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ASTM A 991/A991M : 2017

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 Conducting Temperature Uniformity Surveys of Furnaces Used to Heat Treat Steel Products
Available format(s)

Hardcopy , PDF

Superseded date

17-06-2022

Language(s)

English

Published date

20-04-2017

This test method covers the procedures used to conduct a temperature uniformity survey on a furnace used to heat treat steel products.

1.1This test method covers the procedures used to conduct a temperature uniformity survey on a furnace used to heat treat steel products. This method is used to determine the capability of the furnace to meet the permissible temperature variation specified in the applicable product specification, or as agreed to by the purchaser and supplier of heat treat services. Survey documentation requirements, and the procedure used to subsequently establish the furnace working zone, are defined in this test method.

1.2This test method covers heat treat furnaces in any of the following categories:

1.2.1Continuous or semi-continuous conveyance furnaces,

1.2.2Batch furnaces, and

1.2.3Salt or liquid baths and fluidized beds.

1.3This test method only applies when specified in the product specification or the purchase order.

1.4Controlling a heat treatment of steel products using thermocouples attached to the extremities of each load is an alternative to performing a furnace survey.

1.5By mutual agreement between the purchaser and the supplier of heat treat services, more stringent and/or additional requirements may be specified. The acceptance of any such additional requirements shall be dependent on negotiations with the supplier and must be included in the order as agreed upon by the purchaser and supplier.

1.6The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.7This 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.

1.8This 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.

Committee
A 01
DocumentType
Test Method
Pages
4
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM A 703/A703M : 2020 : REV A Standard Specification for Steel Castings, General Requirements, for Pressure-Containing Parts
ASTM A 1099/A1099M : 2020 Standard Specification for Modified Alloy Steel Forgings, Forged Bar, and Rolled Bar Commonly Used in Oil and Gas Pressure Vessels
ASTM A 961/A961M : 2021 Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
ASTM A 781/A781M : 2021 Standard Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
ASTM A 957/A957M : 2021 Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
ASTM A 985/A985M : 2021 Standard Specification for Steel Investment Castings General Requirements, for Pressure-Containing Parts
ASTM A 788/A788M : 2022 Standard Specification for Steel Forgings, General Requirements

ASTM E 220 : 2019 Standard Test Method for Calibration of Thermocouples By Comparison Techniques
ASTM E 230 : 1998 : EDT 1 Standard Specification and Temperature-Electromotive Force (EMF) Tables for Standardized Thermocouples
ASTM E 207 : 2008 : R2015 : EDT 1 Standard Test Method for Thermal EMF Test of Single Thermoelement Materials by Comparison with a Reference Thermoelement of Similar EMF-Temperature Properties
ASTM E 608/E608M : 2013 : R2019 Standard Specification for Mineral-Insulated, Metal-Sheathed Base Metal Thermocouples
ASTM E 207 : 2021 Standard Test Method for Thermal EMF Test of Single Thermoelement Materials by Comparison With Reference Thermoelement of Similar EMF-Temperature Properties

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