GB/T 228.1-2010 Translated English of Chinese Standard. (GBT 228.1-2010, GB/T228.1-2010, GBT228.1-2010): Metallic Materials - Tensile Testing - Part 1: Method of Test at Room Temperaturehttps://www.chinesestandard.net, 13.11.2016 - 75 Seiten This part of GB/T 228 specifies the principle, definition, symbols, explanation, test piece and dimensional measurement, testing equipment, testing requirements, performance determination, the numerical rounding of determination results and testing report of the method for tensile testing of metallic materials. |
Inhalt
| 1 | |
Terms and Symbols | 9 |
Test Piece | 11 |
Determination of Original Crosssectional Area | 12 |
Accuracy of Testing Apparatus | 13 |
Determination of the Upper Yield Strength | 17 |
Determination of the Lower Yield Strength | 18 |
Determination of Proof Strength Total Extension | 20 |
Determination of Percentage Reduction of Area | 23 |
Rounding of Numerical Values of Testing Results | 24 |
Appendix A Informative Recommendations Concerning the Use of Computercontrolled Tensile Testing Machines | 31 |
Sheets Strips and Flats Between 0 1mm and 3mm Thick | 36 |
Normative Types of Test Pieces to Be Used for Wire Bars and Sections with a Diameter or Thickness of Less Than 4mm | 38 |
Normative Types of Test Pieces to Be Used for Sheets and Flats of Thickness Equal to or Greater than 3mm and Wire Bars and Sections of Diameter ... | 39 |
Appendix E Normative Types of Test Pieces to Be Used for Tubes | 42 |
Appendix F Informative Estimation of the Crosshead Separation Rate in Consideration of the Stiffness or Compliance of the Testing Machine | 45 |
Determination of the Percentage Plastic Extension at Maximum Force | 21 |
Determination of the Percentage Total Extension at Maximum Force | 22 |
Appendix G Informative Measuring the Percentage Elongation after Fracture If | 46 |
Informative Precision of Tension TestAccording to Results | 64 |
Häufige Begriffe und Wortgruppen
Appendix Arbitration test area after fracture assessment for relative Austenitic circular cross-section crel crosshead separation rate determination diameter ėeL elongation after fracture Equation estimated strain rate extension at fracture extension at maximum extensometer gauge length Figure final gauge length force-extension curve GB/T gripped ends Lc/mm Test piece length after fracture Lo/mm Lc/mm Test lower yield strength Martensitic maximum force measurement uncertainty metallic materials millimetres non-proportional test piece original cross-sectional area original gauge length parallel length percentage elongation percentage extension percentage plastic extension percentage total extension permanent extension permanent set strength plastic extension strength proof strength proportional test piece range reduction of area relative expanded uncertainty relative standard uncertainty relative tolerance scale divisions specified standard uncertainty subitem stress rate stress-strain curve tensile strength tensile testing tension rate testing rate tolerance of 20 tube uncertainty subitem urel uniform distribution upper yield strength width yield point extension