Thick Wall Spiral Pipe
Thick-walled spiral steel pipes refer to spiral steel pipes whose wall thickness is slightly thicker than ordinary spiral steel pipes. Compared with ordinary wall thickness spiral steel pipes, the advantages are: high compressive strength, high impact strength, high safety performance and longer service life.
Production process: Thick-walled spiral steel pipes adopt advanced double-sided submerged arc welding technology, which can achieve high quality and high strength of welds. In addition, the spirally distributed welds help to disperse and release stress, improving the stress resistance of the steel pipe. Compared with traditional straight seam steel pipes, thick-walled spiral steel pipes can more flexibly adjust the diameter and wall thickness of the steel pipe during the production process to adapt to various engineering needs.
Generally, welded spiral steel pipes use high-quality steel as raw materials and have excellent mechanical and chemical properties. The key to the selection of steel lies in its chemical composition and microstructure to ensure that the steel pipe has good tensile strength, yield strength and toughness. In addition, high-quality steel can also provide strong corrosion resistance, ensuring the service life of steel pipes in harsh environments.
Specification For Thick Wall Spiral Pipe
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Production |
SSAW Steel Pipe/ Spiral Seam double-side submerged arc welded steel pipe |
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Standard/Material |
API5LGr.B,X42~X80;ASTMA252 Gr.2,Gr.3;ASTMA53 Gr.BSY/T 5037-2000;SY/T5040-2000;GB/T3091-2008: Q235B,Q345B,20#,16Mn;GB/T9711.1-1997;GB/T9711.2-1999: L245~L555;EN10217-1,EN10219-1,EN10224 L235,L275,L355;EN10025 S235JR,S235JO,S235J2,S275JR,S355JR,S355JO,S355J2,S355K2;DIN 1629 ST37,ST42,ST52 etc. |
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Out Diameter |
219mm-3048mm |
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Wall Thickness |
5.4mm-25.4mm |
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Length |
5.8m-20m,or as customer's requirements. |
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Technique |
SAW welding |
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Usage |
Piling project heat-supply project conveying drinking water,drainage,coal gas,fuel gas,mine slurry and other low & middle pressure fluids API5L Petroleum and natural gas pipeline |
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Package |
Bundle packing or in bulk Bevelled or plain ends as per buyer's request Marks: as per customer's request Surface treatment: with or without varnish/2PP/2PE/3PE/3PP/FBE coating |
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All our products |
Spiral welded steel pipe LSAW steel pipe ERW steel pipe Casing pipe |
Large Diameter High Strength Spiral Steel Pipe
Application Areas
Large-diameter thick-walled spiral steel pipes are widely used in the petroleum and chemical industries. In these industries, pipelines need to withstand high pressure, high temperature and erosion from corrosive media.
The field of natural gas transportation has very high requirements for pipelines, which require pipelines to be resistant to high pressure, low temperature, and corrosion. Large-diameter spiral steel pipes can meet these requirements and are widely used in the field of natural gas transportation.
FAQ
1.Q.How do we trust your company?
A. We specialist in steel business for many years, authenticated by SGS,welcome to visit our factory.
2.Q. Do you have a quality control system?
A.Yes, we have our own quality control laboratory.
3.How thick is spiral welded pipe wall?
Hydrostatically tested pipe lengths range from 30' – 60', wall
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