Large Diameter 800mm 1000mm Carbon Steel SSAW Spiral Welded Pipe

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Product Description

Basic Specifications
Surface TreatmentHot Rolled
UsageOil/Gas Drilling, Fluid Pipe
Section ShapeRound
Thickness3-30 mm
Length12m, 6m, Custom
Special PipeAPI Pipe
StandardJIS, API 5L
CertificateISO9001
Production Capacity9500 Ton/Week
Processing ServiceBending, Welding, Punching, Cutting
Product Description

Spiral Steel Pipe (SSAW) is manufactured by rolling low-carbon structural steel or low-alloy structural steel strip at a specific spiral angle (forming angle) into a tube blank, followed by precision welding of the seam. This process allows for the production of large-diameter pipes from relatively narrow steel strips.

All pipes undergo rigorous hydraulic testing, tensile strength evaluation, and cold bending performance checks to ensure they meet international industrial requirements.

Spiral Steel Pipe
Pipe Details 1
Pipe Details 2
Key Advantages
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Flexible Production: Different diameters can be produced using steel strips of the same width. Large diameter pipes can be efficiently created from narrow strips.
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High Pressure Resistance: Under identical pressure, the stress on a spiral weld is 75% to 90% of that on a straight seam. This allows for thinner walls (10-25% reduction) while maintaining superior strength.
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Precision Engineering: Diameter tolerance is within 0.12%, deflection is less than 1/2000, and ovality is less than 1%, often eliminating the need for secondary sizing.
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Efficient Utilization: Continuous production capability reduces head and tail loss, increasing metal utilization rates by 6% to 8%.
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Mobile Capability: The equipment is lightweight compared to alternatives, allowing for trailer-type mobile units to produce pipes directly at construction sites.

Our production units offer high quality and efficiency. A single spiral welded pipe unit's capacity is equivalent to 5-8 sets of straight seam welded pipe equipment, ensuring high-volume project requirements are met with consistent quality standards.

Production Process
Technical Specifications
StandardAPI 5L, API 5CT, SY/T5037, SY/T5040, GB/T9711.1, GB/T9711.2, X42-X80, L175-L555
Material1.0033, 08F, A53, A106, Q235, Q345b
Out Diameter159mm - 3200mm
Wall Thickness3mm - 30mm
Length5.8m - 11.8m, or Custom Requirement
TechniqueSAW (Submerged Arc Welding), ERW
Usage1. Piling projects
2. Heat-supply projects
3. Water, gas, and mine slurry conveyance
4. Petroleum and natural gas pipelines
5. Chemical industry & Electric power engineering
External CoatingFBE, 2PE, 3PE, 3PP, Varnish
Pipe EndsPlain end, Beveled end, PVC covered, Capped, Threaded & Coupled
Factory & Application

Factory Equipment

Factory Equipment

Application Scenarios

Applications

Package & Shipping

Packaging
Shipping
Frequently Asked Questions (FAQ)
Q1: What is the range of diameters and wall thicknesses available? A: We produce spiral welded pipes with outer diameters ranging from 159mm to 3200mm and wall thicknesses from 3mm to 30mm.
Q2: Which standards do your spiral steel pipes comply with? A: Our products meet various international standards including API 5L, API 5CT, JIS, and GB/T9711.1/2, covering grades from A/B up to X80.
Q3: What are the primary applications for SSAW pipes? A: They are widely used for oil and natural gas pipelines, water drainage, heat-supply projects, piling engineering, and the chemical industry.
Q4: Can you provide external protective coatings? A: Yes, we offer several surface treatments including 2PE, 3PE, 3PP, FBE (Fusion Bonded Epoxy), and varnish/anti-corrosion oil.
Q5: What is the typical delivery time for an order? A: Depending on the specifications and quantity, standard delivery is usually within 7 to 20 days after receipt of deposit or L/C.
Q6: Do you offer processing services like welding or cutting? A: Yes, we provide various value-added services including bending, welding, punching, and precision cutting to meet specific project requirements.

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