A guide to ASTM A53 standard

 ASTM A53 Standard refers to seamless and welded steel tube, about surface treatment, it also refers to black and hot-dipped galvanized steel tube.

The tube categorized in this standard must be open-hearth, basic-oxygen or electric-furnace processed and must have the following chemical requirements: carbon, manganese, phosphorus, sulfur, copper, nickel, chromium, molybdenum, and vanadium, etc.

The tubing shall go through a seamless or welding technique. Tension, bend, and flattening tests shall be performed to make sure that it must adhere to the mechanical properties of the standard.

Hydrostatic test shall be applied, without leakage through the weld seam nor the pipe body. Nondestructive electric test shall be made to make sure that the full volume of the tube must be in accordance with the standard.

The purchaser shall have the right to perform any of the inspections and tests set forth in this specification where deemed necessary to ensure that the tube conforms to the specified requirements.

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