EN 10216 is a European standard specifying requirements for seamless steel tubes used in pressure applications, ensuring safety and reliability across industries. It covers tubes designed for high - temperature, high - pressure, and low - temperature environments, divided into four parts (EN 10216 - 1 to - 4) based on service conditions.
Tubes compliant with EN 10216 are made from diverse materials. Carbon - manganese steels are used for general - purpose applications, balancing cost and strength. Alloy steels, enhanced with elements like chromium, molybdenum, and nickel, are favored for extreme conditions. Chromium improves corrosion resistance, molybdenum boosts creep strength at high temperatures, and nickel enhances toughness in low - temperature scenarios.
Manufacturing adheres to strict European quality norms. Seamless tubes start with steel billets, which are pierced and then shaped through hot - rolling or cold - drawing. Advanced heat - treatment processes, such as normalizing, quenching, and tempering, optimize the tubes' mechanical properties, ensuring they can withstand demanding pressures.
Quality control is rigorous. Chemical analysis verifies material composition, while tensile, impact, and hardness tests assess mechanical performance. Non - destructive testing methods like ultrasonic and radiographic inspection detect internal and surface defects. These tubes are widely used in power generation, oil and gas, and petrochemical industries, playing a crucial role in transporting fluids and gases under pressure.
