As one of the best astm a199 alloy steel tube manufacturers and suppliers,Website:http://www.worldironsteel.com, and equipped with one of the well-known astm a199 alloy steel tube brands and productive factory and company, World Iron & Steel Co.,Ltd is always at your service.ASM A199 Specification for Seamless Cold-Drawn Intermediate Alloy-Steel Heat-Exchanger and Condenser Tubes.Standard: ASTM A199Materials: T5 T9 T11 T221.1 this specification covers several grades of minimum-wall-thickness,chromium-molybdenum-silicon,seamless,cold-drawn,intermediate alloy steel tubes for heat exchangers, condensers, and similar heat transfer apparatus.1.2 The tubing sizes usually furnished to this specification are 1/8 to3in(3.2 to 76.2mm) in outside diameter, tubing having other dimensions may be furnished provided such tubes comply with all other requirements of this specification.1.3 Mechanical property requirements do not apply to tubing smaller than 1/8 in(3.2mm) in inside diameter or 0.015 in(0.4mm)in thickness.
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