ASTM B117 Recognised Salt Spray Test on Fastener Coatings

ASTM B117 Recognised Salt Spray Test on Fastener Coatings

The metal fasteners are extensively used in the industries for the purpose of fastening of critical parts to a fixture. A fastener is a device that is used for joining two different component and stop their relative motion. There are different types so fasteners used for different types of purposes. Normally a fastener is used for creation of a no permanent. Unlike welding, the joints created through fasteners can be easily dismantled by dismantling the fasteners. These fasteners are used in many industries for the purpose of operation and safety. Now the problem with the fasteners is that they are used in an environment that can be sometimes very corrosive. The corrosive environment can lead to decay if the materials of fasteners and hence can cause the failure of the fasteners. To prevent the decay of the fasteners, the manufacturers must test the ability of the materials to withstand the corrosive factors when they are subjected to such environments. If proper testing is not done and bad quality fasteners are used industries, it can cause serious and fatal accidents. One of the best ways to assess, the ability of the materials to resist corrosion in a corrosive environment is to conduct the salt spray test which can be conducted in a salt spray chamber.

The salt spray test is a standardised corrosion test method to check corrosion resistance of materials and surface coatings. The materials used for testing are usually metals such as ceramics, polymers etc. and are finished with surface coatings. Salt spray test is a corrosion test that produces a corrosive attack to coated samples to evaluate the suitability of the coating to be used as a protective finish. The appearance of corrosion products is measured for a pre-determined period of time. Test duration depends on the corrosion resistance of the coating. The more corrosion resistant the coating is, the longer the period of testing prior to the appearance of corrosion. Salt Spray Corrosion Chamber is used to test the corrosion resistance of the coating.

Recognised by ASTM B117, salt spray test adheres to an international salt spray standard. Other standards are ASTM G85, JIS Z 2371 and ISO9227. Salt spray testing is more popular due to its inexpensive, repeatable, quick and well standardised nature. Now a days, most salt spray chambers used widely does not predict the corrosion resistance of a coating, but to maintain coating processes like painting and pre-treatment, galvanizing, electroplating etc.For instance, pre-treated and painted components should pass 96 hours of neutral salt spray that are accepted for production.Failure to meet the requirement shows instability in the chemical process of the pre-treatment and the paint quality (Paint Testing Instruments).
The test is conducted not exclusively to test the erosion obstruction of nuts, tops and fasteners but also keeps the event of consumption, as it were, from metal items to enhance the working existence of the item. The test makes a reasonable examination as far as erosion between jolts and latches are secured with a covered shield with the unprotected ones.

The machine to play out the salt spray test is salt spray tester. Pacorr offers high quality and wide display of chambers used to test erosion opposition capacity of the metals and various other items. Salt Spray Corrosion Chamber is excellent testing equipment to evaluate the rust-proofness of segments. The instrument offered by Pacorr is made from high grade stainless steel and ensures accurate control of testing factors such as temperature and moisture during the test. The device is also available with a highly efficient glass wool insulation that prevents inner heat from escaping and the outer heat from interfering with the test results.

Pacorr’s Salt Spray Chamber Price in India is reasonable and it provides the best services to its clients. Using salt spray testing machine you can perform various corrosion tests such as cyclic corrosion test, salt spray test and condensation water test. With the best commitment to producing high quality products service, the company designs and develops systems that are based on user’ experience and recent industry standards. It can take control of sample timings with 10 pre-set timers. The instrument is also available with an HMI touch control model which makes it very easy to operate with accurate testing results.