77.150.70 - Cadmium and cobalt products
ICS 77.150.70 Details
Cadmium and cobalt products
Cobaltprodukte. Cadmiumprodukte
Produits en cadmium et cobalt
Kadmijevi in kobaltovi izdelki
General Information
Frequently Asked Questions
ICS 77.150.70 is a classification code in the International Classification for Standards (ICS) system. It covers "Cadmium and cobalt products". The ICS is a hierarchical classification system used to organize international, regional, and national standards, facilitating the search and identification of standards across different fields.
There are 17 standards classified under ICS 77.150.70 (Cadmium and cobalt products). These standards are published by international and regional standardization bodies including ISO, IEC, CEN, CENELEC, and ETSI.
The International Classification for Standards (ICS) is a hierarchical classification system maintained by ISO to organize standards and related documents. It uses a three-level structure with field (2 digits), group (3 digits), and sub-group (2 digits) codes. The ICS helps users find standards by subject area and enables statistical analysis of standards development activities.
ABSTRACT
This specification covers cobalt-chromium-nickel-molybdenum-tungsten alloy (UNS R31233) in the form of a rod for wear applications and general corrosion service. The requirements for the chemical composition hardness and tolerance, tensile strength, yield strength, and elongation are specified.
SCOPE
1.1 This specification2 covers cobalt-chromium-nickel-molybdenum-tungsten alloy in the form of bar or rod. While the alloy is typically used for wear applications and general corrosion service, it is not limited to this usage.
1.2 UNS R31233 is the only alloy currently allowed to be certified to this specification.
1.3 The 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.
1.4 This 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 Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
- Technical specification4 pagesEnglish languagesale 15% off
- Technical specification4 pagesEnglish languagesale 15% off
ABSTRACT
This specification covers the standard for cobalt-chromium-nickelmolybdenum-tungsten alloy UNS R31233 in the form of rolled plate, sheet, and strip proposed for use in wear applications and general corrosion service. Materials should conform to mechanical properties such as tensile strength, yield strength, and elongation.
SCOPE
1.1 This specification covers cobalt-chromium-nickel-molybdenum-tungsten alloy UNS R31233 in the form of rolled plate, sheet, and strip for wear applications and general corrosion service.
1.2 The following products are covered under this specification:
1.2.1 Sheet and Strip—Hot or cold rolled, annealed and descaled unless solution-annealing is performed in an atmosphere yielding a bright finish.
1.2.2 Plate—Hot rolled, solution-annealed, and descaled.
1.3 The 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.
1.4 This 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 Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
- Technical specification2 pagesEnglish languagesale 15% off
SIGNIFICANCE AND USE
Silver-cadmium oxide is a popular contact material that has been used in a wide range of applications in switches, relays and contactors for switching lamps, motors and resistive loads. Silver-cadmium oxide is a composite material consisting of a metal matrix, silver, with a metal oxide, cadmium oxide, dispersed throughout the matrix. Compositions of up to 30 % cadmium are made, but most applications use silver-cadmium oxide in the range of 10 to 15 % cadmium oxide by weight. Several different processes are used for manufacturing silver-cadmium oxide material and it should be understood that the manufacturing method has an influence on the properties of the material such as arc erosion resistance, welding resistance, arc mobility and contact resistance. Since the performance of contacts in a device is dependent on numerous factors outside the contact itself (opening speed, closing speed, contact pressure, contact bounce and many more device parameters), the guide cannot ensure performance in specific applications.
Arc erosion resistance and welding resistance are improved by the addition of cadmium oxide to the silver matrix. The contact resistance is raised by this addition but still is low. Cadmium oxide and silver do not alloy so the silver matrix retains its high conductivity. Silver-cadmium oxide contacts are used in current ranges of a few amperes to several hundred amperes.
Silver-cadmium oxide contact material is available as wire, silver-clad wire, sheet, strip, toplay, inlay and overlay sheet or strip, discrete contact parts, brazed contact assemblies, solid and composite rivet contacts and clad contact tapes.
Materials with higher cadmium oxide contents have lower material costs but may have higher processing costs due to lower formability.
SCOPE
1.1 This guide provides guidelines for users and manufacturers of silver-cadmium oxide material produced in strip, rod, wire, and part form for electrical contact applications.
1.2 This 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.
WITHDRAWN RATIONALE
This guide provides guidelines for users and manufacturers of silver-cadmium oxide material produced in strip, rod, wire, and part form for electrical contact applications.
Formerly under the jurisdiction of Committee B02 on Nonferrous Metals and Alloys, this guide was withdrawn in January 2021 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
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SIGNIFICANCE AND USE
This guide is recommended for use in analyzing the sodium and potassium content of silver-cadmium oxide materials and is meant to be used in conjunction with standard methods of atomic absorption spectroscopy. The recommended procedures cite methods for minimizing extraneous sodium and potassium contamination through use of specific handling procedures and shorter sample preparation methods. This guide also recommends procedures that prevent the formation of nonstable and potentially hazardous silver-acetylene compounds.
SCOPE
1.1 This guide describes procedures for use in conducting analysis of silver-cadmium oxide materials for sodium and potassium content. The exact methods for the performance of this testing are not stated since many different procedures are equally applicable. This guide points out specific procedures for decreasing the chance of recognized potential errors and specifies methods for increasing the sensitivity of the testing.
1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user 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. For specific precautions see Sections 4 and 6.
1.3 Whoever uses this standard should consult the Material Safety Data Sheet concerning the products involved.
WITHDRAWN RATIONALE
This guide describes procedures for use in conducting analysis of silver-cadmium oxide materials for sodium and potassium content. The exact methods for the performance of this testing are not stated since many different procedures are equally applicable. This guide points out specific procedures for decreasing the chance of recognized potential errors and specifies methods for increasing the sensitivity of the testing.
Formerly under the jurisdiction of Committee B02 on Nonferrous Metals and Alloys, this guide was withdrawn in May 2015. This standard is being withdrawn without replacement due to its limited use by industry.
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