The ASTM International specifications for steel tubes list standard requirements for boiler and super heater tubes, general service tubes, steel tubes in refinery service, heat exchanger and condenser tubes, mechanical and structural tubing.. Steel Pipes. A53 - A53/A53M-99b - Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and SeamlessChina ASTM A500 Mild Carbon Steel ERW Welded Ms Pipe ASTM A500 mild carbon steel ERW welded ms pipe size 4x4 perforated square tubing 1. we are the specialized supplier of stainless steel materials, can provide the best price! 2. we have more than 22 years experience in exporting products to worldwide countries, can provide the high quality products! 3.
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Jun 06, 2012ASTM A53 can be formed and welded. Pipe sizes are properly designated using the Nominal Pipe Size (NPS). This is the nominal pipe diameter with a scheduled wall thickness (i.e., 4 inch Schedule 40 pipe). ASTM A500 Round . ASTM A500 is a standard specification for cold-formed welded and seamless carbon steel structural tubing in round, square astm a500 round erw ms s355j2 welded steel pipeEN S355J2H Round Steel Pipes Manufacturers. S355J2H astm a500 round erw ms s355j2 welded steel pipeS355J2H structural round steel pipes are widely used for structural and civil engineering and the construction industry. Metline sells over 2000-3000 tons of alloy, carbon and mild steel seamless and welded S355J2H round steel pipes and tubes every year to