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This document specifies a method for tensile testing of test pieces of foil and strip of metals with a nominal thickness less than 0,200 mm by using computer-controlled testing machines.
The used test pieces according to this document are rectangular (parallel sided strips) and are prepared by cutting. This method is used to determine typically the proof strength, Rp0,2, the tensile strength, Rm, the percentage plastic extension at fracture, Ax mm, (using the automatic determination by the machine) or the (plastic) elongation after fracture, Ax mm, (by manual determination).
NOTE 1 The use of a computer-controlled tensile testing machine is important to apply parameters and fulfil several procedures.
NOTE 2 EN ISO 6892‑1:2019 Annex B specifies test pieces (shape, dimensions, preparation, determination of the original cross-sectional area) for thin products flats between 0,1 mm and 3 mm thickness. EN ISO 6892‑1:2019 Clause B.1 specifies requirements for products of less than 0,5 mm thickness, which can require special precautions.
NOTE 3 This document and EN ISO 6892‑1:2019 Annex B both apply to products of thickness between 0,1 mm and 0,2 mm. For further information, see Clause 5.
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