JIS G3461 Carbon Steel Tubes is used for exchanging heat on the inside and outside of the tube, come i tubi dell'acqua, tubi di fumo, superheater tubes and air preheater tubes of the boiler, e tubi dello scambiatore di calore,condenser tubes and catalyser tubes used in chemical and petroleum industries. It is not applicable to the steel tubes for heating furnace and steel heat exchanger tubes for low temperature service. Grado:G3461 STB340 (STB35), G3461 STB410(STB42), G3461 STB510 (STB52) Outer Dimensions: 19.05mm – 168.3mm Wall Thickness:2.0mm - 14 mm Length: max 19000mm