ASTM B603-07(2018)
(Specification)Standard Specification for Drawn or Rolled Iron-Chromium-Aluminum Alloys for Electrical Heating Elements
Standard Specification for Drawn or Rolled Iron-Chromium-Aluminum Alloys for Electrical Heating Elements
ABSTRACT
This specification covers annealed, drawn or rolled iron-chromium-aluminum alloy shapes used for electrical heating and resistance purposes. This specification contains the requirements for chemical composition, electrical resistance, mechanical properties and temperature-dependent changes in resistance of the alloys.
SCOPE
1.1 This specification covers annealed, drawn, or rolled shapes for electrical heating and resistance purposes of alloys consisting mainly of iron, chromium, and aluminum as detailed in Table 1.
1.2 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.
1.3 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.
1.4 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.
General Information
- Status
- Published
- Publication Date
- 31-Mar-2018
- Technical Committee
- B02 - Nonferrous Metals and Alloys
- Drafting Committee
- B02.10 - Thermostat Metals and Electrical Resistance Heating Materials
Relations
- Effective Date
- 01-Apr-2018
- Effective Date
- 01-Apr-2019
- Effective Date
- 01-Apr-2019
- Effective Date
- 01-Mar-2014
- Effective Date
- 01-May-2013
- Effective Date
- 01-May-2013
- Effective Date
- 01-May-2013
- Effective Date
- 01-Oct-2008
- Effective Date
- 01-Jun-2007
- Effective Date
- 01-May-2007
- Effective Date
- 01-May-2007
- Effective Date
- 01-May-2007
- Effective Date
- 01-Apr-2007
- Effective Date
- 01-May-2006
- Effective Date
- 10-Sep-2001
Overview
ASTM B603-07(2018) is the internationally recognized standard specification developed by ASTM International for drawn or rolled iron-chromium-aluminum alloys intended for use in electrical heating and resistance elements. This document establishes the essential requirements for the chemical composition, physical and mechanical properties, and various performance criteria critical to the reliability and effectiveness of these alloys when used in heating applications. As such, this standard supports manufacturers and users in ensuring product consistency, safety, and compliance with industry requirements.
Key Topics
- Material Scope: Applies to annealed, drawn, or rolled shapes composed predominantly of iron, chromium, and aluminum, detailed by specific composition ranges.
- Chemical Composition: Defines required percentages of iron, chromium, and aluminum to ensure stable performance under heating conditions.
- Mechanical Properties: Specifies requirements for elongation and physical uniformity based on wire size, ensuring mechanical integrity during use.
- Electrical Resistance: Establishes nominal resistivity and permissible tolerance values for both wire and strip forms, which is vital for predictable heating performance.
- Performance Testing:
- Resistance and resistivity are determined through referenced ASTM test methods to guarantee material suitability.
- Change in resistance with temperature must meet given criteria, which is crucial for accurate, reliable heating behavior.
- Durability is evaluated through accelerated life testing, as specified, to assess long-term performance in high-temperature environments.
- Product Inspection: Outlines marking, packaging, and identification requirements, ensuring clear traceability and compliance.
Applications
ASTM B603-07(2018) is essential for industries that require reliable electrical heating elements, including:
- Industrial Furnaces: Used in wire and ribbon heating elements for high-temperature applications such as annealing, sintering, or heat treatment.
- Domestic Appliances: Found in the heating elements of ovens, toasters, dryers, and similar equipment, where precise electrical resistance and longevity are essential.
- Resistors and Electrical Components: Utilized in manufacturing specialized resistors for temperature control and protection.
- Laboratory Equipment: Supporting precise thermal control in scientific and research instruments.
By defining robust criteria for iron-chromium-aluminum alloys, this standard ensures consistent quality while meeting the rigorous demands of both industrial and consumer markets. The focus on resistance properties and durability translates directly to improved safety, efficiency, and reliability of final products.
Related Standards
Organizations and professionals utilizing ASTM B603-07(2018) may also reference related ASTM standards for comprehensive compliance and testing, including:
- ASTM A751: Test Methods and Practices for Chemical Analysis of Steel Products.
- ASTM B63: Test Method for Resistivity of Metallically Conducting Resistance and Contact Materials.
- ASTM B70: Test Method for Change of Resistance with Temperature of Metallic Materials for Electrical Heating.
- ASTM B78: Test Method of Accelerated Life of Iron-Chromium-Aluminum Alloys for Electrical Heating.
For global application and regulatory alignment, this standard was developed according to internationally recognized WTO TBT Committee principles.
Keywords: electrical heating, heating elements, iron-chromium-aluminum alloys, resistance alloys, ASTM B603, electrical resistors, annealed wire, rolled strip, industrial standards, mechanical properties, chemical composition, ASTM International.
Get Certified
Connect with accredited certification bodies for this standard
Element Materials Technology
Materials testing and product certification.
Inštitut za kovinske materiale in tehnologije
Institute of Metals and Technology. Materials testing, metallurgical analysis, NDT.
Sponsored listings
Frequently Asked Questions
ASTM B603-07(2018) is a technical specification published by ASTM International. Its full title is "Standard Specification for Drawn or Rolled Iron-Chromium-Aluminum Alloys for Electrical Heating Elements". This standard covers: ABSTRACT This specification covers annealed, drawn or rolled iron-chromium-aluminum alloy shapes used for electrical heating and resistance purposes. This specification contains the requirements for chemical composition, electrical resistance, mechanical properties and temperature-dependent changes in resistance of the alloys. SCOPE 1.1 This specification covers annealed, drawn, or rolled shapes for electrical heating and resistance purposes of alloys consisting mainly of iron, chromium, and aluminum as detailed in Table 1. 1.2 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. 1.3 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. 1.4 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.
ABSTRACT This specification covers annealed, drawn or rolled iron-chromium-aluminum alloy shapes used for electrical heating and resistance purposes. This specification contains the requirements for chemical composition, electrical resistance, mechanical properties and temperature-dependent changes in resistance of the alloys. SCOPE 1.1 This specification covers annealed, drawn, or rolled shapes for electrical heating and resistance purposes of alloys consisting mainly of iron, chromium, and aluminum as detailed in Table 1. 1.2 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. 1.3 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. 1.4 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.
ASTM B603-07(2018) is classified under the following ICS (International Classification for Standards) categories: 77.100 - Ferroalloys. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM B603-07(2018) has the following relationships with other standards: It is inter standard links to ASTM B603-07(2013), ASTM B70-90(2019), ASTM B78-90(2019), ASTM A751-14, ASTM B70-90(2013), ASTM B78-90(2013), ASTM B63-07(2013), ASTM A751-08, ASTM A751-07a, ASTM B70-90(2007), ASTM B63-07, ASTM B78-90(2007), ASTM A751-07, ASTM A751-01(2006), ASTM A751-01. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM B603-07(2018) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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.
Designation: B603 −07 (Reapproved 2018)
Standard Specification for
Drawn or Rolled Iron-Chromium-Aluminum Alloys for
Electrical Heating Elements
This standard is issued under the fixed designation B603; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope B78 Test Method of Accelerated Life of Iron-Chromium-
Aluminum Alloys for Electrical Heating
1.1 This specification covers annealed, drawn, or rolled
shapes for electrical heating and resistance purposes of alloys
3. Terminology
consistingmainlyofiron,chromium,andaluminumasdetailed
in Table 1. 3.1 Definitions:
3.1.1 lot size, n—the lot size for determining compliance
1.2 The values stated in inch-pound units are to be regarded
with the requirements of this specification shall be one heat.
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
4. Significance and Use
and are not considered standard.
4.1 This specification on iron-chromium-aluminum alloys
1.3 This standard does not purport to address all of the
contains the requirements for chemistry, electrical resistance,
safety concerns, if any, associated with its use. It is the
mechanicalproperties,resistancechangewithtemperature,and
responsibility of the user of this standard to become familiar
packaging.
with all hazards including those identified in the appropriate
Safety Data Sheet (SDS) for this product/material as provided
4.2 Determination of properties is not required for routine
by the manufacturer, to establish appropriate safety, health,
acceptance of material unless specified by the purchaser.
and environmental practices, and determine the applicability
of regulatory limitations prior to use.
5. Chemical Requirements
1.4 This international standard was developed in accor-
5.1 The alloys shall conform to the requirements as to
dance with internationally recognized principles on standard-
chemical composition prescribed in Table 1.
ization established in the Decision on Principles for the
5.2 Samples for Chemical Analysis—Specimens for chemi-
Development of International Standards, Guides and Recom-
calanalysismaybetakeneitherfromthemeltorfromasample
mendations issued by the World Trade Organization Technical
of finished material that is representative of the lot.
Barriers to Trade (TBT) Committee.
5.3 Chemical Analysis—The chemical analysis shall be
2. Referenced Documents
made in accordance with accepted practices. See Test Methods
2.1 ASTM Standards: A751.
A751 Test Methods, Practices, and Terminology for Chemi-
cal Analysis of Steel Products 6. Physical Requirements
B63 Test Method for Resistivity of Metallically Conducting
6.1 The material shall be thoroughly and uniformly an-
Resistance and Contact Materials
nealed.
B70 Test Method for Change of Resistance With Tempera-
6.2 Wire shall conform to the following elongation require-
ture of Metallic Materials for Electrical Heating
ments:
Elongation in
Size 10-in. (250-mm)
This specification is under the jurisdiction of ASTM Committee B02 on
minimum, %
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
0.0035 in. (No. 39 Awg)(0.089 mm) and larger 12
B02.10 on Thermostat Metals and Electrical Resistance Heating Materials.
0.0031 to 0.0020 in. (Nos. 40 to 44 Awg) 6
Current edition approved April 1, 2018. Published April 2018. Originally
(0.079 to 0.015 mm)
approved in 1975. Last previous edition approved in 2013 as B603 – 07 (2013).
DOI: 10.1520/B0603-07R18.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 7. Nominal Resistivity
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.1 The nominal resistivity shall be the resistivity of the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. wire as quenched from a temperature above 1450°F (788°C).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B603 − 07 (2018)
TABLE 1 Chemical Requirements TABLE 2 Electrical Resistance Tolerance
Resistivity Range Composition Range, % Resistance
Class
Tolerance, %
Ω·cmil/ft µΩ·cm Al Cr
Round Wire:
I 825 to 920 135 to 150 5.00 to 6.00 20 to 24
0.0050-in. (0.127-mm) diameter and larger ±5
IIA 795 to 880 130 to 144 4.75 to 5.75 20 to 24
Finer than 0.0050 to 0.0020-in. (0.127 to ±8
IIB 770 to 855 130 to 144 4.00 to 5.25 20 to 24
0.051-mm) diameter, in
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...