EN ISO 6892-1:2016 pdf free

EN ISO 6892-1:2016 pdf free.Metallic materials一Tensile testing一Method of test at room temperature
The test involves straining a test piece by tensile force, generally to fracture, for the determination of one or more of the mechanical properties defined in Clause 3.
The test shall be carried out at room temperature between 10。C and 35 °C, unless otherwise specified.For laboratory environments outside the stated requirement, it is the responsibility of the testing laboratory to assess the impact on testing and or calibration data produced with and for testing machines operated in such environments. When testing and calibration activities are performed outside the recommended temperature limits of 10 °C and 35 °C, the temperature shall be recorded and reported. If significant temperature gradients are present during testing and or calibration,measurement uncertainty may increase and out of tolerance conditions may occur.
Tests carried out under controlled conditions shall be made at a temperature of 23 °C±5 °C.If the determination of the modulus of elasticity is requested in the tensile test, this shall be done in accordance with Annex G.
If the test piece consists of an unmachined length of the product or of an unmachined test bar, the free length between the grips shall be sufficient for gauge marks to be at a reasonable distance from the grips (see Annexes B to E).
As-cast test pieces shall incorporate a transition radius between the gripped ends and the parallel length. The dimensions of this transition radius are important and it is recommended that they be defined in the product standard. The gripped ends may be of any shape to suit the grips of the testing machine provided that they enable the centre of the test piece to coincide with the axis of application of force. The parallel length, Lc shall always be greater than the original gauge length, Lo.
In order to ensure the alignment of the test piece and grip arrangement, a preliminary force may be applied provided it does not exceed a value corresponding to 5 % of the specified or expected yield strength. A correction of the extension should be carried out to take into account the effect of the preliminary force.EN ISO 6892-1 pdf free download.