This European Standard, a part of the BS EN series, specifies the method for tensile testing of metallic materials and defines the mechanical properties. It supersedes BS EN which is withdrawn. .. The European Standard EN “Metallic materials – Tensile testing – Part 1. Buy BS EN Tensile testing of metallic materials. Method of test at ambient temperature from SAI Global.
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EN 10002-1 Tensile Testing Metallic Materials
We recommend that you read and review the standard in full to ensure suitability for the products you wish to test before selecting test equipment. To determine the desired proof strength a line is drawn through the hysteresis loop. These various documents all give guidance of how to estimate uncertainty of measurement based upon an “uncertainty budget” concept.
These recommendations are related to the design, the software of the machine and its validation and to the operating conditions of the tensile test. NOTE If the straight portion of the force extension diagram is not clearly defined, refer to Subscribe to Our Newsletters.
Special precautions shall be taken when straightening the transverse test pieces. Figure 2 – Definitions of upper and lower yield strengths for different types of curves Li ce ns ed C op y: For very thin dn, it is recommended that strips of identical widths should be cut and assembled into a bundle with intermediate layers of a paper which is resistant to the cutting oil.
The determination of a quantitative value is only possible with a known force-extension curve, which implies een quantitative value being dependent on the material.
Typical example of data sets used to determine materials response over the strain rate range specified in EN is shown in Figures J. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Worldwide Standards We can source any standard from anywhere in the world. Verification of extensometers used in uniaxial testing Part 5: ENMetallic materials – Tensile testing – Part 4: However since there is insufficient quantitative data available it is not possible to include their effects in uncertainty budgets at present.
If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. The percentage total elongation at maximum force shall be calculated from the following equation: Every endeavour should be made to ensure that test pieces are held in such a way that the tension is applied as axially as possible, in order to minimize bending. In the case of non-proportional test pieces, the symbol A should be supplemented by an index indicating the original gauge length used, expressed in millimetres, for example: In the case of parallel side test pieces less than 20 mm wide, and unless otherwise specified in the product standard, the original gauge length Lo shall be equal to 50 mm.
For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. Because of the shape of the stress-strain curve, some of the tensile properties in principle can be determined with a higher degree of precision than others, e. September Replaced By: A line is then drawn parallel to this line, at a distance from the corrected origin of the curve, measured along the abscissa, equal to the prescribed non- proportional percentage.
Overview Product Details This European Standard, a part of the BS EN series, specifies the method for tensile testing of metallic materials and defines the mechanical properties which can be determined at ambient temperature. The test involves straining a test piece in tension, generally to fracture, for the purpose of determining one or more mechanical properties.
For example to capture ReH, the following formula may be used to determine the minimum sampling frequency: When this procedure is used, it should be recorded in the test report. EN was composed of five parts: The annexes B, C, D and E are normative. This annex has now been revised to more closely follow the approach for estimating the uncertainty of measurement outlined in the guide established by ISO TAG4 .
This is of particular importance when testing brittle materials or when determining proof strength non-proportional extension or proof strength total extension or yield strength. NOTE 1 This procedure confirms only that the machine finds the material characteristics for the particular test piece form, material tested and conditions used. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested.
Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. The uncertainty budget presented here could be regarded as an upper bound to the measurement uncertainty for a laboratory undertaking testing in compliance with EN since it is possible that a laboratory could actually control some of the testing parameters to a better level of precision than that demanded by the standard, e.
EN Tensile Testing Metallic Materials – Instron
In cases of dispute, the value, D, shall be used, as long as there is sufficient material. NOTE 1 A three-degree polynomial regression is recommended. Onsite Training At Your Facility.
The intersection of this parallel line and the force-extension curve gives the force corresponding to the proof strength. After fracture, the broken test piece should be placed in a fixture and enn compressive force applied, preferably by means of a screw, sufficient to gs hold the pieces together during measurement. Types A and B. A statistical approach to the analysis of intercomparison exercises Round Robin experiments does not separate out the two contributing causes of the scatter but nevertheless gives a useful indication of the likely range of tensile results measured by different laboratories using similar material.
For details of these and other benefits contact Membership Administration. Figure 11 – Proportional test pieces ej annex D 110002-1 ce ns ed C op y: The test pieces are defined according to the shape and type of product tested.
Bibliographic references to these and other acceptable methods are given in Bibliography  to em.
In practice the requirements and tolerances of the present standard do not allow all the 1000-1 to be quantified. For test pieces with a rectangular cross-section, it is recommended that the width to thickness ratio should not exceed 8: It gives no confidence that the properties of the material tested are either correct or fit for purpose.
The parallel length Lc or, in the case where the test piece has no transition curve, the free length between the grips, shall always be greater than the original gauge length Lo.
The intersection between these two lines represents the end of yield point extension.