The S275N steel steel measurement chart

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SM490A steel plate is a low-alloy high-strength steel. It is a structural steel produced in accordance with Japanese standard JIS G3106. Its strength σb is 490MPa. It is mainly used for buildings, bridges, ships, rail vehicles, petroleum storage tanks, containers and other buildings that require advanced weldability. S275N steel, JIS SM490A steel sheet delivery status: steel plates with a thickness of <80mm, the delivery state is hot-rolled; steel plates with a thickness of ≥80mm, the delivery state is normalized condition.

"A283C is same as A283 Gr C, A283 grade C. A283C plate technical parameters: A283C plate chemical composition - max. 0.24% carbon, max. 0.40% silicon, max. 0.90% manganese, max. 0.035% phosphorus, max. 0.040% sulphuric, and min. 0.20% Cu. A283C plate mechanical properties: min. yield strength is 205 MPa, tensile strength is 380-515MPa, min. elongation is 22% in 8"" and 25% in 2"". Tolerance of A283C plate is subject to ASTM A6. The density of S275N steel, A283C plate is 7.85g/cm3."

At present, the cutting thickness limit of laser cutting is 20 mm. However, it should be noted that oxygen will be added into the laser beam to cut 20 mm thick S275N steel steel plate, which will form a thin oxide film on the cutting surface, which may affect the cutting quality, Therefore, attention should be paid to this point to avoid problems.

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