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BS EN ISO 204:2018

$198.66

Metallic materials. Uniaxial creep testing in tension. Method of test

Published By Publication Date Number of Pages
BSI 2018 62
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This document specifies the methods for

  1. uninterrupted creep tests with continuous monitoring of extension,

  2. interrupted creep tests with periodic measurement of elongation,

  3. stress rupture tests where normally only the time to fracture is measured,

  4. a test to verify that a predetermined time can be exceeded under a given force, with the elongation or extension not necessarily being reported.

NOTE A creep test can be continued until fracture has occurred or it can be stopped before fracture.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
6 Foreword
7 Introduction
8 1 Scope
2 Normative references
3 Terms and definitions
13 4 Symbols and designations
15 5 Principle
6 Apparatus
19 7 Test pieces
7.1 Shape and dimensions
7.1.1 Shape and dimension of smooth test pieces
20 7.1.2 Shape and dimension of notched test pieces
7.2 Preparation
21 7.3 Determination of the original cross-sectional area
7.4 Marking of the original gauge length, Lo
7.5 Determination of the reference length, Lr
22 8 Test procedure
8.1 Heating of the test piece
8.2 Application of the test force
23 8.3 Test interruptions
8.3.1 Planned interruptions of the test
8.3.2 Multiple test piece machine with several test pieces in line
8.3.3 Combined test
8.3.4 Accidental interruption of the test
8.4 Recording of temperature and elongation or extension
8.4.1 Temperature
8.4.2 Elongation and extension
24 8.4.3 Elongation-time diagram or extension-time diagram
9 Determination of results
10 Test validity
11 Accuracy of the results
11.1 Expression of the results
25 11.2 Final uncertainty
12 Test report
30 Annex A (informative) Information concerning drift of thermocouples
33 Annex B (informative) Information concerning methods of calibration of thermocouples
34 Annex C (normative) Creep testing using test pieces with V or blunt circumferential notches
38 Annex D (informative) Method of estimating the uncertainty of the measurement in accordance with the Guide to the expression of uncertainty in measurement (GUM)
45 Annex E (informative) Representation of results and extrapolation
55 Annex F (informative) Computer compatible representation of standards
56 Bibliography
BS EN ISO 204:2018
$198.66