon content eliminates carbon precipitation in the welding process
- used in severe corrosive environments
- Weld annealing only required in high stress applications
The price of low-temperature steel pipe is more affordable, and it is an economic steel. The use of low-temperature steel pipe manufacturing building structure grid, pillar and mechanical support, can reduce weight, save 20 ~ 40% of metal. Steel pipe manufacturing road bridge can not only save steel, simplify the construction, but also greatly reduce the area of coating protective layer, saving investment and maintenance costs.
