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Why choosing the right flange material affects pipeline safety
2026-02-16
Flange material plays a key role in ensuring the longevity and safety of the piping system. Despite the apparent simplicity of the design, the flange operates under conditions of constant mechanical loads, pressure and temperature changes. The wrong choice of material can lead to joint deformation or seal failure.
A105 carbon steel is widely used in the oil and gas and power generation industries due to its good mechanical properties and load resistance. For European projects, P245GH material is often used, which meets the requirements of EN standards. In turn, stainless steels 304 and 316L are used in the food, chemical and pharmaceutical industries, where corrosion resistance is important.
One of the common mistakes is using the wrong material in conditions of high humidity or chemical activity. For example, using uncoated regular carbon steel in a corrosive environment can result in accelerated corrosion and leaks.
Modern customers increasingly require material certificates confirming the chemical composition and mechanical properties. This eliminates the risk of using unsuitable raw materials and increases the reliability of the entire system.
Thus, the choice of flange material should be based not only on cost, but also on the actual operating conditions of the pipeline.
