Stainless Steel 347/347H Ferrule Fittings

Stainless steel 347 is a columbium with austenitic stainless steel and provides a good corrosion and oxidation resistance. 347 grades have great oxidation compare to grade 321. This alloy can bear an 800 to 1500 degree F and the oxidization and good creep strength property at 1500 degree F. stainless steel 347H has a higher carbon alloy, this carbon alloy increases its tolerate capacity. It works up to 1000 degree F and develops creep resistance. Stainless steel 347 and 347H cannot be hard at high temperature and it can be easily welded and fabricated.Stainless steel 347 make chromium carbide precipitation at the temperature 816 degrees C. In hydrocarbon service, the stainless steel 347 and 347H resist to polythionic acid

corrosion cracking stress. 347 and 347H are very easily formed and it is low ductility. Stainless steel 347 and 347H ferrule fitting has a strength, wear, and corrosion-resistant property. Double ferrule fitting required a neutral environment and has a high carbon strength that is carburization and decarburization on protective surroundings. The columbium and tantalum chemical content improve its resist property from corrosion resistance. At high temperature, SS 347 don’t make it hard but after the cooling process it becomes hard.

Stainless steel 347/347H ferrule fitting used in various applications like marine application, in marine used as a equipment in a corrosion area, in fertilizer industry and instrument for phosphoric acid, aerospace and pollution control machines, pulp industry, power plant, chemical industry, and paper industry etc.

Testing and packaging:- hardness test, toughness test, chemical test, impact test, mechanical test, material test, ductility test, eddy current test, etc. and packaging like wooden box, carton box, bundle form, etc.