ChinaAutoRegs\uff5cGB\/T 228.1-2010 \u82f1\u6587\u7248\/English\/\u7ffb\u8bd1\/\u91d1\u5c5e\u6750\u6599 \u62c9\u4f38\u8bd5\u9a8c \u7b2c1\u90e8\u5206\uff1a\u5ba4\u6e29\u8bd5\u9a8c\u65b9\u6cd5
\nMetallic materials – Tensile testing – Part 1 : Method of test at room temperature<\/p>\n
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Contents
\nForeword
\nIntroduction
\n1 Scope
\n2 Normative References
\n3 Terms and Definitions
\n4 Symbols and Description
\n5 Principle
\n6 Test Piece
\n7 Determination of Original Cross-sectional Area
\n8 Marking the Original Gauge Length
\n9 Accuracy of Testing Apparatus
\n10 Test Requirements
\n11 Determination of the Upper Yield Strength
\n12 Determination of the Lower Yield Strength
\n13 Determination of Proof Strength, Plastic Extension
\n14 Determination of Proof Strength, Total Extension
\n15 Verification and Determination of Permanent Set Strength
\n16 Determination of the Percentage Yield Point Extension
\n17 Determination of the Percentage Plastic Extension at Maximum Force
\n18 Determination of the Percentage Total Extension at Maximum Force
\n19 Determination of the Ppercentage Total Extension at Fracture
\n20 Determination of Percentage Elongation after Fracture
\n21 Determination of Percentage Reduction of Area
\n22 Rounding off of the Test Results
\n23 Test Report
\n24 Measurement Uncertainty
\nAnnex A (Informative) Recommendations Concerning the Use of Computer-controlled Ttensile Testing Machines
\nAnnex B (Normative) Types of Test Pieces to be Used for Thin Sheets and Strips between 0.1 mm and 3 mm Thick
\nAnnex C (Normative) Types of Test Pieces to be Uused for Wire, Bars and Sections with a Diameter or Thickness of Less Than 4 mm
\nAnnex D (Normative) Types of Test Pieces to be Used for Sheets and Flats of Thickness Eequal to or Greater Than 3 mm, and Wire, Bars and Sections of Diameter or Thickness Equal to or Greater Than 4 mm
\nAnnex E (Normative) Types of Test Pieces to be Used for Tubes
\nAnnex F (Informative) Estimation of the Crosshead Separation Rate in Consideration of the Stiffness (or Compliance) of the Testing Machine
\nAnnex G (Informative) Measuring the Percentage Elongation after Fracture if the Specified Value is Less Than 5%
\nAnnex H (Informative) Measurement of Percentage Elongation after Fracture Based on the Displacement Method
\nAnnex I (Informative) Determination of the Plastic Elongation without Necking, Awn, for Long Products Such As Bars, Wire and Rods
\nAnnex J (Normative) Determination of Plastic Extension Strength (Rp) based on Successive Approximation Method
\nAnnex K (Informative) Example for Deternination of Permanent Extension Strength (Rr0.2) Based on the Stress Relaxation Method
\nAnnex L (Informative) Estimation of the Uncertainty of Tensile Test Measurement
\nAnnex M (Informative) Precision of Tensile Testing \u2013 Results from Interlaboratory Programmes
\nBibliography<\/p>\n
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1 Scope
\nThis part of GB\/T 228 specifies the principal, definition, symbols and description, test piece and dimension measurement, test equipment, test requirement, performance determination, rounding off of results of determination and test report for the method of tensile testing of metallic materials.
\nThis part is applicable to the determination of the tensile property of metallic materials at room temperature.
\nNote: Annex A indicates complementary recommendations for computer controlled testing machines.
\n2 Normative References
\nThe following documents are essential for the application of this document. For dated references, only the dated edition applies. For undated references, the latest edition (including all the amendments) applies.
\nGB\/T 2975 Steel and Steel Products – Location and Preparation of Test Pieces for Mechanical Testing (GB\/T 2975\u20141998, eqv ISO 377:1997)
\nGB\/T 8170 Rules for Rounding Off of Numerical Values and Expression and Judgment of Limiting Values
\nGB\/T 10623 Metallic materials – Terms of Mechanical Test (GB\/T 10623-2008, ISO 23718: 2007, MOD)
\nGB\/T 12160 Calibration of Extensometers Used in Uniaxial Testing (GB\/T 12160-2002, ISO 9513: 1999, IDT)
\nGB\/T 16825.1 Verification of Static Uniaxial Testing Machines \u2013 Part 1: Tension\/compression testing machines – Verification and Calibration of the Force-measuring System (GB\/T 16825.1 – 2008, ISO 7500-1: 2004, IDT)
\nGB\/T 17600.1 Steel Conversion of Elongation Values – Part 1: Carbon and Lowalloy Steels (GB\/T 17600. 1-1998 ,eqv ISO 2566-1: 1984)
\nGB\/T 17600.2 Steel Conversion of Elongation Values – Part 2: Austenitic Steel (GB\/T 17600.2-3998, eqv ISO 2566-2: 1984)
\nGB\/T 22066 Evaluation for Computerized Data Acquisition Systems for Used in Static Uniaxial Testing Machines
\n3 Terms and Definitions
\nFor the purpose of this document, the terms and definitions given in GB\/T 10623 and the followings apply.<\/p>\n
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ChinaAutoRegs\uff5cGB\/T 228.1-2010 \u82f1\u6587\u7248\/Englis … \u7ee7\u7eed\u9605\u8bfb