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ASTM B 684 : 1997 : R2012

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 Specification for Platinum-Iridium Electrical Contact Materials
Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

01-11-2012

CONTAINED IN VOL. 02.04, 2015 Includes 85% platinum - 15% iridium alloy, and 90% platinum - 10% iridium alloy, in the form of rod, wire, strip, and sheet material for electrical contacts.

1.1This specification covers an 85 % platinum—15 % iridium alloy, and a 90 % platinum—10 % iridium alloy, in the form of rod, wire, strip, and sheet material for electrical contacts.

TABLE 1 Chemical Requirements

Element

85 Pt/15 Ir

90 Pt/10 Ir

Weight %

Weight %

Pt

balance

balance

Ir

14.50-15.50

9.50-10.50

Total Impurities

0.2 max.

0.2 max.

Total Platinum Group (Pd, Rh, Os, Ru), Au

0.1 max.

0.1 max.

Total Other Impurities (including the
 elements below)

0.1 max.

0.1 max.

Pb, Sb, Bi, Sn, As, Cd, Zn

0.01 max each

0.01 max each

Fe

0.015 max each

0.015 max each

Other elements

0.02 max each

0.02 max each


1.2The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3The original specification, B684 - 81, covered the 85 % platinum 15 % iridium alloy. The 1997 revision of this specification added the 90 % platinum 10 % iridium alloy.

1.4This 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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

Committee
B 02
DevelopmentNote
Supersedes MIL E 46065 (07/2004)
DocumentType
Standard
Pages
3
ProductNote
Reconfirmed 2012
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM B 277 : 1995 Standard Test Method for Hardness of Electrical Contact Materials
ASTM E 384 : 2017 : REDLINE Standard Test Method for Microindentation Hardness of Materials
ASTM E 8 : 2004 Standard Test Methods for Tension Testing of Metallic Materials

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$108.03
Including GST where applicable

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