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GB/T 45449-2025: Revert materials for powder metallurgy superalloy
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 45449-2025 | English | 199 |
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Revert materials for powder metallurgy superalloy
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GB/T 45449-2025
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Basic data | Standard ID | GB/T 45449-2025 (GB/T45449-2025) | | Description (Translated English) | Revert materials for powder metallurgy superalloy | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H59 | | Classification of International Standard | 77.140.99 | | Word Count Estimation | 10,153 | | Date of Issue | 2025-03-28 | | Date of Implementation | 10/1/2025 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45449-2025: Revert materials for powder metallurgy superalloy---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.
ICS 77.140.99
CCSH59
National Standard of the People's Republic of China
Recycled powder high temperature alloy raw materials
Released on 2025-03-28
2025-10-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
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 was proposed by the China Iron and Steel Association.
This document is under the jurisdiction of the National Technical Committee on Steel Standardization (SAC/TC183).
This document was drafted by. AECC Beijing Institute of Aeronautical Materials, Beijing Bermuda Alloy Co., Ltd., Metallurgical Industry Information Standards
Institute, Beijing Gangyan Gaona Technology Co., Ltd., Institute of Metal Research, Chinese Academy of Sciences, AVIC Shangda High Temperature Alloy Materials Co., Ltd.
Jiangsu Longda Super Alloy Aviation Materials Co., Ltd., Jiangsu Metlink Special Alloy Co., Ltd., Jiangsu Qina New Materials Technology Co., Ltd.
company.
The main drafters of this document are. Zhang Huaxia, Gao Hongru, Liu Gang, Wang Lin, Zha Yukui, Liu Mingdong, Sun Yuan, Liang Zengshuai, Yu Lianxu, Wang Bo,
Jin Kaifeng, Ma Xiuping, Li Ailan, Yang Yanhong, Dong Tianxiang, Li Ning, Shang Huiliang.
Recycled powder high temperature alloy raw materials
1 Scope
This document specifies the classification and grading, ordering content, technical requirements, packaging, marking, transportation, storage and
The contents of the quality certificate, etc. describe the test methods and establish the acceptance rules.
This document is applicable to recycled raw materials used directly as raw materials when smelting powder high-temperature alloys.
2 Normative references
The contents of the following documents constitute 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 223 (all parts) Chemical analysis methods for steel and alloys
GB/T 11261 Determination of oxygen content of iron and steel - Pulse heating inert gas fusion - infrared absorption method
GB/T 14992 Classification and designation of high temperature alloys and intermetallic compound high temperature materials
GB/T 20123 Determination of total carbon and sulfur content of steel - Infrared absorption method after combustion in a high-frequency induction furnace (conventional method)
GB/T 20124 Determination of nitrogen content in steel - Inert gas fusion thermal conductivity method (conventional method)
GB/T 20127 (all parts) Determination of trace elements in steel and alloys
GB/T 32548 Determination of tin, antimony, cerium, lead and bismuth in iron and steel - Inductively coupled plasma mass spectrometry
GB/T 36164 Determination of multi-element content in high alloy steel - X-ray fluorescence spectrometry (conventional method)
GB/T 38939 Determination of multi-element content in nickel-based alloys Spark discharge atomic emission spectrometry (conventional method)
GB/T 45450 Terminology and classification of recycled high-temperature alloy raw materials
GB/T 45448-2025 Recycled deformed high temperature alloy raw materials
HB5220 (all parts) Chemical analysis methods for high temperature alloys
HB20241 (all parts) Spectroscopic analysis method for chemical composition of high temperature alloys
3 Terms and definitions
The terms and definitions defined in GB/T 45450 apply to this document.
4 Classification and grading
The classification and grading of recycled powder high-temperature alloy raw materials shall comply with the provisions of GB/T 45450.Different categories of recycled powder high-temperature alloy
See Appendix A for a schematic diagram of the raw material processing flow.
5.Order Content
The contract or order for recycled powdered superalloy raw material in accordance with this document shall contain the following.
a) This document number;
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