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Decarburization testing from SGS – precise data for characterizing decarburization in ferrous materials.

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When heat treating steel around the austenite eutectoid temperature (1292°F to 1492°F), a phenomenon known as “decarburization” can occur. Decarburization can be intentional and controlled, but it is often undesirable in the steelmaking process as the low-hardness surface ferrite layer can result in, for example, reduced strength, reduced fatigue resistance, reduced wear resistance, and increased crack growth rates. We can provide you with precise decarburization testing at our specialist laboratory, using accredited test specifications.

Why choose decarburization testing from SGS?

There are three general types of decarburization that we are able to characterize in ferrous materials:

  • Type 1 Decarburization: a measurable layer of carbon-free ferrite is present at the surface in this condition (known as ‘complete decarburization’, or 100% loss of carbon)
  • Type 2 Decarburization: more than 50% of the carbon is lost on the surface, but no measureable depth of complete decarburization is present in this condition 
  • Type 3 Decarburization: less than 50% of the carbon is lost on the surface, and no measureable depth of complete decarburization is present in this condition

Type 2 and Type 3 decarburization are known as ‘partial decarburization’.

Accurate decarburization testing from a trusted provider of metallurgical services

As a world-leading provider of metallurgical services we offer unrivaled expertise in decarburization testing. Our state-of-the-art laboratory offers comprehensive decarburization testing using accredited test specifications ASTM E1077 and SAE J419.

To discuss your decarburization testing requirements, contact us today.