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GB/T 34645-2017 English PDF

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GB/T 34645-2017: Contractile strain ratio testing of metal materials tubing
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Basic data

Standard ID GB/T 34645-2017 (GB/T34645-2017)
Description (Translated English) Contractile strain ratio testing of metal materials tubing
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H22
Classification of International Standard 77.040.10
Word Count Estimation 10,124
Date of Issue 2017-09-29
Date of Implementation 2018-04-01
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 34645-2017: Contractile strain ratio testing of metal materials tubing

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Contractile strain ratio testing of metal materials tubing ICS 77.040.10 H22 National Standards of People's Republic of China Metallic tubes - Shrinkage strain ratio test method 2017-09-29 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by China Nonferrous Metals Industry Association. This standard by the National Non-ferrous Metal Standardization Technical Committee (SAC/TC243) centralized. This standard was drafted unit. Baoti Group Co., Ltd., Baoji Titanium Co., Ltd., Western Metal Materials Co., Ltd., National Nuclear Po Titanium Zirconium Corporation, China Aviation Engine Corporation Beijing Institute of Aeronautical Materials, Shaanxi billion invasive titanium zirconium detection Limited. The main drafters of this standard. Li Jian, Liu Hongwei, Xu Junmei, Ma Zhongxian, Yang Xiaojuan, Li Rong, Wu Jie, Lu Yuhua, Ma Kai, Zhang Wangfeng, Li Chao, Zhang Jiawei. Metallic tubes - Shrinkage strain ratio test method

1 Scope

This standard specifies the method of determining the shrinkage strain ratio of metal pipe CSR. This standard applies to titanium, zirconium and stainless steel and other metal high-precision special-purpose pipe shrinkage strain ratio CSR test.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 228.1 tensile testing of metallic materials - Part 1. room temperature test method GB/T 8170 rounded repair rules and limit values of the representation and judgment GB/T 12160 single axis test extensometer calibration

3 Terms and definitions

GB/T 228.1 defined and the following terms and definitions apply to this document. 3.1 Axial plastic true strain trueaxialstrain Ea In the uniaxial tensile stress, the pipe produces a uniform plastic deformation, deformation after the axial gauge and axial deformation before the ratio of the value of the natural logarithm. 3.2 True plastic circumferential strain truecircumferentialstrain Ec Under uniaxial tensile stress, the tube produces a uniform plastic deformation, the natural logarithm of the ratio of the perimeter after deformation to the perimeter before deformation. 3.3 Wall thickness plastic true strain tureradialstrain Er Under uniaxial tensile stress, the tube produces a uniform plastic deformation, the natural logarithm of wall thickness after deformation and wall thickness ratio before deformation. 3.4 Shrinkage strain ratio contractilestrainratio CSR Uniaxial tensile stress in the pipe, the pipe produces a uniform plastic deformation, pipe circumferential plastic strain and wall thickness plastic true strain ratio.

4 symbol

The standard symbols and descriptions in Table 1.

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