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HARDNESS
Hardness (fr: Dureté): The ability of metal to resist, scratching, indentation, abrasion or cutting. Materials with high resistance are called hard; those with little resistance are called soft.
H-BEAM
H-beam (fr: Poutre en H): A structural element with an H-shaped cross section, primarily used in construction to withstand loads that are, typically, applied laterally to the beam’s axis. Aside from their different weight-withstanding properties, the visual difference between an H–beam and an I-beam consists in the flange, the H-beam’s flange has no inclination and the upper and lower surfaces are parallel.
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