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Stainless Steel Thick Wall Pipe

Yunming Metal’s Stainless Steel Thick Wall Pipes are designed for high-pressure, high-strength industrial environments. Available in seamless and welded types for oil, gas, and power industries.

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Product Overview

Yunming Metal’s Stainless Steel Thick Wall Pipes are engineered to handle extreme pressure, high temperatures, and demanding mechanical loads. Manufactured from high-strength stainless steel billets or seamless tubes, these pipes feature increased wall thickness for enhanced durability, making them ideal for heavy-duty industrial applications.

They are widely used in oil and gas, power generation, shipbuilding, and pressure vessel systems where standard wall pipes are insufficient.

Application Areas

  • High-pressure steam and hydraulic systems

  • Oil and gas drilling and transmission pipelines

  • Heavy machinery and mechanical equipment

  • Power plant heat exchangers and boilers

  • Shipbuilding and marine structure reinforcement

  • Pressure vessels, tanks, and structural frameworks

Product Features

  • Extra wall thickness for superior strength and pressure resistance

  • Excellent performance in high-temperature and corrosive environments

  • Available in seamless and welded formats

  • Consistent dimensional accuracy for precision assembly

  • Suitable for cutting, machining, and welding operations

  • Wide range of grades and sizes for industrial customization

Technical Specifications

Item Description
Material Grades 304, 304L, 316, 316L, 321, 310S, 317L, duplex 2205, 2507, etc.
Outer Diameter Range 6mm – 1200mm (approx. 1/4″ – 47-1/4″)
Wall Thickness Range 3mm – 150mm (approx. 1/8″ – 5-29/32″)
Length Standard 6 meters (approx. 19′ 8″) or cut-to-length
Surface Finish Annealed, Pickled, Sandblasted, Polished
Standards ASTM A312, ASTM A358, EN 10216, GB/T 14976, etc.

Manufacturing Process

Our thick wall stainless steel pipes are produced using advanced forming and processing techniques to meet strict strength and dimensional standards:

  1. Selection of premium stainless steel billets or coils

  2. Hot extrusion or cold drawing to desired wall thickness

  3. Precision annealing and straightening

  4. Surface treatment (pickling, polishing, sandblasting)

  5. Dimensional inspection and mechanical testing

  6. Optional NDT (ultrasonic, eddy current) for critical applications

  7. Packing and documentation for industrial delivery

Frequently Asked Questions (FAQ)

Q1: What qualifies a pipe as a “thick wall” pipe?
A1: Generally, when the wall thickness exceeds 3mm (or has a high wall-to-diameter ratio), it is classified as a thick wall pipe, suitable for high-pressure applications.

Q2: Do you offer seamless or welded thick wall pipes?
A2: Yes, we offer both. Seamless pipes are ideal for high-pressure systems, while welded pipes provide cost-effective solutions for structural use.

Q3: What industries commonly use thick wall stainless steel pipes?
A3: Oil and gas, shipbuilding, power generation, mechanical manufacturing, and pressure equipment industries.

Q4: Can I request a specific wall thickness and diameter combination?
A4: Yes, we support full customization based on your drawings or technical specifications.

Q5: How do you ensure product quality for demanding environments?
A5: We perform strict dimensional checks, mechanical testing, and offer NDT such as ultrasonic or eddy current inspection. Third-party inspection is also supported.

Still Have Questions?

Feel free to contact our team for technical support, quotation, or customized solutions. Yunming Metal delivers trusted thick wall pipe products for the most demanding applications.