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.​2017-10-18 galvanized-steel-pipe

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.

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About Hunan Prime Steel Pipe Co., Ltd

HUNAN PRIME STEEL PIPE is the export gateway of SHINESTAR HOLDINGS GROUP. We are dedicated in providing and exporting high performance-price ratio welded & seamless steel pipes and fittings covering various steel grades. At Prime Steel Pipe, we believe that honest communication, expertise in our industry, and prompt execution lead to strong long-term relationships. Our professioanl team provides " one-stop procurement" servics to coordinate with your project regulation, site and terrain, and ensure the best quality of products by assigning skillful experts at every stage of production. Our principles is to keep the honesty in mind, to win reputation by trust. We strives to providing quality products, competitive price and value-added services to our clients throughout the world.

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