Due to the very large number of tests offered, descriptions of those most commonly requested have been gathered into the following groups:

ASTM E646 – Tensile Strain-Hardening Exponents (n-Values) of Metallic Sheet Metals

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ASTM E646 testing covers the determination of the tensile stress-strain response of metallic sheet materials in the plastic region prior to the onset of necking.

The results from this test are useful for estimating the strain at the onset of necking in a uniaxial tension test.

Please email or call (304) 547-5800 for information regarding test procedures, results, specimen information, pricing or any other ASTM E646 questions you may have.

Reference: ASTM E646 – Standard Test Method for Tensile Strain-Hardening Exponents (n-Values) of Metallic Sheet Materials