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ASTM B 796 : 2014 : REDLINE

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Nonmetallic Inclusion Content of Ferrous Powders Intended for Powder Forging (PF) Applications
Available format(s)

PDF

Superseded date

06-25-2020

Language(s)

English

Published date

09-01-2014

CONTAINED IN VOL. 02.05, 2017 Defines a metallographic method for determining the non-metallic inclusion level of powders intended for powder forging (PF) applications.

1.1This test method covers a metallographic method for determining the nonmetallic inclusion level of ferrous powders intended for powder forging (PF) applications.

1.2The test method covers repress powder forged test specimens in which there has been minimal lateral material flow (< 1%). The core region of the powder forged test specimen shall contain no porosity detectable at 100×.

1.3This test method is not suitable for determining the nonmetallic inclusion level of powder forged test specimens that have been forged such that the core region contains porosity. At the magnification used for this test method residual porosity is hard to distinguish from oxide inclusions. Too much residual porosity makes a meaningful assessment of the inclusion population impossible.

1.4The test method may be applied to materials that contain manganese sulfide (admixed or prealloyed) provided the near neighbor separation distance is changed from 30 μm to 15 μm.

Note 1:The test method may be applied to powder forged parts where there has been a greater amount of material flow provided:

The near neighbor separation distance is changed, or

The inclusion sizes agreed between the parties are adjusted for the amount of material flow.

1.5The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Committee
B 09
DocumentType
Redline
Pages
5
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

BS ISO 13947:2011 Metallic powders. Test method for the determination of non-metallic inclusions in metal powders using a powder-forged specimen
ASTM B 848 : 2015 : REDLINE Standard Specification for Powder Forged (PF) Ferrous Materials
05/19988333 DC : 0 BS ISO 13947 - METALLIC POWDERS - TEST METHOD FOR THE DETERMINATION OF NON-METALLIC INCLUSIONS IN METAL POWDERS USING A POWDER FORGED SPECIMEN
ISO 13947:2011 Metallic powders — Test method for the determination of non-metallic inclusions in metal powders using a powder-forged specimen

ASTM E 768 : 1999 : R2018 Standard Guide for Preparing and Evaluating Specimens for Automatic Inclusion Assessment of Steel

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