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Materials are carbon steel and carbon-manganese steel, ASTM A178 pipe and tube is to be used in boiler tubes, boiler flues, superheater flues and safe ends. Steel Grades A (low-carbon steel), C (medium-carbon steel), or D (carbon-manganese steel). Manufacturing processes must include heat treatment, welding after cooling.
P009en Electric Resistance-welded Steel Tubes for Boilers
welded tube factory dedicated to high-grade tubes for boilers Low-carbon steel tube 320 A214/SA-214 A178/SA-178-Gr.A 3059-Pt.1-320 ERW boiler tubes have since been increasingly adopted in electric utility thermal power plants as well as industrial thermal power plants.
ASTM A178 Welded Steel Boiler and Superheater Tube
ASTM A178 tubes are a kind of frequently-used tubes in our life, they are mainly used in manufacturing heating pipelines, containers, coal-saving devices, superheaters, arch superheated tube, airway tube etc.
Description of Boiler Tube Grades & Recommended Uses
BOILER TUBE GRADES CARBON STEEL SA178 Carbon steels show mild corrosion resistance and fair strength up to 1000F. However, their usage above 800F must take into account the susceptibility to graphitization. Graphitization has not been a significant problem in thicknesses encountered in boiler tubing. Use of heavy section pipe above 800F, however, is not recommended.
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ASTM A178 Standard specification covers standards for electric-resistance-welded tubes with minimum-wall-thickness made of carbon steel and carbon-manganese steel to be used in boiler tubes, boiler flues, superheater flues, and safe ends.The steel shall be of Grades A (low-carbon steel), C (medium-carbon steel), or D (carbon-manganese steel).
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