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CORROSION TESTING

STANDING UP TO ENVIRONMENTAL CONDITIONS

In Zhejiang, China, Zhejiang Guojian Testing Technology Co., Ltd (CCT) provides comprehensive Corrosion Testing services that help determine the resistance of materials to corrosion in different environmental conditions such as humidity, temperature, and saltwater. Our facility offers a wide range of ASTM Corrosion Testing, including the ASTM Salt Spray Test, as well as other corrosion testing services performed according to industry specifications. We also provide Accelerated Intergranular Corrosion Testing to detect corrosion susceptibility within a relatively short period of time. In addition, our Corrosion Testing laboratory is equipped to identify corrodents and environmental factors responsible for corrosion problems in products that are already in service. Our advanced SEM/EDS system enables us to conduct detailed analysis and identification, enhancing our Corrosion Testing capabilities.

CORROSION TESTING METHODS AT Zhejiang Guojian Testing Technology Co., Ltd (CCT)

Zhejiang Guojian Testing Technology Co., Ltd (CCT) ’s corrosion specialists perform Salt Spray Testing, Humidity Testing and many additional corrosion test services according to industry standards:

· Susceptibility to Intergranular Attack in Austenitic Stainless Steels (ASTM A262 Practice A, B, C, E, F)

· Detrimental Intermetallic Phase in Duplex Austenitic/Ferritic Stainless Steels (ASTM A923 Method C)

· Aluminum Exfoliation Test (ASTM G34)

· Pitting and Crevice Corrosion Resistance of Stainless Steels and Related Alloys (ASTM G48 Methods A, B, C, D, E, F)

· Visual Assessment of Exfoliation Corrosion Susceptibility of 5XXX Series Aluminum Alloys (ASSET Test) (ASTM G66-99(2005)e1)

· Susceptibility to Intergranular Corrosion in Wrought, Nickel-Rich, Chromium-Bearing Alloys (ASTM G28 Methods A, B)

· Susceptibility to Intergranular Corrosion of 5XXX Series Aluminum Alloys by Mass Loss After Exposure to Nitric Acid (NAMLT Test) (ASTM G67-04)

· Humidity Test (AMS 2700)

· Passivation Test (ASTM A380ASTM A967 & MIL-STD 753 Methods 102, 103)

· Salt Spray Test / Salt Fog (ASTM B117 Testing, MIL-STD-202, MIL-STD-810, NASM-1312-1)

· Coating Evaluation (Adhesion, Thickness)

· Hydrogen Embrittlement

· Intergranular Oxidation

· Sensitization

 Find out the sample size needed for testing before sending your material.

SEM/EDS Analysis

Zhejiang Guojian Testing Technology Co., Ltd (CCT) 's Laboratory Testing division offers advanced corrosion testing capabilities with the help of an SEM/EDS system. The system provides high-resolution imaging and microanalysis capabilities that are particularly useful for analyzing small areas of interest on samples. Additionally, it can be used to identify the corrosive agent responsible for corrosion deposits.

VALUABLE INFORMATION FOR PRODUCT DEVELOPMENT THROUGH END USE

At Zhejiang Guojian Testing Technology Co., Ltd (CCT) 's Laboratory Testing division, we have cutting-edge corrosion testing capabilities powered by our advanced SEM/EDS system. The system is equipped with high-resolution imaging and microanalysis capabilities that are particularly effective in analyzing small areas of interest on samples. It also facilitates the identification of corrosive agents that are responsible for corrosion deposits.

Zhejiang Guojian Testing Technology Co., Ltd (CCT)  offers testing to provide answers for all your corrosion needs:

· Comparing and selecting appropriate materials

· Evaluating protective treatments

· Estimating the life of products

· Determining if material will meet its intended application

· Identifying corrodents and environmental factors responsible for corrosion attack

· Establishing the root cause of a product failure

TEST METHODS/SPECIFICATIONS

· AMS 5772E-2016

· ASTM A262 Practice A, B, C, E, F **

· ASTM A262-15

· ASTM A923 Methods A, C **

· ASTM A967

· ASTM B117

· ASTM G1

· ASTM G28 Methods A, B

· ASTM G34

· ASTM G48 Methods A, B, C, D, E, F **

· ASTM G111

ABOUT TEST PROCESSES

Salt Spray Test

Zhejiang Guojian Testing Technology Co., Ltd (CCT) 's Salt Spray Test, also known as the ASTM B117 Salt Fog Test, is executed with strict adherence to standardized procedures. The test evaluates the resistance of a material to corrosion by subjecting it to a controlled corrosive environment. The results provide valuable information about the relative corrosion resistance of metal and coated metal specimens. Zhejiang Guojian Testing Technology Co., Ltd (CCT) conducts the test in a salt spray chamber equipped with precise temperature control to ensure accuracy and consistency.

Temperature and Humidity Testing

Zhejiang Guojian Testing Technology Co., Ltd (CCT) offers a reliable environmental testing service with its advanced chamber that can simulate various environmental conditions to test the durability and reliability of products, especially electronic items. The chamber is capable of exposing the products to extreme temperatures and humidity levels, which are controlled within ISO and ASTM testing standards. The temperature range is -65°C to +100°C, while the humidity range is 25% to 98% relative humidity, making it ideal for simulating a damp environment.

Passivation Test

Passivation Testing is a method of assessing the surface of corrosion-resistant steel parts by examining surface passivity. The objective of the passivation process is to eliminate surface contaminants, such as iron particles and exposed sulfides, that may lead to rust, allowing the natural corrosion resistance of stainless steel to be maximized. When examined, materials that have been correctly passivated will exhibit little to no rust. Additionally, the passivation test can be helpful in determining whether treatment or protective coatings are necessary for fabricated steel parts.



Q: What does your company do?
A: We have been focusing on the inspection of parts and Metallic materials for more than 20 years.


Q: What is the price of testing?
A: The specific cost should be quoted according to your sample quantity, test items and test standards. It is convenient for you to leave your contact information, and I will ask the engineer in charge of this field to make a quotation for you.


Q: Where is your company?
A: Our headquarter is in Zhejiang,China, and we have offices all over the country.
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