Name: ASTM B 890 : 2007 : R2012
Brand: ASTM
Price: 75.00 USD

ASTM B 890 : 2007 : R2012

Superseded

Standard Test Method for Determination of Metallic Constituents of Tungsten Alloys and Tungsten Hardmetals by X-Ray Fluorescence Spectrometry

Available format(s)

Hardcopy , PDF

Superseded date

10-29-2020

Language(s)

English

Published date

11-12-2012

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 02.05, 2017 Describes a procedure for the determination of the concentration, generally reported as mass percent, of the metallic constituents of tungsten-based alloys and hardmetals utilizing wavelength dispersive X-ray fluorescence spectrometry (XRF).

1.1This test method describes a procedure for the determination of the concentration, generally reported as mass percent, of the metallic constituents of tungsten-based alloys and hardmetals utilizing wavelength dispersive X-ray fluorescence spectrometry (XRF). This test method incorporates the preparation of standards using reagent grade metallic oxides, lithium-borate compounds, and fusion techniques. This test method details techniques for preparing representative specimens of both powder and sintered tungsten-based material. This test method is accurate for a wide range of compositions, and can be used for acceptance of material to grade specifications.

1.2This test method is applicable to mixtures of tungsten or tungsten carbide with additions of refractory metal carbides and binder metals. Table 1 lists the most common elemental constituents and their concentration range. Note that many of these occur as metallic carbides.

TABLE 1 Elemental Constituents and Concentration Range

Element	Concentration, Mass % (minimum - maximum)
Chromium (Cr)	0.05 - 5.0
Cobalt (Co)	0.05 - 40
Hafnium (Hf)	0.05 - 2.0
Iron (Fe)	0.05 - 2.0
Molybdenum (Mo)	0.05 - 5.0
Nickel (Ni)	0.05 - 30
Niobium (Nb)	0.05 - 15
Tantalum (Ta)	0.05 - 30
Titanium (Ti)	0.05 - 30
Vanadium (V)	0.05 - 2.0

1.3This 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	Test Method
Pages	5
ProductNote	Reconfirmed 2012
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM B 890 : 2020
Supersedes	ASTM B 890 : 2007

ASTM E 1361 : 1990 : R1999	Standard Guide for Correction of Interelement Effects in X-Ray Spectrometric Analysis
ASTM E 1361 : 2002 : R2007	Standard Guide for Correction of Interelement Effects in X-Ray Spectrometric Analysis
ASTM E 1361 : 2002	Standard Guide for Correction of Interelement Effects in X-Ray Spectrometric Analysis
ASTM E 1361 : 2002 : R2014 : EDT 1	Standard Guide for Correction of Interelement Effects in X-Ray Spectrometric Analysis