GB/T 228.1-2010 Metallic materials - Tensile testing - Part 1 : Method of test at room temperature (Text of Document is in English) - Beijing translation compay

Foreword
Introduction
1 Scope
2 Normative References
3 Terms and Definitions
4 Terms and Symbols
5 Principle
6 Test Piece
7 Determination of original Cross-sectional Area
8 Marking the original Gauge Length
9 Accuracy of Testing Apparatus
10 Conditions of Testing
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 Method of verification 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 percentage total extension at fracture
20 Determination of percentage elongation after fracture
21 Determination of percentage reduction of area
22 Rounding off for test results value
23 Test Report
24 Measurement uncertainty
Annex A
Annex B
Annex C
Annex D
Annex E
Annex F
Annex G
Annex H
Annex I
Annex J
Annex K
Annex L
Annex M
References