They have excellent corrosion resistance, mechanical properties (at ambient as well as low or elevated temperatures), and formability. Type 304 (frequently referred to as 18-8) is the general-purpose stainless steel of the austenitic group with a nominal composition of 18% chromium and 8% nickel.
Are 304 & 316 heat exchangers good for cooling tower water?
Both Types 304 and 316 have been used successfully in cooling tower water situations when the chloride level is relatively low (500 ppm) and the exchangers remain relatively clean, or when corrosion inhibitors have been used in the water treatment program to protect steel heat exchanger tubing and steel piping.
Is 304 stainless steel prone to pitting if exposed to acid halide salts?
Type 304 stainless steel, for example, is susceptible to pitting when exposed to acid halide salts, such as might occur from ammonium chloride formed in crude atmosphere distillation overhead systems and in certain catalytic reformer condensing systems.
What temperature should I anneal 304 & 316?
A full solution anneal at 1850F (1010C) to 1950F (1066C) of individual ¡°U¡± bends is suggested to relieve stress of Type 304 or 316. A stress relief at 1550F (843C) to 1650F (898C) will sensitize these grades and render them prone to polythionic acid attack. However, Types 347 and 321 can be stress relieved at 1650F because they will not sensitize.
After Warranty Service: Video technical support, Online support, Spare parts, Field maintenance and repair service
Local Service?Location: None
After-sales Service Provided: Free spare parts, Field installation, commissioning and training, Field maintenance and repair service, Video technical support, Online support, Engineers available to service machinery overseas
Certification: CE,ISO,SGS
main process: degumming,deacidication,decoloring,deodorizing,dewaxing
plant plate material: Q235 or SUS304
working condition: high temperature high vacuum
accessory machines: steam boiler,cooking water tower
refining method: chemcial or physical refining
working project: Nigeria,Thailand,Congo,Cameroon,Ghana,Uganda
Advantage: high refining rate,low loss consumption
Function: processing any kinds of cooking oil
Quality: high quality crude oil fractionation machine