ASTM A1080-15
(Practice)Standard Practice for Hot Isostatic Pressing of Steel, Stainless Steel, and Related Alloy Castings
Standard Practice for Hot Isostatic Pressing of Steel, Stainless Steel, and Related Alloy Castings
ABSTRACT
This practice covers general requirements for Hot Isostatic Pressing (HIP) of steel, stainless steel, and related alloy castings. HIP is a solid state process which applies heat and pressure simultaneously to objects in an autoclave via an inert gas in such a way as to eliminate internal voids and obtain desired properties. Inert gas is a non-oxidizing gas used for pressurizing a HIP vessel. This practice deals with quality requirements, autoclave type/qualification, temperature uniformity, temperature measurement and control, pressure measurement and control, and gas measurement.
SCOPE
1.1 This practice covers general requirements for Hot Isostatic Pressing (HIP) of steel, stainless steel, and related alloy castings.
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: A1080 − 15
Standard Practice for
Hot Isostatic Pressing of Steel, Stainless Steel, and Related
1
Alloy Castings
This standard is issued under the fixed designation A1080; 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* 3.1.1 autoclave, n—a pressure-containing vessel used in the
HIP process.
1.1 This practice covers general requirements for Hot Iso-
static Pressing (HIP) of steel, stainless steel, and related alloy 3.1.2 hot isostatic pressing (HIP), n—a solid state process
castings.
which applies heat and pressure simultaneously to objects in an
autoclave via an inert gas in such a way as to eliminate internal
1.2 Units—The values stated in SI units are to be regarded
voids and obtain desired properties.
as standard. No other units of measurement are included in this
standard. 3.1.3 inert gas, n—a nonoxidizing gas used for pressurizing
a HIP vessel.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Ordering Information
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4.1 The authorization or requirement for hot isostatic press-
bility of regulatory limitations prior to use.
ing (HIP) shall be agreed upon between purchaser and supplier
and must be documented.
2. Referenced Documents
4.1.1 The Supplementary Requirements of the Common
2
2.1 ASTM Standards:
RequirementsSpecificationscontainasectionforauthorization
A703 Specification for Steel Castings, General
of hot isostatic pressing (HIP) of castings. These Common
Requirements, for Pressure-Containing Parts
Requirements Specifications include, but are not limited to:
A781 Specification for Castings, Steel and Alloy, Common
A703 Specification for Steel Castings, General Requirements, for Pressure-
Requirements, for General Industrial Use
Containing Parts
A781 Specification for Castings, Steel and Alloy, Common Requirements, for
A957 Specification for Investment Castings, Steel andAlloy,
General Industrial Use
Common Requirements, for General Industrial Use
A957 Specification for Investment Castings, Steel and Alloy, Common
A985 Specification for Steel Investment Castings General
Requirements, for General Industrial Use
A985 Specification for Steel Investment Castings General Requirements, for
Requirements, for Pressure-Containing Parts
Pressure-Containing Parts
E220 Test Method for Calibration of Thermocouples By
4.2 The HIP processing parameters shall be as agreed upon
Comparison Techniques
3
between the purchaser and supplier.
2.2 AMS Standards:
AMS 2750 Pyrometry
5. Quality Requirements
3. Terminology
5.1 The HIPprocess shall at a minimum document and have
3.1 Definitions: traceability for:
5.1.1 Operating parameters for each autoclave/vessel used
in production.
1
This practice is under the jurisdiction of ASTM Committee A01 on Steel,
5.1.2 Software and instrumentation used for control and
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
documentation purposes.
A01.18 on Castings.
Current edition approved March 1, 2015. Published March 2015. Originally
5.1.3 Gas used to backfill or quench.
approved in 2012. Last previous edition approved in 2014 as A1080 – 14. DOI:
5.1.4 Contact fixturing within the autoclave.
10.1520/A1080–15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.2 Methods of gas dilution, replenishment, reuse, and
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
purification shall be documented in a written procedure.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3
5.3 Fixtures, plates, trays, spacers, hangers, containers and
Available from SAE International (SAE), 400 Commonwealth Dr.,Warrendale,
PA 15096-0001, http://www.sae.org. baskets shall be made of a material compatible with the parts
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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A1080 − 15
to be treated or shall be adequately isolated to assure that monitoring thermocouple shall not vary more than the allow-
undesirable reactions, product contamination and distortions able tolerance as specified by the purchaser.
do not occur.
8. Temperature Measurement and Control
5.4 Prior to pressurization, adequate care shall be taken to
8.1 Temperature measuring devices shall be provided for
ensure that no
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A1080 − 14 A1080 − 15
Standard Practice for
Hot Isostatic Pressing of Steel, Stainless Steel, and Related
1
Alloy Castings
This standard is issued under the fixed designation A1080; 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*
1.1 This practice covers general requirements for Hot Isostatic Pressing (HIP) of steel, stainless steel, and related alloy castings.
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this
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 establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A703 Specification for Steel Castings, General Requirements, for Pressure-Containing Parts
A781 Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
A957 Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
A985 Specification for Steel Investment Castings General Requirements, for Pressure-Containing Parts
E220 Test Method for Calibration of Thermocouples By Comparison Techniques
3
2.2 AMS Standards:
AMS 2750 Pyrometry
3. Terminology
3.1 Definitions:
3.1.1 autoclave, n—a pressure-containing vessel used in the HIP process.
3.1.2 hot isostatic pressing (HIP), n—a solid state process which applies heat and pressure simultaneously to objects in an
autoclave via an inert gas in such a way as to eliminate internal voids and obtain desired properties.
3.1.3 inert gas, n—a nonoxidizing gas used for pressurizing a HIP vessel.
4. Significance and Use
4.1 The authorization or requirement for hot isostatic pressing (HIP) shall be agreed upon between purchaser and supplier and
must be documented.
4.1.1 The Supplementary Requirements of the Common Requirements Specifications contain a section for authorization of hot
isostatic pressing (HIP) of castings. These Common Requirements Specifications include, but are not limited to:
A703 Specification for Steel Castings, General Requirements, for Pressure-Containing Parts
A781 Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
A957 Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
A985 Specification for Steel Investment Castings General Requirements, for Pressure-Containing Parts
4.2 The HIP processing parameters shall be as agreed upon between the purchaser and supplier.
1
This practice is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.18
on Castings.
Current edition approved June 1, 2014March 1, 2015. Published June 2014March 2015. Originally approved in 2012. Last previous edition approved in 20122014 as A1080
– 12.14. DOI: 10.1520/A1080–14.10.1520/A1080–15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A1080 − 15
4.3 When agreed between purchaser and supplier, HIP may be substituted for required thermal treatment provided all
requirements for that treatment are met.
4. Ordering Information
4.1 The authorization or requirement for hot isostatic pressing (HIP) shall be agreed upon between purchaser and supplier and
must be documented.
4.1.1 The Supplementary Requirements of the Common Requirements Specifications contain a section for authorization of hot
isostatic pressing (HIP) of castings. These Common Requirements Specifications include, but are not limited to:
A703 Specification for Steel Castings, General Requirements, for Pressure-Containing Part
...
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