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YS/T 814-2012: Test method for stress corrosion resistance of brass finished products
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 814-2012 | English | 239 |
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Test method for stress corrosion resistance of brass finished products
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YS/T 814-2012
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Basic data | Standard ID | YS/T 814-2012 (YS/T814-2012) | | Description (Translated English) | Test method for stress corrosion resistance of brass finished products | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H62 | | Classification of International Standard | 77.120.30 | | Word Count Estimation | 9,995 | | Quoted Standard | GB/T 10567.2 | | Regulation (derived from) | Ministry of Industry and Information Technology Bulletin No. 55 of 2012; industry standard filing Notice 2013 No. 1 (Total No. 157); | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the accelerated test with nitrogen to test the susceptibility to stress corrosion cracking manufactures brass methods. This standard applies by casting, forging, welding, cold deformation, heat treatment or machining brass finished | YS/T 814-2012: Test method for stress corrosion resistance of brass finished products---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 method for stress corrosion resistance of brass finished products
ICS 77.120.30
H62
People's Republic of China Nonferrous Metals Industry Standard
Manufactures brass stress corrosion test
Issued on. 2012-11-07
2013-03-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The reference standard EN14977.2006 "Copper and copper alloys tensile stress test to detect a 5% ammonia smoked," and with our stress manufactures brass
Actual corrosion tests were prepared.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized.
This standard was drafted. Rutter (Xiamen) Industry Co., Ltd., Chinalco Luoyang Copper Co., Ltd.
The main drafters of this standard. Xuzhuan Kai, Hu Zhenqing, He Yuhui, climbing road Jun, Jiang Changle.
Manufactures brass stress corrosion test
1 Scope
This standard specifies the use of ammonia accelerated test to verify manufactures brass stress corrosion cracking sensitivity of the method.
This standard applies to by casting, forging, welding, cold deformation, heat treatment or machining brass finished products (such as valves, faucets, etc.), as
Test product assembly, and also applies to semi-finished products, assembly installation state simulation test.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 10567.2 copper and copper alloy processing residual stress - Ammonia test methods smoked test method
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Stress corrosion cracking stresscorrosioncracking
Spontaneous rupture of the metal caused by corrosion damage in the residual stress and applied stress or joint action.
[GB/T 10567.2-2007, Definition 2.1]
3.2
Residual Stress residualstress
Due to plastic deformation, temperature change, phase change, and the results of the irradiated object remains in the internal stress.
NOTE. rewrite GB/T 10567.2-2007, definitions 2.3.
3.3
Applied stress appliedstress
During the application of an external load (including product assembly and installation) and cause and effect of stress on top of the object.
NOTE. rewrite GB/T 10567.2-2007, Definition 2.2.
3.4
Intergranular corrosion cracking intergranularcorrosioncracking
Metal corrosion along the grain boundaries so that the loss of binding force between the grains and intergranular fracture occurs.
Principle 4
Residual stress and applied stress can lead brass finished in use or during storage due to stress corrosion cracking and damage. The method of Lee
Brass in an ammonia atmosphere stress corrosion cracking susceptibility of strong principle, the sample was exposed to ammonia atmosphere for some time, and then check again
Like cracks or fracture if there are some traces of corrosion depth to determine whether the stress exceeds the limit, and conformity assessment.
5 Reagents and materials
5.1 Ammonia (ρ = 0.90g/mL), AR.
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