Plain-language definitions of 133 terms used in raw material trade: Incoterms, payment, shipping, customs, quality documents, plastics, metals, chemicals, agriculture and energy.
The basic mechanical properties measured in a tensile test (EN ISO 6892-1, ASTM E8). Yield strength (ReH or Rp0.2, MPa) is the stress at which the material starts to deform permanently and is the basis of design; tensile strength (Rm) is the maximum stress before fracture; elongation (A %) is the stretch up to fracture and indicates formability. For rebar the Rm/ReH ratio and elongation are critical for earthquake resistance (e.g. Rm/Re ≥ 1.15 for B500C).
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