This Standard adopts ISO 6892-2:2018 which specifies a method of tensile testing of metallic materials at temperatures higher than room temperature.
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and designations
5 Principle
6 Test piece
7 Determination of original cross-sectional area (So)
8 Marking the original gauge length (Lo)
9 Apparatus
9.1
9.2
9.3
9.3.1
9.3.2
9.3.3
10 Test conditions
10.1 Setting the force zero point
10.2 Gripping of the test piece, fixing of the extensometer and heating of the test piece, not necessarily in the following sequence
10.2.1 Method of gripping
10.2.2 Fixing of the extensometer and establishing the gauge length
10.2.2.1 General
10.2.2.2 Le based on room temperature (Method 1)
10.2.2.3 Le based on test temperature (Method 2)
10.2.2.3.1 Nominal Le at test temperature (Method 2 a)
10.2.2.3.2 Reduced Le at room temperature (Method 2 b)
10.2.2.3.3 Corrected Le at test temperature (Method 2 c)
10.2.3 Heating of the test piece
10.3 Testing rate based on strain rate control (Method A)
10.3.1 General
10.3.2 Strain rate for the determination of the upper yield strength (ReH) or proof strength properties (Rp and, if required, Rt)
10.3.3 Strain rate for the determination of the lower yield strength (ReL) and percentage yield point extension (Ae), if required
10.3.4 Strain rate for the determination of the tensile strength (Rm), percentage elongation after fracture (A), percentage reduction area (Z), and, if required, percentage total extension at the maximum force (Agt), percentage plastic extension at maximum force (Ag)
10.4 Method of testing with expanded strain rate ranges (Method B)
10.4.1 General
10.4.2 Rate for the determination of yield strength or proof strength properties
10.4.3 Rate for the determination of tensile strength
10.5 Choice of the method and rates
10.6 Documentation of the chosen testing conditions
11 Determination or calculation of the properties
12 Test report
13 Measurement uncertainty
14 Figures
15 Annexes
Annex A
A.1 General
A.2 Test pieces for thin products: sheets, strips and flats with thickness between 0,1 mm and 3 mm
A.2.1 Test pieces to be used for sheets and flats with thickness equal to or greater than 3 mm
A.3 Test pieces to be used for wires, bars and sections with diameter or thickness equal to or greater than 4 mm
A.4 Example of test piece with collars/annular knife-edge ridges
