GB/T 7964-2020: Translated English of Chinese Standard. (GBT 7964-2020, GB/T7964-2020, GBT7964-2020): Sintered Metal Materials (Excluding Hardmetal) - Tension Testing at Room Temperature
https://www.chinesestandard.net, Jun 20, 2020 - Technology & Engineering - 13 pages
This Standard specifies the room temperature tensile test method for sintered metal materials, including principles, symbols and instructions, specimens, test device, test procedures, calculation of test results, numerical rounding-off and test reports. This Standard is applicable to the determination of the yield strength, specified plastic elongation strength, tensile strength, elongation after break, and reduction of area for machined or non-machined sintered metal materials.
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Symbols and Instructions
Calculation of Test Results
Appendix A Informative Comparison List between Old and New Symbols
1MPa according to Formula according to Table accuracy of 0.01 Appendix applicable area is calculated calculated according chuck Clause Comparison List corresponding load cylindrical specimen determination diameter of necking directions document Drafting Edition elongation after break exceed extensometer gauge length Figure Fixture Institute Level-1 or better List between Old load-elongation diagram Materials Excluding Hardmetal maximum force value measurement accuracy 0.02mm measuring instrument measuring the tensile mechanical properties Metal Materials Excluding Minimum cross-sectional area necking Nonferrous Metals Normative References NOTE Number Original width Parallel performed in accordance perpendicular plastic elongation strength preparation and requirements provisions of GB/T Range Round-off record the corresponding Record the maximum Reduction of area Respectively Room Temperature rounded Sintered Metal Materials specified plastic elongation specimen is broken Standard strain rate strength Yield Symbols and Instructions Symbols Instructions Unit Tensile properties tensile strength Tensile Test Test Device Test Report test results testing machine yield strength