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ASTM A1080-12

(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

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.  
4.3 When agreed between purchaser and supplier, HIP may be substituted for required thermal treatment provided all requirements for that treatment are met.
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.

General Information

Status
Historical
Publication Date
30-Apr-2012
ICS
77.140.01 - Iron and steel products in general
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.18 - Castings
Current Stage
Ref Project

Relations

Replaced By
ASTM A1080-14 - Standard Practice for Hot Isostatic Pressing of Steel, Stainless Steel, and Related Alloy Castings
Effective Date
01-Jun-2014
Referred By
ASTM F3184-16 - Standard Specification for Additive Manufacturing Stainless Steel Alloy (UNS S31603) with Powder Bed Fusion
Effective Date
01-May-2012
Referred By
ASTM F3490-21 - Standard Practice for Additive Manufacturing — General Principles — Overview of Data Pedigree
Effective Date
01-May-2012

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ASTM A1080-12 - Standard Practice for Hot Isostatic Pressing of Steel, Stainless Steel, and Related Alloy CastingsASTM A1080-12 - Standard Practice for Hot Isostatic Pressing of Steel, Stainless Steel, and Related Alloy Castings
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ASTM A1080-12 - Standard Practice for Hot Isostatic Pressing of Steel, Stainless Steel, and Related Alloy Castings
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A1080 − 12
StandardPractice for
Hot Isostatic Pressing of Steel, Stainless Steel, and Related
1
Alloy Castings
This standard is issued under the fixed designation ; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
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-
3.1.2 hot isostatic pressing (HIP), n—a solid state process
static Pressing (HIP) of steel, stainless steel, and related alloy
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
3.1.3 inert gas, n—a nonoxidizing gas used for pressurizing
standard.
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. Significance and Use
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
RequirementsSpecificationscontainasectionforauthorization
2.1 ASTM Standards:
of hot isostatic pressing (HIP) of castings. These Common
A703 Specification for Steel Castings, General
Requirements Specifications include, but are not limited to:
Requirements, for Pressure-Containing Parts
A703 Specification for Steel Castings, General Requirements, for Pressure-
A781 Specification for Castings, Steel and Alloy, Common
Containing Parts
Requirements, for General Industrial Use
A781 Specification for Castings, Steel and Alloy, Common Requirements, for
A957 Specification for Investment Castings, Steel andAlloy,
General Industrial Use
A957 Specification for Investment Castings, Steel and Alloy, Common
Common Requirements, for General Industrial Use
Requirements, for General Industrial Use
A985 Specification for Steel Investment Castings General
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
between the purchaser and supplier.
3
2.2 AMS Standards:
4.3 When agreed between purchaser and supplier, HIP may
AMS 2750 Pyrometry
be substituted for required thermal treatment provided all
requirements for that treatment are met.
3. Terminology
3.1 Definitions:
5. Quality Requirements
5.1 The HIPprocess shall at a minimum document and have
traceability for:
1
This practice is under the jurisdiction of ASTM Committee A01 on Steel,
5.1.1 Operating parameters for each autoclave/vessel used
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
in production.
A01.18 on Castings.
Current edition approved May 1, 2012. Published June 2012. DOI: 10.1520/
5.1.2 Software and instrumentation used for control and
A1080–12
documentation purposes.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1.3 Gas used to backfill or quench.
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 5.1.4 Contact fixturing within the autoclave.
the ASTM website.
3
5.2 Methods of gas dilution, replenishment, reuse, and
Available from SAE International (SAE), 400 Commonwealth Dr.,Warrendale,
PA 15096-0001, http://www.sae.org. purification shall be documented in a written procedure.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A1080 − 12
5.3 Fixtures, plates, trays, spacers, hangers, containers and the allowable tolerance as specified by the purchaser. After
baskets shall be made of a material compatible with the parts reaching thermal equilibrium temperature variation of any load
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 pre
...

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SCOPE
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Annex A6    
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Annex A8  
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Annex A9  
Procedure for Use and Control of Heat-cycle Simulation  
Annex A10  
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SCOPE
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1.1 This specification covers commercial, structural, high-strength low-alloy, and ultra-high strength steel sheet in coils and cut lengths produced by the twin-roll casting process.  
1.2 The steel sheet is available in the designations listed in Section 4.  
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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 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 nonconformance with the 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, 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.

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This specification covers the standard for martensitic stainless steel for various structural, architectural, pressure vessel, and heat-resisting applications. The material shall undergo heat-treatment by tempering. The steel shall conform to the requirements as to chemical composition specified for carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, and nitrogen. Mechanical testing shall be performed on the steel and shall conform to the specified values in mechanical properties such as yield strength, tensile strength, elongation, and Brinell hardness.
SCOPE
1.1 This specification covers martensitic stainless steels for various structural, architectural, pressure vessel, and heat-resisting applications. The mechanical properties of these steels are customarily, but not necessarily, developed by a suitable heat treatment generally referred to as tempering.  
1.2 Steel products under this specification are available in two grades:
Grade  
Yield Strength, min, ksi [MPa]  
40 [275]  
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5.3 Methods 1 and 2 will provide a quantitative rating of the inclusion content in half-severity number increments from 0 to 5 for each inclusion type and thickness (Method D of Test Method E45), and in tabulated in Table 2. Test Method E45 ratings by SEM may differ from those determined following E45 because of the use of chemistry in the classifications. In order to differentiate E45 ratings obtained using the SEM from traditional ratings using light microscopy, the ratings obtained using Method 1 or 2 of this Test Method shall be identified as E45-SEM1 and E45-SEM2, respectively.  
5.4 Method 3 defines procedures to analyze and report inclusions by arbitrary size distribution and chemical classifications. It may be made applicable to any material by appropriate choice of these classifications.  
5.4.1 Method 3 determines and reports basic (as used in Test Method E1245) stereological measurements (for example, volume fraction of sulfides and oxides, the number of sulfides or oxides per sq...
SCOPE
1.1 This test method covers procedures to obtain particle size distribution, chemical classification, and Test Methods E45 ratings of inclusions in steels using an automated scanning electron microscope (SEM) with X-ray analysis and automatic image analysis capabilities.  
1.2 There are three discrete methods described. Method 1 is the SEM analog of Test Method E45, which uses image analysis and light microscopy to produce automated Test Methods E45 ratings. Method 2 produces similar ratings based predominantly on sorting inclusions by chemistry into the traditional classes defined in Test Methods E45. Method 3 is recommended when explicit detail is needed on particular inclusion types, not necessarily defined in Test Methods E45, such as to verify the composition of inclusions in inclusion-engineered steel. Method 3 reports stereological parameters such as volume or number fraction, rather than Test Methods E45 type ratings.  
1.3 This test method deals only with the recommended test methods and nothing in it should be construed as defining or establishing limits of acceptability for any grade of steel or other alloy where the method is appropriate.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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