A53 A106 Q195 Carbon Seamless Steel Pipe

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

This premium hot expanded seamless Steel Pipe is engineered using advanced thermal expansion technology to deliver superior performance in demanding environments. Unlike traditional methods, this process involves heating the initial billet and then expanding its diameter through controlled mechanical rolling or drawing techniques—resulting in thinner walls with enhanced structural integrity. The outcome? A cost-effective, high-efficiency solution for producing non-standard and specialized large-diameter thin-walled tubes that meet global industrial standards.

The manufacturing begins with a solid billet, which undergoes rotary piercing or pressure perforation to form a hollow preform. This intermediate stage is followed by precise thermal expansion, where heat and mechanical force are applied simultaneously to increase the outer diameter while reducing wall thickness uniformly. This innovative approach not only boosts productivity but also allows customization across a wide range of dimensions—from DN6 (150mm) up to DN36 (900mm)—making it ideal for applications requiring unique configurations beyond standard offerings.

Key specifications include wall thicknesses ranging from 4mm to 40mm, enabling flexibility for low- to medium-pressure fluid transmission systems. Available in multiple international standards such as ASTM, API, EN, DIN, GB, and BS, these pipes ensure compatibility with global engineering practices. Whether used in oil and gas pipelines, heating systems, construction frameworks, or coal gas transport, their robustness and dimensional accuracy make them a trusted choice among engineers and procurement specialists worldwide.

With production capacity reaching 30,000 metric tons per month, this seamless carbon steel tubing offers reliable supply chain support for large-scale projects. Each batch undergoes strict quality control measures to guarantee consistency in surface finish, dimensional precision, and mechanical properties. Surface treatments vary based on client needs—options include black paint, varnish, anti-rust oil, hot galvanizing, cold galvanizing, or 3PE coating—to enhance corrosion resistance and extend service life under harsh conditions.

These hot-expanded seamless pipes are widely utilized in infrastructure development, petrochemical processing, power generation, HVAC systems, and structural supports. Their ability to withstand internal pressure while maintaining lightweight profiles makes them particularly suitable for long-span installations where weight savings directly impact installation efficiency and material costs.

Users consistently praise the balance between affordability and durability offered by this product. Many highlight how the thermal expansion method reduces waste compared to conventional rolling processes, contributing to both economic and environmental benefits. Engineers appreciate the ease of integration into existing designs due to predictable dimensional tolerances and consistent mechanical behavior across batches.

Common inquiries often revolve around suitability for high-pressure environments, available certifications, and customization options. While primarily designed for low-to-medium pressure applications, they can be tailored for specific use cases through material selection and surface treatment enhancements. Certification compliance ensures adherence to international safety protocols, and custom lengths—from 2 meters to 12 meters—are supported upon request, providing maximum adaptability for diverse project requirements.

Product Categories : Steel Pipe > Seamless Steel Pipe