Tianjin Lefin Industrial Co., Ltd is one of the most experienced manufacturers and suppliers of api 5l ssaw pipe in China. Please feel free to buy high quality api 5l ssaw pipe from our factory. Good service and reasonable price are available.
Basic Information
Standard: API 5L
WALL THICKNESS: X42, X46, X52, X56, X60, X70, X80
SURFACE OF PIPE TREATMENT: 3PE, 3PP, 3LPE, PAINTING, GALVANIZING
ENDS: Plain, Beveled, Grooved
TEST: Chemical Component Analysis; Mechanical Properties; Hydrostatic Test; NDT (non-destructive test: RT, UT)
PACKING: Spiral Pipe Will Normally Shipped By Single Piece
API 5L SSAW PIPE APPLICATION
API 5L SSAW PIPE (spiral submerged arc welded steel pipe) has a wide range of applications, mainly used in the following areas:
- Long distance pipeline
Onshore long distance pipeline:
The API 5L X52 SSAW pipeline is widely used to transport oil and gas onshore over long distances due to its large diameter and high pressure tolerance. This pipeline can meet the needs of large-scale fluid transportation, and can withstand the internal medium pressure and external environmental effects, such as soil pressure, vehicle load, etc., to ensure long-term safe and stable operation of the pipeline.
Subsea pipelines:
The API 5L SSAW pipeline is also suitable for the delivery of offshore oil and gas. By using the appropriate anti-corrosion coating, it can effectively resist seawater corrosion and withstand the high pressure of the deep-sea environment, ensuring safe transportation from the subsea well to the onshore terminal.
- Oil and gas collection and delivery systems
The API 5L X52 SSAW pipeline is capable of adapting to complex terrain and changing operating conditions, such as high temperatures in desert areas, erosion by wind and sand, soil erosion and uneven settlement in swampy areas. Its various specifications, including different wall thicknesses and lengths, can be customized to meet actual collection and delivery needs.
- Storage facilities are connected to pipelines
In oil and gas storage facilities, such as connecting pipes between large tanks and delivery piping systems, API 5L X52 SSAW pipes are a reliable choice. Its good sealing performance prevents oil and gas leakage and ensures the safety of storage facilities. At the same time, the pipe ends can be machined into various shapes for easy connection with storage tanks and other pipe equipment.
- Liquid delivery
Used in water supply, drainage, oil transportation and other liquid transportation fields.
- Gas delivery
Used in gas, steam, liquefied petroleum gas (LPG), natural gas and other gas transportation fields.
- Structural use
Used for piling pipe, bridge, wharf, road, building structure pipe and other structural purposes.
API 5L SSAW steel pipes are widely used in oil, gas and other fluid transportation fields due to their high strength, corrosion resistance, cost effectiveness, and ease of installation and maintenance.
API 5L SSAW PIPE features
- Mechanical Properties:
1. High strength and durability
API 5L SSAW pipes have high strength and durability, and can withstand torsion and bending under high pressure and high temperature environments. It can withstand large external forces, the minimum yield strength is 245 Mpa, the minimum tensile strength is 415 Mpa, and the minimum elongation is 21%.
2. Corrosion resistance
API 5L SSAW pipe has good corrosion resistance, can be used in harsh environments for a long time, and its corrosion resistance meets the requirements of ISO 3183-3 standard.
3. Good weldability
API 5L SSAW Pipe is made of solid material with very good weldability, which can maintain the overall performance of the steel pipe to the greatest extent.
4. Surface treatment
API 5L SSAW pipes can be treated with a variety of surface treatments, including black paint, hot dip galvanizing, phosphating, etc. These treatments improve corrosion resistance, service life and appearance quality of the pipe.
- Cost Effective：SSAW steel pipes are made of narrower hot-rolled sheets/coils, reducing costs.
- Large Diameter：The diameter of spiral welded steel pipes can be large, suitable for conveying a large amount of oil and gas.
- Low Maintenance Costs：Spiral welded pipes have relatively low maintenance costs due to their good corrosion resistance and sealing properties.
- Long Life：Under proper maintenance and operating conditions, the service life of spiral welded pipes can be very long.
- Recyclability：Spiral welded pipes can be recycled at the end of use, reducing environmental impact.
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Environmental Adaptability：
Spiral welded pipes can be used in a variety of environments, including extreme environments such as land, sea and desert.
Manufacturing Process
The SSAW steel pipe manufacturing method winds the steel strip into a spiral shape and then welds the edges together.
- First, the raw materials need to be prepared, including steel coils and welding materials. Generally used steel coil is coke steel, low alloy steel, high strength steel, etc., and welding materials include welding wire and flux.
- Next, the steel coil needs to be further processed, a process called uncoiling. First of all, the wrinkles on the steel coil are flattened by the flattening machine, and then the steel coil is cut into the corresponding length using the plate cutting machine, which is usually from 9 meters to 12 meters.
- Then, the steel plate is formed. In this process, the steel plate is positioned on the forming machine, clamped and bent until it becomes a spiral shape. The whole process requires several steps, one of which is to use a roller to roll the steel plate into a spiral shape while welding the two ends together.
- Then, you need to use welding equipment for welding. Generally, submerged arc welding or double-sided submerged arc welding is used for welding, and the uniformity and stability of the weld should be ensured during welding. After the welding is completed, the weld should be inspected to ensure that the quality of the welding meets the standard. In addition, it is also necessary to carry out rust removal, cleaning and other treatments to ensure that the surface of the pipeline is smooth and does not rust.
- Finally, quality testing, including strength, hardness, toughness and other aspects of the test. All products must undergo thorough quality inspection to ensure compliance with national standards and customer requirements.
In summary, manufacturing API 5L SSAW tubes requires multiple processes, from raw material preparation to finished product preparation, welding, rust removal, cleaning, inspection and other steps, all need to be strictly controlled. Only in this way can we manufacture API 5L SSAW tubes that meet the standards and have high quality.
Summary
API 5L SSAW PIPE is manufactured through a spiral welding process and the pipe is robust, highly corrosion resistant and cost effective. Suitable for long-distance transportation of natural gas, oil, chemicals, water, liquefied gas, etc. It can be used in high temperature, low temperature, high pressure conditions.
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