Hot Expanded
Seamless Steel Pipe – High-Performance Carbon Steel Tubing for Industrial and Infrastructure Applications Engineered for excellence in demanding environments, this premium hot expanded seamless
Steel Pipe delivers unmatched strength, precision, and cost-effectiveness across global industrial and civil engineering projects. Unlike traditional cold-formed or welded alternatives, our advanced thermal expansion manufacturing process heats solid billets to optimal temperatures before rolling or drawing them into thinner-walled yet highly durable tubing. This innovative technique enhances material utilization, reduces waste, and improves the strength-to-weight ratio—making it an ideal solution for large-diameter applications where structural integrity, dimensional accuracy, and long-term resilience are critical. Key Features: - Wide Outer Diameter Range: 6” to 36” (DN15–DN900), suitable for both standard and non-standard pipeline systems - Flexible Wall Thickness Options: 4mm to 40mm, accommodating low-pressure fluid transport to high-load structural supports - Global Compliance: Meets ASTM A53, API 5L, EN 10216, DIN 2448, GB/T 8163, BS 1387, and other internationally recognized standards - Superior Surface Quality: Consistent roundness, smooth finish, and uniform microstructure for enhanced flow dynamics and corrosion resistance - Customizable Coatings: Available in black paint, anti-rust oil, galvanized (hot or cold), or 3PE lining for extreme environmental protection The production method begins with rotary piercing or pressure perforation of solid carbon steel billets, followed by precise thermal expansion under controlled conditions. This results in pipes with improved mechanical properties, reduced internal stress, and minimized defects—ideal for applications involving high pressure, temperature fluctuations, or aggressive media such as crude oil, natural gas, steam, or saline water. Each batch undergoes comprehensive quality assurance including hydrostatic testing, ultrasonic flaw detection, and chemical composition verification to ensure compliance with ISO, ASME, and JIS specifications. With a monthly output capacity of up to 30,000 metric tons, we support rapid project execution without compromising consistency or safety. This engineered piping solution is especially suited for offshore platforms, petrochemical plants, power generation facilities, and heavy construction sites requiring robust load-bearing frameworks or efficient fluid conveyance systems. Its ability to be tailored in length (up to 12 meters per piece) and surface treatment allows engineers to meet specific site requirements—from coastal salt exposure to arctic climates—while maintaining full regulatory alignment. Common Applications: - Low to medium-pressure pipelines for gas, water, steam, and petroleum products - Structural elements in scaffolding, bridges, and building frameworks - Coal gas distribution networks and district heating systems - Offshore risers, subsea manifolds, and marine infrastructure components - Mounting brackets for industrial machinery and pressure vessels Users consistently report satisfaction due to ease of fabrication, minimal maintenance needs, and exceptional durability over decades of service. Engineers appreciate the flexibility to source custom dimensions quickly while adhering strictly to international codes like ASME B31.3, EN 13480, and API RP 5LW. The product’s eco-conscious design also aligns with modern sustainability goals, offering lower energy consumption during manufacturing compared to conventional methods. Frequently Asked Questions: How long does lead time typically take after order confirmation? Production generally starts within 20 days following deposit or letter of credit at sight. Can I request custom lengths or finishes? Yes—pipes can be cut to lengths up to 12 meters per piece, with options for black coating, varnish, galvanized layers, or multi-layer polyethylene protection based on environmental demands. What tests are performed before shipment? Each lot undergoes hydrostatic pressure testing, ultrasonic inspection for internal defects, and chemical analysis to verify alloy content and compliance with relevant codes. In summary, hot expanded seamless steel pipe represents a strategic blend of innovation, sustainability, and industrial-grade performance. Whether used in energy infrastructure, civil engineering, or heavy machinery support, its adaptability across diverse operational contexts ensures reliable results worldwide. As industries increasingly prioritize efficient materials that meet evolving environmental and safety standards, this product stands out as a forward-looking choice for modern engineering solutions globally.
Product Categories : Steel Pipe > Seamless Steel Pipe
