Alloying is an important measure to improve the corrosion resistance of the alloy. The basic principles: 1) Alloy of specific dielectric has anodic polarization curves in stable passive region; 2) Increase the electrode potential of the alloy matrix, reduce the original electromotive force; 3) Alloy has a single phase structure and it will reduce the number of batteries; 4) The surface of alloy forms a stable surface protective film to improve corrosion resistance; 5) Add alloying elements, produced in one or more of the above-described way.

The design of anti-corrosion alloy should be considered into principles of economy and applicability, which can develop both practical and economical anti-corrosion alloy products. In the design and development stage of anti-corrosion alloy, MaurerLab have formed its own characteristics. The design team proposes component design and test team evaluates the corrosion resistance for products under certain conditions to obtain environmental limit of applied anti-corrosion alloy. According to the test results, design team starts the further correction to continuously improve and achieve the design goal. Product systems of design and development include:

• 3Cr, 5Cr, 9Cr, 13Cr, 15Cr anti-CO₂ corrosion alloy system;
• C90, T95, C110, 80S-110S or 80SS-110SS anti-H₂S corrosion alloy system;
• FeNi-based alloy, Ni-based alloy, alloy 825, alloy G3, alloy 050, alloy C-276 and other anti-CO₂ + H₂S + CL^- anti-corrosion alloy system.