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GB/T 38981-2020 English PDF

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GB/T 38981-2020: Sintered-metal injection-moulded materials--Specifications
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PDF similar to GB/T 38981-2020


Standard similar to GB/T 38981-2020

GB/T 26052   GB/T 26047   GB/T 38977   GB/T 38987   

Basic data

Standard ID GB/T 38981-2020 (GB/T38981-2020)
Description (Translated English) Sintered-metal injection-moulded materials--Specifications
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H72
Classification of International Standard 77.160
Word Count Estimation 14,156
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 38981-2020: Sintered-metal injection-moulded materials--Specifications

---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.
Sintered-metal injection-moulded materials--Specifications ICS 77.160 H72 National Standards of People's Republic of China Specification for sintered metal injection molding materials (ISO 22068.2012, IDT) 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. The translation method used in this standard is equivalent to ISO 22068.2012 "Specifications for Sintered Metal Injection Molding Materials". The Chinese documents that have consistent correspondence with the normatively cited international documents in this standard are as follows. ---GB/T 228.1-2010 Metallic material tensile test Part 1.Room temperature test method (ISO 6892-1.2009, MOD); ---GB/T 230.1-2018 Rockwell hardness test of metallic materials Part 1.Test method (ISO 6508-1.2016, MOD); ---GB/T 3850-2015 Dense sintered metal material and cemented carbide density determination method (ISO 3369.2006, IDT); ---GB/T 4340.1-2009 Vickers hardness test of metallic materials Part 1.Test method (ISO 6507-1.2005, MOD); ---GB/T 7963-2015 sintered metal materials (excluding cemented carbide) tensile specimens (ISO 2740.2009, IDT); ---GB/T 9097-2016 Determination of apparent hardness and microhardness of sintered metal materials (excluding cemented carbide) (ISO 4498.2010, IDT); ---GB/T 10125-2012 artificial atmosphere corrosion test salt spray test (ISO 9227.2006, IDT); ---GB/T 13012-2008 Measurement method of DC magnetic properties of soft magnetic materials (IEC 60404-4.2000, IDT). This standard was proposed by China Nonferrous Metals Industry Association. This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). Drafting organizations of this standard. Shenzhen Zhucheng Technology Co., Ltd., Guangdong Institute of Materials and Processing, Zhejiang Xinhua Machinery Manufacturing Co., Ltd. Limited company. The main drafters of this standard. Zhang Yue, Kang Jun, Luo Hao, Lin Chiyu, Li Chun, Zeng Keli, Tan Lixin, Zhou Hongfa, Liu Fangzhou. Specification for sintered metal injection molding materials

1 Scope

This standard specifies the chemical composition, mechanical and physical properties of sintered metal injection molding materials. This standard applies to the selection of materials for design and materials engineers when using metal injection molding (MIM) processes to prepare parts. This standard does not apply to structural parts produced by other powder metallurgy processes, such as pressing-sintering and powder forging technology.

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. ISO 2740 Sintered metal materials (excluding cemented carbide) Tensile specimens (Sinteredmetalmaterials, excluding hardmetals-Tensiletestpieces) ISO 3369 Density determination of dense sintered metal materials and cemented carbide (Impermeables interedmetalmaterials andhardmetals-Determinationofdensity) ISO 4498 Sintered metal materials (excluding cemented carbide) Macro-hardness and micro-hardness determination (Sinteredmetalmate- rials, excludinghardmetals-Determinationofapparenthardnessandmicrohardness) ISO 6507-1 Vickers hardness test of metallic materials Part 1.Test method (Metalicmaterials-Vickers hardnesstest-Part 1.Testmethod) ISO 6508-1 Rockwell Hardness Test of Metallic Materials Part 1.Test Method (Metalicmaterials-Rockwelhard- nesstest-Part 1.Testmethod) ISO 6892-1 Tensile test of metallic materials Part 1.Room temperature test method (Metalicmaterials-Tensile testing-Part 1.Methodoftestatroomtemperature) ISO 9227 artificial atmosphere corrosion test salt spray test (Corrosiontestsinartificialatmospheres-Saltspray tests) IEC 60404-4 Magnetic Materials Part 4.DC Magnetic Performance Test Method for Soft Magnetic Materials (Magneticmaterials-Part 4. Methodsofmeasurementofd.c.magneticpropertiesofmagneticalysoftmaterials) ASTMD2638 Standard Method for Determining the True Density of Calcined Petroleum Coke by Helium Gas Densitometer (StandardTestMethodfor RealDensityofCalcinedPetroleumCokebyHeliumPycnometer) ASTMD4892 Standard Test Method for Density of Solid Hard Pitch (Helium Pycnometer Method) [StandardTestMethodfor DensityofSolidPitch(HeliumPycnometerMethod)]

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Tensile strength Rm

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