1. Glossary
steel; acier
Iron-carbon alloy.
AISI; AISI (American Iron and Steel Institute)
American institute that publishes standards for steels, often used even in Europe. The result is a major simplification of designations: for example, steel X5CrNi18-10 becomes steel 304.
ajour; perforation
Hole cut in the center of a blank or part.
elongation at break; total elongation
Elongation reached when a tensile specimen is broken by removing the elastic part. Symbol A, expressed in %.
allongement réparti; uniform elongation
Elongation corresponding to the onset of diffuse stress, i.e. the peak of the tensile curve representing the force divided by the initial cross-sectional area...
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