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GB/T 34205-2017 English PDF

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US$339.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 34205-2017: Metallic materials -- Hardness testing -- Ultrasonic contact impedance method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 34205-2017	339	Add to Cart	4 days	Metallic materials -- Hardness testing -- Ultrasonic contact impedance method	Valid

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Basic data

Standard ID: GB/T 34205-2017 (GB/T34205-2017)
Description (Translated English): Metallic materials -- Hardness testing -- Ultrasonic contact impedance method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H22
Word Count Estimation: 17,196
Date of Issue: 2017-09-07
Date of Implementation: 2018-06-01
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 34205-2017: Metallic materials -- Hardness testing -- Ultrasonic contact impedance 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.
Metallic materials - Hardness testing - Ultrasonic contact impedance method ICS 77.040.10 H22 National Standards of People's Republic of China Metallic materials - Hardness test - Ultrasonic contact impedance method 2017-09-07 Posted 2018-06-01 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 Iron and Steel Association. This standard by the National Standardization Technical Committee Steel (SAC/TC183) centralized. This standard was drafted unit. Shanghai Electric Power Equipment Co., Ltd. Shanghai Steam Turbine Works, Metallurgical Industry Information Standards Institute, Dongguan City Wang Precision Instrument Co., Ltd. The main drafters of this standard. Zhu Yue Mei, Jia Guoqing, Dong Li, Zheng Chunping, Li Rongfeng, Liu Si, Fang Jian, Yao long red. Metallic materials - Hardness test - Ultrasonic contact impedance method

1 Scope

This standard specifies the terms and definitions, principles, symbols and descriptions of the hardness test of ultrasonic contact resistance of metallic materials, test equipment, test Sample, Test Procedure, Uncertainty of Results, Test Report. This standard applies to metal materials ultrasonic contact resistance method hardness test is also applicable to the metal coating, coating and hardened layer ultrasonic contact resistance Anti-method hardness 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 4340.1 Vickers hardness test of metallic materials - Part 1. Test methods GB/T 4340.2 Vickers hardness test of metallic materials - Part 2. Inspection and calibration of hardness tester GB/T 4340.3-2012 Vickers hardness test of metallic materials - Part 3. Calibration of standard hardness blocks GB/T 10623 metallic materials mechanical properties test terms Technical specification of ultrasonic hardness tester JJF1436 ultrasonic hardness calibration standard

3 Terms and definitions

GB/T 10623 defined and the following terms and definitions apply to this document. 3.1 Ultrasonic contact resistance ultrasoniccontactimpedance; UCI Ultrasonic vibration frequency pressure head into the metal sample surface, due to the contact area at the indentation caused by vibration of the resonant frequency of the rod Variety. 3.2 Effective elastic modulus effectiveelasticmodulus Elasticity of the test system during ultrasonic hardness testing. Note. The test system consists of vibrating rod, ram and specimen.

4 principle

Ultrasonic contact impedance method is a direct measurement of indentation dynamic press-in method. The end is inlaid with a specific head (such as regular pyramid diamond Indenter) of the vibrating rod is excited to do vertical ultrasonic vibration, with a certain test force will be pressed into the test surface, the longitudinal vibration of the vibrating rod will By the impedance, the resonant frequency changes. The amount of variation is proportional to the indentation surface area and the effective modulus of elasticity of the system, The rate of change is obtained. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 34205-2017_English be delivered?

Answer: Upon your order, we will start to translate GB/T 34205-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 34205-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 34205-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.