Salt spray testing has a huge significance in obtaining top-class stainless steel production. In this post, we will explain how the corrosion resistance test can categorize stainless steel samples.

Corrosion resistance test: comparison factor for stainless steel

Stainless steel is preferred for various industrial application due to its numerous properties and especially for its corrosion resistance. The choice of the class must consider several different parameters and corrosion resistance will be one of them.

For many applications, corrosion resistance test is used as a key quality factor when choosing stainless steel material. One of the most popular accelerated corrosion tests is the ‘salt spray test’.

The accelerated laboratory test was invented in the starting of the 20th century. It delivers a controlled corrosive environment and has been utilized to yield relative corrosion resistance data for the metal specimen and coated metals exposed in a salt spray chamber.

To get more details on salt spray chamber and its standards, kindly talk to our experts.

The salt spray (fog) test which complies with ASTM B117 includes atomizing a salt solution and transform it into uniform droplets. This atomized solution is then sprayed on specimens suspended between 15° to 30° angle from the vertical. The salt solution is composed by combining 5ml of NaCl with 95ml of water. The exposure zone of the salt spray chamber is maintained at 35°C. The test is continued for the duration of the determined test period.

What are the benefits of salt spray test?

With time this corrosion testing method achieved lots of popularity. It is because of the numerous advantages it offers.

  • The test is multi-material. You can use a distinct sample at one time.
  • The test duration is shorter compared to the natural environment.
  • There is a limited number of standards dedicated to this technique, so the system is widely known.
  • The results provided by such test are easy to comprehend.

Labtiger offers Korrox III model of salt spray chamber with advanced technical specifications for conducting standardized salt spray test.

Some USP features are as follows:

  • The chamber of the machine has a double wall protection and has glass wool insulation so that any heat loss could be resisted.
  • There is a jar placed outside the machine for the collection of the salt solution.
  • A high-pressure drum is also provided with the machine.
  • The pressure that comes with the instrument has a range of 0 to 30 PSI and has an air regulator along with an air filter.
  • Comes with a digital controller for temperature.
  • The temperature is easily regulated through the touch screen control panel.

For more information on salt spray chamber or any technical guidance, kindly contact our team.