carbon schedule 40 seamless steel pipe

Hot Expanded Seamless Steel Pipe – High-Quality Carbon Steel Tubing for Industrial Applications

Discover premium hot expanded seamless steel pipes, engineered for superior performance in demanding environments. These high-density carbon steel tubes are manufactured using advanced thermal expansion techniques that enhance dimensional accuracy while maintaining structural integrity. Ideal for applications requiring large-diameter, thin-walled tubing, this product bridges the gap between standard pipe production and specialized industrial needs.

Key Features:

• OD Range: 6" to 36" (DN15–1200)
• Wall Thickness: 4mm–40mm
• Standards Compliance: ASTM, API, EN, DIN, GB, BS
• Length Customization: 2–12 meters
• Surface Finishes Available: Black paint, anti-rust oil, hot galvanizing, cold galvanizing, 3PE coating

The hot expanding process involves heating a pre-formed seamless tube and then applying controlled mechanical force to expand its diameter—resulting in improved wall uniformity and reduced material waste. Unlike traditional rolling methods, this technique allows manufacturers to produce non-standard sizes efficiently without compromising quality or increasing costs significantly. The resulting steel pipes exhibit enhanced mechanical properties such as tensile strength, ductility, and resistance to internal pressure, making them suitable for critical infrastructure projects worldwide.

This method has evolved from basic billet piercing to modern thermal expansion systems that integrate real-time monitoring of temperature, pressure, and deformation parameters. As a result, the final product meets stringent international standards for consistency, surface finish, and dimensional tolerance. With monthly production capacity reaching up to 30,000 metric tons, these seamless carbon steel pipes are ideal for industries seeking reliable, cost-effective solutions for fluid conveyance, construction, energy transmission, and mechanical frameworks.

Common Use Cases:

• Low-to-medium pressure pipelines for water, gas, and steam distribution
• Oil and natural gas transportation systems
• Structural supports in building frameworks and bridge construction
• Industrial equipment manufacturing where precision tubing is essential
• Heat exchangers and boiler components requiring corrosion-resistant materials

Users across Europe, North America, and Asia have praised the durability and adaptability of these hot-expanded seamless steel pipes. Many report reduced installation time due to fewer joints required, along with lower maintenance costs over the long term. Customers often highlight the consistent wall thickness across batches—a key factor in ensuring system safety under varying pressures and temperatures.

Frequently Asked Questions:

• What makes hot expanded seamless steel pipes different from conventional welded tubes?
• Can custom diameters be produced outside the standard range?
• Are these pipes suitable for cryogenic or high-temperature applications?
• How do I choose the right surface treatment for my environment?
• What certifications ensure compliance with global engineering standards?

Product Categories : Steel Pipe > Seamless Steel Pipe