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What is the ASTM standard for hollow section?
The standards and steel grades for steel hollow profiles include ASTM A500 Gr. B, ASTM A500 Gr. A, ASTM A500 Gr. C, ASTM A53, ASTM A106, etc. We have seamless, ERW, welded, prefabricated, and straight seam submerged arc welded pipelines. They come in categories of circular, square, rectangular, and irregular shapes.