Frequently Asked Questions
EN 10216-2 is a European standard for seamless steel tubes, mainly for pressure applications at elevated temperatures. The materials covered by this standard are mainly alloy and non-alloy steels, which have good heat and temperature resistance and are commonly used in equipment such as boilers, pipelines and heat exchangers. Common steel grades for EN 10216-2 include P235GH, P265GH, 16Mo3 and 10CrMo9-10, which vary in chemical composition and mechanical properties depending on the specific application requirements.
Carbon steel is classified into three types based on carbon content:
- Low Carbon Steel: Carbon content less than 0.25%.
- Medium Carbon Steel: Carbon content between 0.25% and 0.6%.
- High Carbon Steel: Carbon content greater than 0.6%.
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In the American ASTM specification, the common standard for alloy steel seamless pipes is ASTM A335, which covers a variety of ferritic alloy steel pipes for high-temperature applications. Common steel grades include P5, P9, P11, P22, P91, etc.
The EN 10216-2 standard has a wide range of wall thicknesses, depending on the specific application and the outer diameter of the pipe, generally ranging from a few millimeters to tens of millimeters, suitable for use under different pressure and temperature conditions.