STEELS TABLE

Product catalog summary

Overview: The document provides detailed information on the mechanical and chemical properties of various steel grades, specifically those used in feedstock tubes subjected to chroming processes. These tubes are manufactured through a cold drawing process to ensure dimensional precision and are available in different delivery conditions to meet specific mechanical property requirements.

Specifications: The standard product is steel grade E355+SR, which is stress-relieved to offer a balance of mechanical properties and rigidity, achieving a minimum impact property of 27 Joules at -20°C.

Chemical Analysis: The document lists the maximum allowable percentages of chemical elements such as Carbon (C), Silicon (Si), Manganese (Mn), Phosphorus (P), Sulfur (S), and minimum Aluminum (Al) for various steel grades under EN 10305-1 and EN 10305-2 norms.

Mechanical Properties: The mechanical properties are detailed for each steel grade under different delivery conditions (+C, +LC, +SR, +A, +N), including tensile strength (Rm), elongation (All.), and yield strength (ReH). For example, E355 under EN 10305-1 has a tensile strength of 640 MPa and elongation of 4% in the +C condition.

Steel Comparison: The document provides a comparison of current steel norms with expired ones across different standards such as UNI, DIN, and AFNOR. For instance, E355 corresponds to Fe490 in UNI norms and St 52 in DIN norms.

Catalog excerpts

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

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STEELS TABLE

STEELS TABLE

Catalog excerpts

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