What are the precautions for JIS SM490A plates flame cutting

Low-alloy high-strength steel grades are designed to have quite good notch toughness for their intended structural use. The applicability of the notch toughness of specific grades of low-alloy high-strength steel is either based on existing use experience or combined with the results of the impact test of notched specimens. In order to meet the very strict requirements of certain applications, some JIS SM490A plates, low-alloy high-strength steels produced have excellent notch toughness. For example, controlled hot rolling technology is usually used to produce low-alloy high-strength steel plates for the manufacture of welded line pipes. Such steel pipes need to meet the requirements of relevant standards for notch toughness.

S355NC steel offers excellent bending, flanging, cold-bordering and folding JIS SM490A plates properties in both longitudinal and transverse direction. The bending radii specified below should be observed as minimum values.

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