Summary Table of Corrosion Testing Methods for Stainless Steel and Nickel-Based Alloys
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Summary Table of Corrosion Testing Methods for Stainless Steel and Nickel-Based Alloys Standard Number, Name of Corrosion Test and Main Components of the Solution, Practical Applications ASTM Methods Stainless Steel 1 GB4334.1-84 1) Corrosion testing method for stainless steel using 10% oxalic acid； 2) After electrolytic erosion with 10% oxalic acid, metallographic analysis is used to determine whether to conduct experiments using other intergranular corrosion methods. Preliminary determination of the method for intergranular corrosion testing of SS: A262-A method 2GB4334.2-841) – Methods for testing corrosion of stainless steel ； 2) Boiling. Test A262-B method 3GB4334.3-841) for determining the preferred method of intergranular corrosion testing of SS; corrosion test method using 65% HNO3 for stainless steel ； 2) 65% HNO3 boils. Preference test for intergranular corrosion testing methods of SS: Method A262-C 4GB4334.4-841) – Testing methods for stainless steel corrosion ； 2) (70% HNO3 + 3% HF), 70°C. Preference test for intergranular corrosion testing methods of SS: Method A262-D 5GB4334.5-841) Corrosion testing method for stainless steel in (H2SO4+CuSO4) ； 2) (Cu + H2SO4 + CuSO4) boils. Intergranular corrosion of SS – Method A262-E 6GB4334.6-841) Corrosion testing method for stainless steel in 5% H2SO4 ； 2) 5% H2SO4, weight loss on the boiling side. SS uniform corrosion 7GB4334.7-841) Test method for stainless steel in ferric chloride solution ； 2) 6% FeCl3, 38~50°C. SS pitting resistance (G48 HJIS G05878 GB4334.8-841): Stainless steel, 42% MgCl2, SCC testing method ； 2) 42% MgCl2 boiling solution. Tendency of SCC in SS 9GB4334.9-841) Method for measuring pitting potential of stainless steel ； 2) Pitting tendency of SS in 3.5% NaCl solution: Method A for Ni and Ni-based alloys – test for intergranular corrosion sensitivity of Ni-based alloys; Method B (Cu + CuSO4 + 16% H2SO4) – test for intergranular corrosion sensitivity of Ni-based alloys; Method A262-E; Method C – hydrochloric acid test for intergranular corrosion sensitivity of Ni-based alloys; Method D – nitric acid test, 65% HNO3 at boiling temperature – test for intergranular corrosion sensitivity of Ni-based alloys; Method A262-C
This table summarizes various corrosion testing methods for stainless steels and nickel-based alloys, as well as their application areas. 1. GB4334.1-84: Erosion test of stainless steel with 10% oxalic acid, used for the preliminary assessment of intergranular corrosion. 2. GB4334.2-84 stainless steel boiling test, used to determine the tendency of intergranular corrosion. 3. The boiling test of stainless steel according to GB4334.3-84 in 65% HNO3 is also used to evaluate the tendency toward intergranular corrosion. 4. GB4334.4-84 specifies a stainless steel corrosion test using 70% nitric acid and a 3% hydrogen fluoride solution at 70°C. 5. GB4334.5-84 Corrosion testing of stainless steel in boiling sulfuric acid and copper sulfate solutions, used to evaluate intergranular corrosion. 6. Uniform corrosion test of GB4334.6-84 stainless steel in boiling 5% H2SO4. 7. Test of pitting resistance of GB4334.7-84 stainless steel in 6% ferric chloride solution. 8. Test of stress corrosion crack (SCC) susceptibility of GB4334.8-84 stainless steel in 42% MgCl2 boiling solution. 9. GB4334.9-84: Measurement of pitting potential for stainless steels, used to assess the tendency to pitting. 10. Several methods for Ni and Ni-based alloys include intergranular corrosion sensitivity tests using solutions such as hydrochloric acid and nitric acid. These methods are mainly applicable to the evaluation of a material’s corrosion resistance in specific chemical environments, helping to select appropriate materials and protective measures. .