Overview of OD 36 Inch Spiral Pipe

The OD 36 Inch Spiral Pipe is a spiral welded steel pipe with an outer diameter of 36 inches (914.4 mm), widely used in oil & gas pipelines, water transmission, structural applications, and foundation piling. It is manufactured using the Spiral Submerged Arc Welding (SSAW) process, ensuring high strength, flexibility, and cost-effectiveness.

Key Features of OD 36 Inch Spiral Pipe

✔ Outer Diameter (OD): 36 inches (914.4 mm)
✔ Manufactured using SSAW (Spiral Submerged Arc Welding) process
✔ Available in different wall thicknesses (from 6 mm to 30 mm or more)
✔ Complies with API 5L, ASTM A252, GB/T9711, and other international standards
✔ Ideal for high-pressure applications in oil & gas, water, and construction industries
✔ Can be coated with 3LPE, FBE, Epoxy Coal Tar, or other anti-corrosion treatments

This guide will cover manufacturing processes, applications, price trends, suppliers, and quality standards for OD 36 Inch Spiral Pipes.

Top OD 36 Inch Spiral Pipe Manufacturers in 2025

Choosing a reliable manufacturer ensures high-quality materials, precise welding, and compliance with global standards. Here are some of the leading OD 36 Inch Spiral Pipe manufacturers:

1. Cangzhou Spiral Steel Pipes Group Co., Ltd

✔ 27 years of experience in steel pipe manufacturing
✔ 13 production lines for Φ219–Φ3500mm spiral welded pipes
✔ Annual production capacity: 400,000 tons
✔ ISO 9001, API 5L, ASTM-certified OD 36 Inch Spiral Pipes
✔ Custom coatings: 3LPE, FBE, and Epoxy Coal Tar

2. Baosteel Group (China)

A major steel producer specializing in high-strength spiral welded pipes for various industries.

3. Tianjin Steel Pipe Co. (China)

A leading supplier of OD 36 Inch Spiral Pipes for oil & gas pipelines and structural applications.

4. Jindal SAW Ltd (India)

Provides high-performance spiral pipes for energy, infrastructure, and industrial projects.

5. Nippon Steel (Japan)

A global leader in high-strength, corrosion-resistant spiral welded pipes for marine, oil & gas, and structural applications.

Each of these manufacturers ensures strict compliance with industry standards, guaranteeing high durability and performance.

OD 36 Inch Spiral Pipe vs Other Pipe Types

Selecting the right pipe type depends on application, cost, and durability. Below is a comparison between OD 36 Inch Spiral Pipe and other steel pipes:

Feature	OD 36 Inch Spiral Pipe	Seamless Steel Pipe (36″)	LSAW Steel Pipe (36″)
Manufacturing Process	SSAW (Spiral Submerged Arc Welding)	No welding (extruded from billets)	Longitudinal Submerged Arc Welding (LSAW)
Strength	High	Very High	Very High
Tensile Strength (MPa)	500 – 760	550+	550+
Diameter Accuracy	Moderate	High	High
Wall Thickness Range	6 mm – 30 mm	5 mm – 20 mm	8 mm – 40 mm
Cost	Cost-effective	Expensive	Higher than Spiral Weld
Best Use Case	Water, oil & gas, construction	High-pressure pipelines	Large-diameter oil & gas pipelines

Why Choose OD 36 Inch Spiral Pipe?

✔ More affordable than seamless and LSAW pipes
✔ Ideal for large-diameter applications
✔ Complies with API 5L, ASTM A252, and GB/T9711 standards
✔ Available in customizable thicknesses and coatings

OD 36 Inch Spiral Pipe Price Per Ton in 2025

The price of OD 36 Inch Spiral Pipes varies based on factors such as pipe diameter, wall thickness, steel grade, and coatings. Below is an estimated pricing chart for 2025:

Wall Thickness (mm)	Steel Grade	Price Per Ton (USD)
6 – 10 mm	API 5L X42 – X65	2,500−2,500 – 2,500−3,500
12 – 18 mm	API 5L X65 – X70	3,000−3,000 – 3,000−4,400
20 – 30 mm	API 5L X70 – X80	4,000−4,000 – 4,000−6,200

Factors Affecting Price:

✔ Pipe Diameter & Wall Thickness – Larger and thicker pipes require more material.
✔ Coating Type – 3LPE, FBE, and other coatings increase costs.
✔ Bulk Orders – Large quantity orders receive better pricing.

Cangzhou Spiral Steel Pipes Group offers high-quality OD 36 Inch Spiral Pipes at competitive prices.

OD 36 Inch Spiral Pipe Manufacturing Process & Quality Control

How Are OD 36 Inch Spiral Pipes Manufactured?

The manufacturing process of OD 36 Inch Spiral Pipes follows strict API 5L, ASTM A252, and GB/T9711 standards to ensure high durability, strength, and reliability. Below is a detailed step-by-step breakdown of the production process:

1. Raw Material Selection

• High-quality steel coils (API 5L, ASTM A252, GB/T9711) are carefully selected, ensuring compliance with mechanical and chemical composition requirements.
• The steel undergoes chemical and mechanical testing to verify yield strength, tensile strength, and impact resistance.

2. Pipe Forming & Spiral Welding

• The steel plates are rolled into a spiral shape using advanced forming machines.
• The edges are submerged arc welded (SAW) using double-sided automatic welding to ensure defect-free, high-strength weld seams.
• This welding process ensures full penetration and structural stability, making it ideal for oil & gas pipelines, water transmission, and piling applications.

3. Heat Treatment & Strength Testing

• Pipes undergo heat treatment to enhance tensile strength and durability.
• Each pipe is tested for bending strength, impact resistance, and structural integrity.

4. Hydrostatic Pressure Testing

• Each pipe undergoes high-pressure hydrostatic testing to verify leak-proof and structural reliability.

5. Ultrasonic & Radiographic Testing

• Non-destructive testing (NDT) is performed to detect internal or external defects in the weld seam.
• Ultrasonic, X-ray, and magnetic particle testing are performed based on pipe grade and project requirements.

6. Beveling & Cutting

• Pipes are cut into required lengths using automated machinery.
• The pipe ends are beveled for easy welding and connection.

7. Coating & Anti-Corrosion Treatment

• Pipes can be coated with 3LPE, FBE, Epoxy Coal Tar, or Polyurethane coatings to enhance corrosion resistance.

8. Final Inspection & Packaging

• Pipes are marked, inspected, and bundled according to customer requirements.
• Each pipe is labeled with batch numbers, specifications, and manufacturer details for full traceability.

Why OD 36 Inch Spiral Pipes Are Preferred?

✔ Designed for high-pressure oil & gas pipeline systems
✔ Manufactured with advanced welding and heat treatment processes
✔ High resistance to bending, compression, and environmental exposure
✔ Custom coatings available to extend lifespan in marine and underground conditions

Cangzhou Spiral Steel Pipes Group Co., Ltd follows strict quality control procedures to ensure high-performance OD 36 Inch Spiral Pipes.

OD 36 Inch Spiral Pipe Applications & Industry Uses

Where Are OD 36 Inch Spiral Pipes Used?

OD 36 Inch Spiral Pipes are widely used in energy, infrastructure, and construction projects that require high-strength, durable pipes.

Industry	Application	Why OD 36 Inch Spiral Pipe?
Oil & Gas Pipelines	Transporting crude oil, natural gas, and refined fuels	High-pressure resistance and compliance with API 5L
Water Transmission	Potable water, sewage, and industrial pipelines	Leak-proof, long lifespan, and corrosion-resistant
Structural Applications	Bridge supports, crane booms, building structures	High-strength, cost-effective, and durable
Pile Foundations	Deep foundation support for bridges and buildings	High load-bearing capacity and seismic resistance
Marine & Offshore	Subsea pipelines, offshore drilling platforms	Resistant to seawater and extreme marine conditions

Why OD 36 Inch Spiral Pipes Are Ideal for Oil & Gas Pipelines?

✔ High resistance to corrosion and environmental exposure
✔ Available in long lengths for seamless pipeline construction
✔ Can be coated with 3LPE or Epoxy Coal Tar for extended durability

Cangzhou Spiral Steel Pipes Group supplies customized OD 36 Inch Spiral Pipes for oil & gas transmission, water projects, structural applications, and deep foundation piling.

OD 36 Inch Spiral Pipe Coating & Anti-Corrosion Treatment

To ensure long-lasting performance, OD 36 Inch Spiral Pipes can be coated with various anti-corrosion treatments.

Coating Type	Corrosion Resistance	Best Applications
3LPE Coating	Very High	Oil & gas pipelines, water transmission
FBE (Fusion Bonded Epoxy) Coating	High	Underground pipelines, structural applications
Epoxy Coal Tar Coating	Excellent	Industrial pipelines & marine piling
Polyurethane Coating	High	Offshore drilling & marine structures

Why Coating is Essential for OD 36 Inch Spiral Pipes?

✔ Prevents rust and corrosion in marine and underground environments
✔ Reduces maintenance costs and extends service life
✔ Enhances resistance against chemicals, seawater, and extreme temperatures

Cangzhou Spiral Steel Pipes Group provides custom coating services to meet industry-specific requirements.

OD 36 Inch Spiral Pipe Suppliers & Exporters

If you are looking to import OD 36 Inch Spiral Pipes, working with a reliable supplier ensures quality, competitive pricing, and timely delivery.

Top Chinese Exporters of OD 36 Inch Spiral Pipes

Company Name	Location	Annual Production Capacity
Cangzhou Spiral Steel Pipes Group Co., Ltd	Hebei, China	400,000 tons
Baosteel Group	Shanghai, China	500,000+ tons
Tianjin Steel Pipe Co.	Tianjin, China	300,000 tons

Why Choose Cangzhou Spiral Steel Pipes Group for OD 36 Inch Spiral Pipes?

✔ 27 years of experience in steel pipe manufacturing
✔ ISO 9001, API 5L, and ASTM-certified products
✔ 13 production lines, covering diameters from 219mm to 3500mm
✔ Custom coatings and anti-corrosion treatments available
✔ Strong export network to North America, Europe, and Asia

For high-quality OD 36 Inch Spiral Pipes, Cangzhou Spiral Steel Pipes Group Co., Ltd is a trusted supplier.

Final Thoughts

For premium quality OD 36 Inch Spiral Pipes, Cangzhou Spiral Steel Pipes Group Co., Ltd is your best choice in 2025!

Need a quote or more technical details? Contact Cangzhou Spiral Steel Pipes Group today!