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GB/T 39251-2020Additive manufacturing—Methods to characterize performance of metal powders (English PDF)

增材制造 金属粉末性能表征方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

November 19, 2020

Implementation date

June 1, 2021

Scope

GB/T 39251-2020 is the English-translated version of 增材制造 金属粉末性能表征方法.

GB/T 39251-2020 is the Chinese standard "Additive manufacturing—Methods to characterize performance of metal powders". Its scope clause reads: This standard specifies the test items, sampling, test methods and test reports for the performance characterization of metal powders for additive manufacturing.

This standard applies to metal powders for additive manufacturing. Its clauses include terms and definitions.

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Document preview — GB/T 39251-2020

National Standard of the People's Republic of China

ICS
25.030
Classification
H 70

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • 1 Scope
  • 2 Normative references
  • 3 Terms and definitions
  • 3.1 Hollow powder

1 Scope

This standard specifies the test items, sampling, test methods and test reports for the performance characterization of metal powders for additive manufacturing.

This standard applies to metal powders for additive 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 document.

For undated references, the latest version (including all amendments) applies to this document.

GB/T 223 (all parts) Steel and alloy

GB/T 1479.1 Determination of bulk density of metal powder Part 1.Funnel method

GB/T 1479.2 Determination of the bulk density of metal powders Part 2.Scout volumetric method

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 3500 Terminology of Powder Metallurgy

GB/T 4698 (all parts) Sponge titanium, titanium and titanium alloy chemical analysis methods

GB/T 5121 (all parts) Methods for chemical analysis of copper and copper alloys

GB/T 5161 Determination of effective density of metal powders by liquid immersion method

GB/T 5162 Determination of Tap Density of Metal Powder

GB/T 5314 Powder sampling method for powder metallurgy

GB/T 13748 (all parts) Methods for chemical analysis of magnesium and magnesium alloys

GB/T 16418 Terminology of particle system

GB/T 16913 Dust physical properties test method

GB/T 19077 Particle size distribution laser diffraction method

GB/T 20975 (all parts) Aluminum and aluminum alloy chemical analysis methods

GB/T 21649.2-2017 Particle Size Analysis Image Analysis Method Part 2.Dynamic Image Analysis Method

GB/T 29070 General requirements for non-destructive testing of industrial computer tomography (CT) testing

GB/T 35351 Terminology for Additive Manufacturing

YS/T 539 (all parts) chemical analysis method for nickel-based alloy powder

YS/T 1297 Determination of sphericity of titanium and titanium alloy powder

3 Terms and definitions

The following terms and definitions defined in GB/T 3500, GB/T 16418, and GB/T 35351 apply to this document. For ease of use,

Some terms and definitions in GB/T 16418 are repeatedly listed below.

3.1 Hollow powder

The inside contains metal powder with closed pores.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

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