What is the difference between 316 and 409 stainless steel?
The 316 also has a rust resistance property which makes it more suitable for certain environments than other gauges of stainless. 409 is a less costly option for stainless steel and a lower grade.
What is 409 grade stainless steel?
Grade 409 stainless steel is a Ferritic steel that offers good mechanical properties and high-temperature corrosion resistance. It is commonly considered as a chromium stainless steel, with applications in exhaust systems of automobiles and applications that demand weldability.
Is 409 stainless steel?
It is one of the most commonly produced and used stainless steel grades. 409 is a ferritic stainless steel with less chromium and very little nickel. It less expensive to produce than 304, but also provides less corrosion resistance. These two alloys the most common stainless steels used for car exhaust systems.
What’s the difference between 409 and 304 stainless steel?
304 is an austenitic stainless steel high in chromium and nickel with very high corrosion resistance. It is one of the most commonly produced and used stainless steel grades. 409 is a ferritic stainless steel with less chromium and very little nickel.
What is the purpose of stainless steel Type 409?
Description Type 409 is a heat resisting ferritic stainless steel providing good oxidation and corrosion resistance compared to carbon steel. This titanium stabilized grade was developed for automotive exhaust systems but its good formability, weldability, and corrosion resistance has led to its use in other applications.
What is the corrosion resistance of grade 409 steel?
However, the corrosion resistance is lower than that of grade 430 steels containing 17% chromium. The surface of grade 409 steels is liable to mild corrosion, which limits the usage of steels for decorative purposes.
What should the temperature be for annealing grade 409 steel?
Heat Treatment. Annealing of grade 409 steels is carried out at temperatures ranging from 790 to 900°C, followed by air-cooling. Thermal treatment does not harden grade 409 steels.
What kind of Filler rods can you use on grade 409 steel?
Although grade 430 and 409 filler rods or electrodes can be used during welding of grade 409 steels, grade 309 electrodes or filler rods are strongly recommended by AS 1554.6.
