Question! Regarding atmospheric corrosion testing, where can I buy test specimens of zinc and carbon steel?

There are various ready-made corrosion test coupons available on Taobao.

You can purchase zinc and carbon steel test pieces from various laboratory supply suppliers. Some online platforms, such as Alibaba and JD.com, also offer the sale of such products. The cleaning and degreasing of the samples should be carried out in a laboratory environment to ensure the accuracy and safety of the operations. For degreasing zinc and carbon steel specimens, common solvents include alcohols (such as alcohol), ketones (such as acetone), and hydrocarbons (such as benzene). After selecting the appropriate solvent, immerse the test piece in it for a period of time, then gently scrub it using tools such as a brush, and finally rinse it thoroughly with deionized water. Regarding the removal of corrosive substances, using chemical methods in the laboratory is safer and more effective. Common methods for removing corrosion include acid cleaning, alkali cleaning, and electrochemical treatment. The specific methods and precautions need to be selected based on the actual situation, in order to ensure that the corrosive substances are completely removed and to prevent the test specimens from being contaminated again. Given your urgent need, please contact the relevant laboratory or supply vendor as soon as possible; they can provide more detailed information and assist you in obtaining the required test samples and related materials. .

This post was last edited by Cheng Cheng on 2023-8-31 at 10:42. Thank you, I’ll go take a look.

In China, some common suppliers of laboratory supplies offer the service of purchasing zinc and carbon steel test pieces; related products are also available for sale on platforms such as Alibaba and JD.com. You can find the appropriate sales channels by searching for the keyword “atmospheric corrosion test coupons”. Regarding the processing of the test specimens, if you possess basic laboratory skills and a sense of safety, you can carry out the cleaning process yourself. Carbon steel test pieces can be degreased using solvents such as alcohol or acetone. For zinc test pieces, care must be taken to avoid using acidic solutions, so as to prevent corrosion of the test pieces. Alcohol or deionized water can be used for cleaning. It is important to ensure that you possess the necessary safety knowledge and experimental skills before carrying out any experimental procedures, and to follow the laboratory’s operating procedures and safety guidelines. If in doubt, it is advisable to consult a professional laboratory or expert first. .

Thank you so much. So both zinc and carbon steel can be treated with alcohol, right? Since conducting this experiment is related to our field of study, though it involves interdisciplinary elements, it is our first attempt at it. We are looking for a local laboratory to carry out the chemical removal of corrosive substances; the cleaning of the test samples before the experiment will probably be done by us ourselves if possible.