STEELS TABLE
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STEELS TABLE Mechanical and chemical properties of steel grades, as well as their possible delivery conditions, are according to norm of feedstock tubes subjected to chroming process. Feedstock tubes are manufactured by cold drawing process, which provides needed dimensional precision, while different delivery conditions are foreseen to help reaching various levels of mechanical properties, according to specific needs. Our standard product is in steel grade E355+SR, always ready-on-stock. Thanks to “stress relieved” delivery condition it offers a good compromise of the mechanical properties and the rigidity needed for obtainment of a shaft, reaching in the meanwhile impact properties of a minimum average value of 27 Joule at -20°C*. CHEMICAL ANALYSIS Reference norm EN 10305-1 Steel grade MECHANICAL PROPERTIES Reference norm EN 10305-1 EN 10305-2 ¹ For tubes with outside diameter > 160 mm ReH≥420 Mpa. * For specimen with longitudinal orientation and standard dimension 10x10x55 mm. STEEL COMPARISON Here below are summarized indicative comparisons between expired steels and norms designations respect to current ones. EN 10305-1 E215 E235 E355 AFNOR norms