High Strength, High Precision, High Reliability ASTM A179 Seamless Steel Pipe 8" Sch 60

High Strength, High Precision, High Reliability ASTM A179 Seamless Steel Pipe 8" Sch 60

1. Product Description

A Seamless Steel Pipe is manufactured from a solid billet through processes like piercing, hot rolling, or cold drawing/rolling, resulting in a tubular product with no welded seam. Its seamless, hollow cross-section allows it to withstand higher pressures, offering superior strength, excellent homogeneity, and unmatched reliability. It serves as a critical foundational material for fluid conveyance, structural components, and applications in high-temperature, high-pressure, and harsh environments, widely used in heavy industries like energy, chemical processing, and machinery manufacturing.

2. Key Product Parameters

• Standard: ASTM A106/A53, API 5L, ASTM A179/A192/A213, GB/T 8162, GB/T 8163, GB 5310, EN 10210, EN 10216, etc.

• Material/Grade: 20#, 45#, Q345B, A106 Gr.B, API 5L Gr.B, P91, P92, 304, 316L, etc.

• Size Range:

  • Outer Diameter (OD): 6mm - 1000mm (or larger, depending on process)

  • Wall Thickness (WT): 1mm - 100mm (Sch 5S ~ Sch XXS)

  • Length: Typically 6m - 12.5m, can be cut to length.

• Manufacturing Process: Hot-rolled, Cold-drawn/Cold-rolled.

• Mechanical Properties: Tensile strength, yield strength, elongation, etc., comply with the relevant standard specifications.

• Surface Treatment: Black paint/Bare pipe, sandblasted, oiled, galvanized (in some cases).

3. Product Applications

• Energy Sector: Oil and gas transmission pipelines, oil field drilling pipes (casing, tubing), boiler superheater & reheater tubes, main steam pipes in power plants.

• Chemical Industry: Piping for high-temperature & high-pressure reactors, heat exchanger tubes, pipes for conveying corrosive media.

• Machinery Manufacturing: Cylinder barrels for hydraulic and pneumatic systems, bearing sleeves, precision structural tubing for various machinery.

• Automotive Industry: Automotive drive shafts, chassis suspension system components.

• Construction Structures: High-strength structural tubing for buildings (e.g., load-bearing columns for stadiums, bridges).

• Others: High-pressure gas cylinders, military products.

4. Product Advantages

• Extremely High Pressure Resistance: The seamless structure eliminates the weak point of a weld, allowing it to uniformly withstand higher internal and external pressure.

• Lighter Weight: Offers comparable pressure resistance to some solid parts while being lighter, saving material and transportation costs.

• Excellent Cross-Section Homogeneity: Hot rolling or cold drawing processes ensure highly consistent wall thickness around the circumference.

• Diverse Material Options: Available in various materials from carbon steel, alloy steel to stainless steel, meeting the needs of different media and environments.

• Mature Process & High Reliability: As a classic industrial product, its performance is long-proven with an excellent safety record.

Specification

FAQ

1. Are you trading company or manufacturer ?

We are manufacturer ,You can see the Alibaba certification.

2. How long is your delivery time?

Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

3. Do you provide samples ? is it free or extra ?

Yes, we could offer the sample for free charge but need pay the cost of freight.

4. What is your terms of payment ?

Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.