GB/T 33883-2017 English PDF

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GB/T 33883-2017: Test methods for stress corrosion of 7××× series aluminum alloys -- Boiling sodium chloride solution method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33883-2017	119	Add to Cart	3 days	Test methods for stress corrosion of 7××× series aluminum alloys -- Boiling sodium chloride solution method	Valid

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Basic data

Standard ID: GB/T 33883-2017 (GB/T33883-2017)
Description (Translated English): Test methods for stress corrosion of 7������ series aluminum alloys -- Boiling sodium chloride solution method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H25
Classification of International Standard: 77.060
Word Count Estimation: 6,658
Date of Issue: 2017-07-12
Date of Implementation: 2018-02-01
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 33883-2017: Test methods for stress corrosion of 7××× series aluminum alloys -- Boiling sodium chloride solution method

---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.
Test methods for stress corrosion of 7 × × × series aluminum alloys - Boiling sodium chloride solution method ICS 77.060 H25 National Standards of People's Republic of China Stress corrosion test of 7 × × × aluminum alloy Boiling sodium chloride solution method Testmethodsforstresscorrosionof7 ××× seriesaluminumaloys- Boilingsodium chloride compounds 2017-07-12 released 2018-02-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is 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 is owned by the National Committee for the Standardization of Nonferrous Metals (SAC/TC243). The main drafting unit of this standard. National Nonferrous Metals Quality Supervision and Inspection Center, Shandong Yankuang Light Alloy Co., Ltd., Longkou City Jungle Aluminum Co., Ltd., Northeast Light Alloy Co., Ltd., Southwest Aluminum (Group) Co., Ltd., Guangdong Industrial Analysis and Testing Center, Guangdong Hao Mei Aluminum Co., Ltd., Sichuan Samsung New Materials Technology Co., Ltd. The main drafters of this standard. Li Pu, Wei Kaige, Zhang Hongju, Luan Shouguo, Gao Xinyu, Peng Zhijun, Shi Changliang, Yang Jingjun, Mu Yongtao. Stress corrosion test of 7 × × × aluminum alloy Boiling sodium chloride solution method

1 Scope

This standard specifies the 7 × × × Department of aluminum alloy stress corrosion of boiling sodium chloride solution test method. This standard applies to boiling sodium chloride solution method to test the copper content of less than 1.2% of the 7 × × × system of aluminum alloy products, the stress corrosion resistance.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods GB/T 8013.1 Aluminum and aluminum alloy anodized films and organic polymer films - Part 1. Anodized films GB/T 15970.2 Corrosion stress corrosion testing of metals and alloys - Part 2. Preparation and application of curved beam specimens GB/T 15970.3 Corrosion stress corrosion testing of metals and alloys - Part 3. Preparation and application of U-shaped bending specimens GB/T 15970.4 Corrosion stress corrosion corrosion of metals and alloys - Part 4. Preparation and application of uniaxially loaded tensile specimens GB/T 15970.8 Corrosion stress corrosion testing of metals and alloys - Part 8. Preparation and application of welded specimens Test method for stress corrosion of ring specimens of GB/T 22640 aluminum alloy processed products

3 Method Overview

A constant strain or constant stress sample is applied soaked in boiling sodium chloride solution until visible cracks are reached or when specified And the resistance to stress corrosion of the material evaluated by the presence or absence of the duration or the specified time of the specimen.

4 reagents and solutions

Unless otherwise stated, the reagents used in this standard are analytical reagents that conform to national or industry standards. The water used is GB/T 6682 Specified third and above distilled water or deionized water. 4.1 sodium chloride solution. Weigh 6.0g ± 0.1g sodium chloride, dissolved in 94.0g of water, this solution 1mL containing 60mg sodium chloride. 4.2 sodium hydroxide solution (150g/L ~ 250g/L). 4.3 Hydrochloric acid (1 1). 4.4 Test solution. take sufficient sodium chloride solution (4.1), with hydrochloric acid (4.3) or sodium hydroxide solution (4.2) to adjust the pH value of 6.4 ~ 7.2 Within range. The pH should be measured at 25 ° C ± 2 ° C with an acidity meter or pH meter, or a measurement accuracy of not less than 0.3 Of the precision test paper for daily testing.

5 test device

5.1 Typical test device diagram shown in Figure 1. ......

Image     

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