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GB/T 38975-2020: Tantalum and tantalum alloy powder for additive manufacturing
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 38975-2020 | English | 189 |
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Tantalum and tantalum alloy powder for additive manufacturing
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GB/T 38975-2020
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Basic data | Standard ID | GB/T 38975-2020 (GB/T38975-2020) | | Description (Translated English) | Tantalum and tantalum 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 | 10,125 | | Date of Issue | 2020-07-21 | | Date of Implementation | 2021-06-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 38975-2020: Tantalum and tantalum alloy powder for additive manufacturing---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.
Tantalum and tantalum alloy powder for additive manufacturing
ICS 77.160;25.030
H71
National Standards of People's Republic of China
Tantalum and Tantalum Alloy Powder for Additive Manufacturing
2020-07-21 released
2021-06-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by China Nonferrous Metals Industry Association.
This standard is organized by the National Nonferrous Metal Standardization Technical Committee (SAC/TC243) and the National Additive Manufacturing Standardization Technical Committee
(SAC/TC562) under common jurisdiction.
Drafting organizations of this standard. Xi'an Sailong Metal Materials Co., Ltd., Northwest Research Institute of Nonferrous Metals, Guangdong Province Materials and Processing Research
Institute, Non-ferrous Metals Technology and Economic Research Institute, Guangzhou Sailong Additive Manufacturing Co., Ltd., Xi'an Ouzhong Material Technology Co., Ltd., AVIC Matt
Fenye Technology (Beijing) Co., Ltd., Zhuzhou Gaoli New Materials Co., Ltd., Northwestern Polytechnical University, China Machinery Research Institute of Standard Technology (Beijing)
Co., Ltd., Ningxia Dongfang Tantalum Industry Co., Ltd., Anhui Yingyuan New Material Technology Co., Ltd., Qingyuan Jiazhi New Material Research Institute, Guangdong Zhiyuan
New Materials Co., Ltd., Guangdong Guangsheng Rare Metal Photoelectric New Materials Co., Ltd., Zhuhai Tianwei Feima Printing Consumables Co., Ltd.
The main drafters of this standard. Tang Huiping, He Weiwei, Zhu Jilei, Xiang Changshu, Yang Kun, Liu Xin, Chen Binke, Guo Yu, Qiu Sha, Wu Yanhua,
Lai Yunjin, Zhang Guojun, Tang Jianzhong, Yu Jun, Li Haibin, Ren Ping, Xiao Haibo, Wu Lijue, Zheng Shilin, Huang Shuang, Zhang Tao.
Tantalum and Tantalum Alloy Powder for Additive Manufacturing
1 Scope
This standard specifies the technical requirements, test methods, inspection rules and signs, packaging, transportation, storage, and storage of tantalum and tantalum alloy powder for additive manufacturing.
The content of the quality certificate, purchase order (or contract).
This standard applies to additives prepared by plasma rotating electrode method, plasma atomization method, plasma spheroidization method, hydrogenation dehydrogenation method and other processes
Tantalum and tantalum alloy powder for manufacturing.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 1479 (all parts) Determination of bulk density of metal powder
GB/T 1480 Metal powder dry sieving method for determination of particle size
GB/T 1482 Standard funnel method for determination of fluidity of metal powder (Hall flow meter)
GB/T 5162 Determination of Tap Density of Metal Powder
GB/T 5314 Powder sampling method for powder metallurgy
GB/T 15076 (all parts) Chemical analysis methods for tantalum and niobium
GB/T 19077 Particle size analysis laser diffraction method
YS/T 1297 Determination of sphericity of titanium and titanium alloy powder
3 Technical requirements
3.1 Chemical composition
The products are divided into three grades. Ta1, Ta2, TaNb3 according to their chemical composition, and their chemical composition should meet the requirements of Table 1.The buyer has special requirements
The time of request shall be determined through negotiation between the supplier and the buyer.
Table 1 Chemical composition
Grade
Chemical composition (mass fraction)/%
Ta Nb
Fe
Ti
Mo
Si
Ni
Ta1 margin ≤0.050 0.010 0.010 0.0030 0.030 0.010 0.005 0.010 0.010 0.005 0.010
Ta2 margin ≤0.100 0.050 0.030 0.0050 0.150 0.030 0.010 0.040 0.020 0.030 0.010
TaNb3 margin 1.5~3.5 0.020 0.025 0.0050 0.030 0.030 0.005 0.040 0.030 0.030 0.005
3.2 Granularity
The products are divided into three categories according to their uses, and their particle size should meet the requirements of Table 2.When the buyer has special requirements, it shall be determined through negotiation between the supplier and the buyer.
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