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ASTM G162 Soil Corrosion Specimens

ASTM G162 Soil Corrosion Specimens

Metal test specimens used in standard practice ASTM G162 (Conducting and Evaluating Laboratory Corrosion Tests in Soils). These tests evaluate the corrosive attack of soil on engineering materials such as steel, aluminum, and others. Because this includes so many different possible materials, ASTM G162 does not define a specific shape or size for the test specimen. However, there are some general guidelines:


  • A large surface area that allows maximum corrosion loss per specimen weight
  • The specimen should be thick enough to prevent corrosion penetrating all the way through the specimen
    • Unless the test is studying corrosion penetration, in which case thinner specimens are better
  • When studying large stuctures, use large specimens (as large as practical)
  • When studying small components, the specimen should be close to the actual component size
  • The edges of the specimen should be machined or polished to remove cold working (sheared edges, etc.)
  • Duplicate or triplicate specimens should be used when possible
  • If a galvanic specimen (two or more metals fastened together) is used, then control specimens (each metal individually) should also be evaluated.
  • The specimen should be physically identified in a way that corrosion will not obscure. Some possibilities are notches, holes, or tags.


This allows a wide range of specimen shapes and sizes. Please contact us with detailed information about the desired specimen material, dimensions, and identification method. We look forward to working with you.

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