Steel Pipes in Mining and Energy:Strength for Demanding Environments
Large-diameter steel pipes play a critical role in mineral extraction and energy transportation, with their high-flow capacity and high-strength properties making them particularly suitable for long-distance transportation of slurry or energy media. In the Australian mining sector, Shoulder Pipe serves as the core component of slurry transportation systems, specifically designed to withstand the erosion and corrosion caused by high-pressure slurry. These pipes must efficiently and safely transport highly abrasive mineral slurry to processing plants or ports, requiring a design that balances structural strength with wear resistance. Welding processes are critical to ensuring pipeline reliability and must strictly adhere to Australian Standard AS/NZS 2885.2. This requires precise machining of the weld joint prior to welding, multi-layer, multi-pass welding with precise control of interlayer temperatures, and post-weld non-destructive testing (such as radiographic or ultrasonic testing). Welders must also hold AS/NZS 1554 certification to ensure that welds are defect-free under dynamic loads and meet hardness requirements. In the energy sector, large-diameter steel pipes are equally indispensable, widely used in the construction of high-pressure natural gas trunk lines and power transmission channels for renewable energy (such as large-scale solar power plants), providing a robust physical foundation for interregional energy allocation.
