15CrMoG seamless steel pipe is a recyclable material that aligns with China's national environmental protection strategy, promoting energy efficiency and resource conservation. The government actively supports the broader application of 15CrMoG seamless steel pipes, recognizing their importance in sustainable development. Currently, the consumption of 15CrMoG seamless steel pipes in China accounts for only about half of the total steel usage. However, as its applications continue to expand, this provides significant growth opportunities for the industry. According to research from the China National Special Steel Association, the demand for high-pressure 15CrMoG seamless steel tubes is expected to grow at an annual rate of 10-12%.
The weight formula for 15CrMoG seamless steel pipe is: [(outer diameter - wall thickness) × wall thickness] × 0.02466 = kg/meter (weight per meter). This formula is widely used in engineering and construction for accurate material estimation.
15CrMoG is a pearlitic heat-resistant steel known for its high thermal strength (δb ≥ 440MPa) and excellent resistance to oxidation at elevated temperatures. It also exhibits some resistance to hydrogen corrosion. However, due to the high levels of chromium and carbon in the alloy, 15CrMoG has a pronounced hardenability tendency and relatively poor weldability, which requires careful handling during fabrication.
When it comes to dimensions, 15CrMoG seamless steel pipes are manufactured according to strict tolerances. The allowable deviations vary depending on the standardization level:
- **D1**: ±1.5% or a minimum of ±0.75 mm
- **D2**: ±1.0% or a minimum of ±0.50 mm
- **D3**: ±0.75% or a minimum of ±0.30 mm
- **D4**: ±0.50% or a minimum of ±0.10 mm
These standards ensure the quality and consistency of the product, making it suitable for critical industrial applications such as power plants, petrochemical facilities, and high-temperature environments where reliability is essential. With increasing demand and ongoing technological improvements, 15CrMoG seamless steel pipe continues to play a vital role in modern infrastructure and manufacturing.
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