Hot-Rolled Carbon Steel Seamless Pipes For Oil - Gas Pipelines
Product Overview
Designed specifically for long-distance oil & gas transmission and gathering networks, our hot-rolled carbon steel seamless pipes are produced from high-quality billet through advanced processes such as piercing, continuous rolling, and sizing. With no weld seam and a homogeneous, dense structure, they are the ideal choice for high-pressure, high-reliability pipeline applications.
Key Advantages
High Pressure Resistance- Seamless construction eliminates weld-related weak points, delivering outstanding pressure-bearing performance for high-pressure service.
Uniform Material Properties- Hot rolling refines grain structure and ensures consistent mechanical properties, including excellent low-temperature impact toughness.
Corrosion & Fatigue Resistance- Optimized carbon steel chemistry and strict heat treatment enhance resistance to H₂S, CO₂ corrosion, and cyclic fatigue.
High Dimensional Accuracy- Modern rolling and sizing technologies ensure tight tolerances on OD and wall thickness, facilitating field welding and installation.
Full-Process Inspection- From billet to finished pipe, each piece undergoes ultrasonic, eddy current, hydrostatic, and mechanical/chemical testing to guarantee defect-free delivery.
Main Technical Parameters
|
Parameter |
Range |
|---|---|
|
OD |
12 mm - 914mm |
|
Length |
6 m - 12 m (or custom) |
|
Grade |
Gr. B, X42, X52, X60, X65, X70 |
|
Delivery Condition |
Hot-rolled, normalized, annealed, quenched & tempered |
Typical Applications
Onshore crude oil & natural gas long-distance pipelines
High-pressure city gas networks
Offshore platforms and subsea pipelines (shallow to moderate water depths)
Oilfield flow lines and gathering lines
Pipelines in challenging terrains (permafrost, seismic zones, mountainous areas)
Quality Assurance
Certified with ISO 9001, API Q1, ISO 14001, ISO 45001. Each batch can be supplied with EN 10204 Type 3.1/3.2 inspection certificates. Third-party inspection (BV, SGS, DNV, etc.) is welcome.
Why Choose Us
✅20 years of seamless pipe manufacturing experience serving major oil & gas projects worldwide
✅Advanced hot-rolling lines (ASSEL / MPM / continuous mills)
✅Strong warehousing and global logistics network
✅Technical support for material selection, welding procedures, and field problem-solving
