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About us
Tianjin lefin Industrial
TIANJIN LEFIN STEEL GROUP containing Tianjin lefin Industrial Co.,Ltd. 、Tianjin lefin steel import & export Co.,Ltd and Tianjin Shengqifeng International Trading Co., Ltd. -
Products
Steel Pipe Processing
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard -
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Service Capability
Guarantee Quality
Our steel pipes are suitable for oil, natural gas, shipbuilding, chemical industry, water conservancy, electrical, steel structure, construction and other related fields.
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard
Has rich experience in steel pipe processing, can be customized according to customer requirements according to the drawing and sample processing, assist in the development of new products.
PRODUCTS CENTER
Product Description
Basic Information
API5L PSL2 LSAW PIPE
Grades: Grade A, Grade B, A25, X42, X46, X52, X56, X60, X65, X70,X80M,X90M,X100M,X120M
Product Specification Level: PSL1, PSL2
Outer Diameter Range: 1/2" to 2", 3", 4", 6", 8", 10", 12",16 inches, 18 inches, 20 inches, 24 inches up to 40 inches.
Thickness Schedule: SCH 10. SCH 20, SCH 40, SCH STD, SCH 80, SCH XS, to SCH 160
Manufacturing Types: LSAW
Ends Type: Beveled ends, Plain ends.
Surface Treatment: Bare, Varnished, Black Painting, FBE, 3PE (3LPE), 3PP, CWC (Concrete Weight Coated) CRA Clad or Lined.
Chemical Composition
| Grade | Chemical composition analysis of psl2 steel pipe t≤25mm | ||||
| Cb | Si | Mn | P | S | |
| Seamless pipe and welded pipe | |||||
| L245R/BR | 0.24 | 0.40 | 1.20 | 0.025 | 0.015 |
| L290R/X42R | 0.24 | 0.40 | 1.20 | 0.025 | 0.015 |
| L245N/BN | 0.24 | 0.40 | 1.20 | 0.025 | 0.015 |
| L290N/X42N | 0.24 | 0.40 | 1.20 | 0.025 | 0.015 |
| L320N/X46N | 0.24 | 0.40 | 1.40 | 0.025 | 0.015 |
| L360N/X52N | 0.24 | 0.45 | 1.40 | 0.025 | 0.015 |
| L390N/X56N | 0.24 | 0.45 | 1.40 | 0.025 | 0.015 |
| L415N/X60N | 0.24f | 0.45 | 1.40f | 0.025 | 0.015 |
| L245Q/BQ | 0.18 | 0.45f | 1.40 | 0.025 | 0.015 |
| L290Q/X42Q | 0.18 | 0.45 | 1.40 | 0.025 | 0.015 |
| L320Q/X46Q | 0.18 | 0.45 | 1.40 | 0.025 | 0.015 |
| L360Q/X52Q | 0.18 | 0.45 | 1.50 | 0.025 | 0.015 |
| L390Q/X56Q | 0.18 | 0.45 | 1.50 | 0.025 | 0.015 |
| L415Q/X60Q | 0.18f | 0.45f | 1.70f | 0.025 | 0.015 |
| L450Q/X65Q | 0.18f | 0.45f | 1.70f | 0.025 | 0.015 |
| L485Q/X70Q | 0.18f | 0.45f | 1.80f | 0.025 | 0.015 |
| L555Q/X80Q | 0.18f | 0.45f | 1.90f | 0.025 | 0.015 |
| L625Q/X90Q | 0.16f | 0.45f | 1.90 | 0.020 | 0.010 |
| L690Q/X100Q | 0.16f | 0.45f | 1.90 | 0.020 | 0.010 |
| welded pipe | |||||
| L245M/BM | 0.22 | 0.45 | 1.20 | 0.025 | 0.015 |
| L290M/X42M | 0.22 | 0.45 | 1.30 | 0.025 | 0.015 |
| L320M/X46M | 0.22 | 0.45 | 1.30 | 0.025 | 0.015 |
| L360M/X52M | 0.22 | 0.45 | 1.40 | 0.025 | 0.015 |
| L390M/X56M | 0.22 | 0.45 | 1.40 | 0.025 | 0.015 |
| L415M/X60M | 0.12f | 0.45f | 1.60f | 0.025 | 0.015 |
| L450M/X65M | 0.12f | 0.45f | 1.60f | 0.025 | 0.015 |
| L485M/X70M | 0.12f | 0.45f | 1.70f | 0.025 | 0.015 |
| L555M/X80M | 0.12f | 0.45f | 1.85f | 0.025 | 0.015 |
| L625M/X90M | 0.10 | 0.55f | 2.10f | 0.020 | 0.010 |
| L690M/X100M | 0.10 | 0.55f | 2.10f | 0.020 | 0.010 |
| L830M/X120M | 0.10 | 0.55f | 2.10f | 0.020 | 0.010 |
| f.Unless otherwise agreed. | |||||
Physical Requirements
| Grade | Seamless pipe and welded pipe | ||||
| Yield strength Rt0,5 MPa(psi) | Tensile strength Rm Mpa(psi) | Yield ratio Rt0,5/Rm | |||
| MIN | MAX | MIN | MAX | MAX | |
| L245R/BR L245N/BN L245Q/BQ L245M/BM | 245 (35,500) | 450 (65,300) | 415 (60,200) | 655 (95,000) | 0.93 |
| L290R/X42R L290N/X42N L290Q/X42Q L290M/X42M | 290 (42,100) | 495 (71,800) | 415 (60,200) | 0.93 | |
| L320N/X46N L320Q/X46Q L320M/X46M | 320 (46,400) | 525 (76,100) | 435 (63,100) | 655 (95,000) | 0.93 |
| L360N/X52N L360Q/X52Q L360M/X52M | 360 (52,200) | 530 (76,900) | 460 (66,700) | 760 (110,200) | 0.93 |
| L390N/X56N L390Q/X56Q L390M/X56M | 390 (56,600) | 545 (79,000) | 490 (71,100) | 760 (110,200) | 0.93 |
| L415N/X60N L415Q/X60Q L415M/X60M | 415 (60,200) | 565 (81,900) | 520 (75,400) | 760 (110,200) | 0.93 |
| L450Q/X65Q L450M/X65M | 450 (65,300) | 600 (87,000) | 535 (77,600) | 760 (110,200) | 0.93 |
| L485Q/X70Q L485M/X70M | 485 (70,300) | 635 (92,100) | 570 (82,700) | 760 (110,200) | 0.93 |
| L555Q/X80Q L555M/X80M | 555 (80,500) | 705 (102,300) | 625 (90,600) | 825 (119,700) | 0.93 |
| L625M/X90M | 625 (90,600) | 775 (112,400) | 695 (100,800) | 915 (132,700) | 0.95 |
| L625Q/X90Q | 625 (90,600) | 775 (112,400) | 695 (100,800) | 915 (132,700) | 0.97g |
| L690M/X100M | 690b(100,100)b | 840b(121,800)b | 760 (110,200) | 990 (143,600) | 0.97h |
| L690Q/X100Q | 690b(100,100)b | 840b(121,800)b | 760 (110,200) | 990 (143,600) | 0.97h |
| L830M/X120M | 830b(120,400)b | 1050b(152,300)b | 915 (132,700) | 1145 (166,100) | 0.99h |
| b. For grades > L625 or X90, Rp0.2 applies. | |||||
| g. Lower values of Rt0.5/Rm may be specified by agreement. | |||||
| h. For grades > L625 or X90, Rp0.2 /Rm applies. Lower values of Rp0.2 /Rm may be specified by agreement. | |||||
Applications
API 5L PSL2 LSAW PIPE is a high performance pipeline pipe with high strength, high toughness and good corrosion resistance, which is widely used in many fields:
The oil and gas industry
API 5L PSL2 LSAW PIPE can be used to build long distance oil and gas pipelines both onshore and offshore. Its high strength-to-weight ratio enables it to withstand high internal pressures while maintaining a relatively lightweight construction that is easy to transport and install, and cost effective. For example, the X60Q-class tube is suitable for traversing a variety of terrain, including challenging environments such as frozen soils or earthquake-prone areas, and can efficiently transport large quantities of oil or gas over long distances.
2.Offshore platform riser system
In offshore oil and gas production, the line pipe can be used to connect subsea oil and gas Wells to offshore platform riser system. It not only needs to withstand the pressure of internal oil and gas, but also to withstand the static pressure of external sea water and the dynamic load caused by ocean currents and waves, its corrosion resistance is particularly important in the Marine environment, and can effectively resist the corrosion of sea water.
In refineries and chemical plants, API 5L PSL2 LSAW pipes can be used to transport a wide range of hydrocarbon products and process fluids under high pressure and temperature conditions. The pipeline is resistant to hydrogen induced cracking (HIC) and stress corrosion cracking (SCC), making it suitable for acidic service applications dealing with the presence of hydrogen sulfide.
Energy field
As the world transitions to clean energy, hydrogen transport infrastructure is becoming increasingly important. The high strength and toughness of API 5L PSL2 LSAW PIPE make it a potential candidate for addressing unique challenges associated with hydrogen transport, such as hydrogen embrittleness.
It can be used for high-pressure power plant boiler pipe system, its excellent mechanical properties and corrosion resistance can meet the high pressure, high temperature working environment requirements, to ensure the stable operation of power generation equipment.
Urban infrastructure
1.Urban gas transmission network
It can be used for urban gas transmission to provide stable gas supply for urban residents and industrial users. Its good sealing and corrosion resistance ensure the safety and reliability of gas during transportation.
2.Water piping
The API 5L PSL2 LSAW PIPE is also an ideal choice for large water projects that require high pressure piping. Its durability and corrosion resistance make it suitable for long-term use in water supply systems, ensuring a reliable water supply to urban areas and industrial facilities.
Address: Hengtai Road,Daqiuzhuang Town,Jinghai County,Tianjin,China
Mob: +8615122229899(whatspp)
Phone: +86 22 58171905
Fax: +86 22 58171902
E-mail:info@lefinsteel.com
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