This standard specifies the principle, definitions, symbols and descriptions, test piece and dimension measurement, test equipment, test requirement, performance determination, rounding-off of the test result data and test report of tensile testing method of metallic materials.
This standard is applicable to determine the tensile performance of metallic materials at ambient temperature. But an agreement must be made for the tensile test of little-cross-section metal products such as metal foil, super-fine wire and capillary.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the standards indicated below.
GB/T 2975-1998 Steel and steel products C Location and preparation of test pieces for mechanical testing (eqv ISO 377:1997)
GB/T 8170-1987 Rules for rounding off of numerical values
GB/T 12160-2002 Calibration of the extensometer used for single axis test (idt ISO 9513:1999)
GB/T 16825-1997 Inspection of tensile tester (idt ISO 7500-1:1986)
GB/T 17600.1-1998 Steel - Conversion of elongation C Part 1: Carbon and low alloy steel (eqv ISO 2566-1:1984)
GB/T 17600.2-1998 Steel C Conversion of elongation C Part 2: Austenitic steel (eqv ISO 2566-2:1984)
3 Principle
The test involves straining a test piece by tensile force, generally to fracture, for the purpose of determining one or more of the mechanical properties defined in Chapter 4.
Unless otherwise specified, the test is normally carried out at ambient temperature between 10℃ and 35℃. The tests carried out under controlled conditions shall be made at a temperature of 23℃±5℃.
