ChinaAutoRegs｜GB/T 228.1-2010 英文版/English/翻译/金属材料 拉伸试验 第1部分：室温试验方法
Metallic materials – Tensile testing – Part 1 : Method of test at room temperature

Contents
Foreword
Introduction
1 Scope
2 Normative References
3 Terms and Definitions
4 Symbols and Description
5 Principle
6 Test Piece
7 Determination of Original Cross-sectional Area
8 Marking the Original Gauge Length
9 Accuracy of Testing Apparatus
10 Test Requirements
11 Determination of the Upper Yield Strength
12 Determination of the Lower Yield Strength
13 Determination of Proof Strength, Plastic Extension
14 Determination of Proof Strength, Total Extension
15 Verification and Determination of Permanent Set Strength
16 Determination of the Percentage Yield Point Extension
17 Determination of the Percentage Plastic Extension at Maximum Force
18 Determination of the Percentage Total Extension at Maximum Force
19 Determination of the Ppercentage Total Extension at Fracture
20 Determination of Percentage Elongation after Fracture
21 Determination of Percentage Reduction of Area
22 Rounding off of the Test Results
23 Test Report
24 Measurement Uncertainty
Annex A (Informative) Recommendations Concerning the Use of Computer-controlled Ttensile Testing Machines
Annex B (Normative) Types of Test Pieces to be Used for Thin Sheets and Strips between 0.1 mm and 3 mm Thick
Annex C (Normative) Types of Test Pieces to be Uused for Wire, Bars and Sections with a Diameter or Thickness of Less Than 4 mm
Annex 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
Annex E (Normative) Types of Test Pieces to be Used for Tubes
Annex F (Informative) Estimation of the Crosshead Separation Rate in Consideration of the Stiffness (or Compliance) of the Testing Machine
Annex G (Informative) Measuring the Percentage Elongation after Fracture if the Specified Value is Less Than 5%
Annex H (Informative) Measurement of Percentage Elongation after Fracture Based on the Displacement Method
Annex I (Informative) Determination of the Plastic Elongation without Necking, Awn, for Long Products Such As Bars, Wire and Rods
Annex J (Normative) Determination of Plastic Extension Strength (Rp) based on Successive Approximation Method
Annex K (Informative) Example for Deternination of Permanent Extension Strength (Rr0.2) Based on the Stress Relaxation Method
Annex L (Informative) Estimation of the Uncertainty of Tensile Test Measurement
Annex M (Informative) Precision of Tensile Testing – Results from Interlaboratory Programmes
Bibliography

1 Scope
This 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.
This part is applicable to the determination of the tensile property of metallic materials at room temperature.
Note: Annex A indicates complementary recommendations for computer controlled testing machines.
2 Normative References
The 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.
GB/T 2975 Steel and Steel Products – Location and Preparation of Test Pieces for Mechanical Testing (GB/T 2975—1998, eqv ISO 377:1997)
GB/T 8170 Rules for Rounding Off of Numerical Values and Expression and Judgment of Limiting Values
GB/T 10623 Metallic materials – Terms of Mechanical Test (GB/T 10623-2008, ISO 23718: 2007, MOD)
GB/T 12160 Calibration of Extensometers Used in Uniaxial Testing (GB/T 12160-2002, ISO 9513: 1999, IDT)
GB/T 16825.1 Verification of Static Uniaxial Testing Machines – Part 1: Tension/compression testing machines – Verification and Calibration of the Force-measuring System (GB/T 16825.1 – 2008, ISO 7500-1: 2004, IDT)
GB/T 17600.1 Steel Conversion of Elongation Values – Part 1: Carbon and Lowalloy Steels (GB/T 17600. 1-1998 ,eqv ISO 2566-1: 1984)
GB/T 17600.2 Steel Conversion of Elongation Values – Part 2: Austenitic Steel (GB/T 17600.2-3998, eqv ISO 2566-2: 1984)
GB/T 22066 Evaluation for Computerized Data Acquisition Systems for Used in Static Uniaxial Testing Machines
3 Terms and Definitions
For the purpose of this document, the terms and definitions given in GB/T 10623 and the followings apply.

1、现成译文，到款即发。
2、下单前可任取样页验证译文质量。
3、免费提供正规普通增值税数电发票。
4、请联系手机/微信: 13306496964/Email: standardtrans@foxmail.com 获取完整译文。
5、本英文译本为纯人工专业精翻版本，保证语法术语准确率和专业度！
6、专业源于专注|ChinaAutoRegs 始终专注于汽车标准翻译领域！
7、「中国汽车标准译文库」已收录上千个现行汽车国家标准和行业标准的英文版译本，涵盖传统燃油车、新能源汽车和摩托车标准化体系！独家打造千万级汽车专业术语库和记忆库。

1. The English Translation of this document is readily available, and delivered immediately upon payment.
2. You may request for sample pages to your preference before placing an order.
3. Please contact standardtrans@foxmail.com for the complete PDF version in English.
4. Almost all of Chinese automotive/automobile standards, regulations and norms (GB, GB/T, QC/T, CNCA, CQC, CAV, etc.) in effect have been included in our well-established database, providing one-stop, up-to-date, efficient and professional solution.