BS EN 10002-1 PDF
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 It supersedes BS EN which is withdrawn.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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It is the intention, based on further developments by manufacturers and users that annex A will become normative in the next revision of this standard. After fracture, the broken test piece should be placed in a fixture and axial compressive force applied, preferably by means of a screw, sufficient to firmly hold the pieces together during measurement.
A second arc of the same radius should then be scribed from the original center, and the distance between the two scratches measured by means of a measuring microscope or other suitable instrument. Revisions British Standards are updated by amendment or revision.
This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. The 100002-1 cross-sectional area of the length of tube or longitudinal or transverse strip may be determined from rn mass of the test piece, the length of which has been measured, and from its density.
EN 10002-1 Tensile Testing Metallic Materials
The test pieces are defined according to the shape and type of product tested. The intersection between these two lines represents the end of yield point extension. To fully comply with the assessment of uncertainty it would be necessary to consider all the possible sources of uncertainty contributing to the measurements including those due to uncertainties in the devices used in the calibration chain, i. The difference between the area Su and the original cross section So expressed as a percentage of the original area gives the percentage reduction of area.
EN Tensile Testing Metallic Materials – Instron
A type A evaluation of uncertainty may be based on any valid statistical method for treating data. The annexes B, C, D and E are normative.
In any case, it should be recommended that pertinent limits for the range can be selected by the user in order to eliminate senseless values of the slope of the curve in the elastic range. In practice the requirements and tolerances of the present standard do not allow all the effects to be quantified. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. It is indicated in annexes B to E for the different types of test pieces.
They should be given in basic Sl units relating to the force, the extension, the time and the test piece dimensions. The nominal width of the test piece may be used, provided that the machining tolerances and tolerances on shape given in Table B. Onsite Training At Your Facility. Special precautions shall be taken to ensure proper contact between the broken parts of the test piece when measuring the final gauge length.
This length which is function of the value of the percentage total elongation should be defined in the product standard.
BS EN 10002-1:2001
The elongation is measured as the total extension at fracture, and it is therefore necessary to deduct the elastic extension in order to obtain percentage elongation after fracture. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. NOTE In cases where the percentage elongation after fracture is not to be determined, a distance between the grips of at least 50 mm may be used.
An example of the application of these tolerances is given below: Tables of standard tolerances grades and limits deviations for holes and shafts ISO A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions.
The latter is obtained by dividing this force by the original cross-sectional area of the test piece So see Figure 6. NOTE 1 Sufficient resolution in drawing the force-extension diagram is essential. Figure 8 – Maximum force Fm Li ce ns ed C op y: You may find similar items within these categories by selecting from the choices below:. Bw the purposes of assessing the acceptability of such differences, five similar test pieces should be tested and the average difference for each relevant property should lie within the limits 10002-1 in Table A.
Hence it is necessary to have a prior knowledge of a material’s tensile response to strain or stress rate before being able to calculate the measurement uncertainty.
Before the test, equidistant marks are made on the measuring gauge length, the distance between 2 successive marks being equal to a submultiple of 1002-1 initial gauge length L’o.
NOTE For the determination of upper eh lower yield strengths, the use of an extensometer is not necessary. The force is then increased again until it exceeds the bd obtained originally. After determining ReL by this procedure, the test rate may be increased as per Parts 3 and 4 will be replaced by corresponding ISO standards.
Test pieces of circular cross-section should preferably have the dimensions given in Table D. The accuracy of this calculation depends on the nature and type of the test piece. The end point can be determined by constructing two lines, the first being horizontal from the last point of zero slope and the second as a tangent to the strain hardening section of the curve as close as possible to the point of inflection.
The percentage non-proportional elongation at maximum force is calculated by the following formula: The cross-section of the test pieces may be circular, square, rectangular, annular or, in special cases, of some other shape.
Compliance with a British Standard does not of itself confer immunity from legal obligations. The parallel length Lc shall be connected to the ends by means of transition curves with a radius of at least 20 mm. Contact the Information Centre.
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. Bluehill LE for Basic Testing. The parallel length Lc or, in the case where the test piece has be transition curve, the free length between the grips, shall always be greater than the original gauge length Lo.