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GB/T 45766-2025: Silver and silver alloy powder for additive manufacturing
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 45766-2025 | English | 189 |
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Silver and silver alloy powder for additive manufacturing
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GB/T 45766-2025
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Basic data | Standard ID | GB/T 45766-2025 (GB/T45766-2025) | | Description (Translated English) | Silver and silver alloy powder for additive manufacturing | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H71 | | Classification of International Standard | 77.160, 25.030 | | Word Count Estimation | 9,975 | | Date of Issue | 2025-06-30 | | Date of Implementation | 2026-01-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45766-2025: Silver and silver alloy powder for additive manufacturing---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT45766-2025
ICS 77.160;25.030
CCSH71
National Standard of the People's Republic of China
Silver and silver alloy powders for additive manufacturing
Released on June 30, 2025
Implementation on January 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Preface
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document is proposed by China Nonferrous Metals Industry Association.
This document was prepared by the National Technical Committee on Standardization of Nonferrous Metals (SAC/TC243) and the National Technical Committee on Standardization of Additive Manufacturing
(SAC/TC562) jointly under the jurisdiction of the Commission.
This document was drafted by. China University of Geosciences (Wuhan), Nantong Jinyuan Intelligent Technology Co., Ltd., Nonferrous Metals Technology and Economics Research Institute
Co., Ltd., Xi'an Sailong Additive Technology Co., Ltd., Xinjinghe Laser Technology Group Co., Ltd., CSIC Huanggang Precious Metals Co., Ltd.
Co., Ltd., Northwest Research Institute of Nonferrous Metals, Shandong Zhaojin Gold and Silver Refining Co., Ltd., Yanqi Lake Basic Manufacturing Technology Research Institute (Beijing) Co., Ltd.
Co., Ltd., Wuhan University of Technology, School of Jewelry, Yunnan University of Technology, Jinggaoyoucai (Beijing) Technology Co., Ltd., Huazhong University of Science and Technology, Shanghai Aviation
Tianjin Precision Machinery Research Institute, Beikuang New Material Technology Co., Ltd., Tianjin Zhujin Technology Development Co., Ltd., Ningbo University, Luoyang Ship Materials
Research Institute (China Shipbuilding Industry Corporation No. 725 Research Institute), Wuhan University, Chongqing University, Central Iron and Steel Research Institute Co., Ltd., Shenyang Institute of Technology
Vocational University, Ningbo Zhongyuan New Materials Technology Co., Ltd., Wuhan Fanqi Jewelry Co., Ltd., Nanjing University of Science and Technology, and Northwest University.
The main drafters of this document are. Yin Zuowei, Li Zheng, Yin Jie, Mei Shuwen, Han Shaoqin, Wang Wenwei, He Weiwei, Cui Yan, Guan Kai, Zhang Shenghuan, Zheng Jing,
Li Shangyuan, Li Haibin, Wang Dengzhi, Cai Chao, Liu Lu, Ke Linda, Hu Yu, Qian Zhu, Liu Yang, Yang Xiao, Liu Sheng, Zhang Chen, Song Xu, Hu Yu, Li Kun,
Shi Jiejie, Zhou Ge, Zhao Wenjun, Liu Bo, Xiao Xingzhi, and Zhang Wenyan.
Silver and silver alloy powders for additive manufacturing
1 Scope
This document specifies the classification and marking, technical requirements, test methods, inspection rules, marking, packaging,
Transportation, storage and accompanying documents and order contents.
This document is applicable to the preparation of materials by inert gas atomization, plasma rotating electrode method, plasma atomization method, plasma spheroidization method, etc.
Silver and silver alloy powders for additive manufacturing.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 1479.1 Metal powders - Determination of bulk density - Part 1.Funnel method
GB/T 1480 Metal powders - Determination of particle size by dry sieving
GB/T 1482 Metal powder flowability determination standard funnel method (Hall flowmeter)
GB/T 5162 Determination of tap density of metal powders
GB/T 5314 Powder sampling method for powder metallurgy
GB/T 17832 Silver alloy jewellery - Determination of silver content - Potassium bromide volumetric method (potentiometric titration)
GB/T 19077 Particle size distribution laser diffraction method
GB/T 28021 Determination of harmful elements in jewelry by spectrometric method
GB/T 35351 Terminology for Additive Manufacturing
3 Terms and Definitions
The terms and definitions defined in GB/T 35351 apply to this document.
4 Classification and labeling
4.1 Product Categories
The product can be divided into two grades, PAg990 and PAg925, according to chemical composition; and divided into two categories, Class I and Class II, according to powder specifications.
Among them, Class I is applicable to the field of laser powder bed fusion additive manufacturing, and Class II is applicable to the field of electron beam powder bed fusion additive manufacturing.
4.2 Product Marking
Product marking consists of the following parts.
Indicates powder
Alloy composition (using chemical element symbols to express alloy composition,
The number after the element symbol indicates the mass fraction of the main element)
Category (Class I and Class II)
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