What is EN 10025 S460QL high strength steel equivalent European standard

Q345E steel plate is a low-alloy high-strength steel plate with good low-temperature impact performance. The steel grade is composed of three parts: Q (Qufu in Chinese spelling) representing yield strength, yield strength value, and quality grade symbol. EN 10025 S460QL high strength steel, Among them: Q represents the yield strength; 345 represents the yield strength value, unit MPa; E represents the grade (passed -40 degrees impact test).

The strengthening mechanisms in metals mainly include solid solution strengthening, dislocation strengthening, fine grain strengthening, and second phase (precipitation and dispersion) strengthening. Alloying elements have the most significant strengthening effect on steel in the quenched and tempered state, because it makes full use of all four strengthening mechanisms. Martensite is formed during quenching, and carbides are precipitated during tempering, resulting in a strong second phase strengthening and greatly improving toughness. Therefore, obtaining martensite and tempering it is the most economical and effective comprehensive strengthening method for EN 10025 S460QL high strength steel.

EN 10025 S460QL high strength steel, The wear-resistant steel plate adopts the open arc self-protection automatic surfacing process, and the composite-layer is a high-alloy wear-resistant layer with high hardness and high wear resistance on the surface of the ordinary steel plate or stainless steel plate. The wear-resistant steel plate has bimetal performance. That is, the high wear resistance of the working layer and the high plastic toughness of the base layer provide convenient mechanical connection and welding rod connection conditions for industrial applications, and can realize processing such as reeling, welding, plasma cutting, and mechanical connection.

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