Yield strength (Rp0.2)

The stress at which plastic deformation begins. For steels without a clear yield point it is quoted as Rp0.2 — the stress leaving 0.2 % permanent strain. Design allowables are normally based on yield, not tensile, strength.

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Annealing · Austenite · Bainite · Carbon equivalent (CEV) · Carburizing · Case hardening · Charpy impact test · Cold drawn · Decarburization · Elongation (A) · ESR (electroslag remelting) · Ferrite