ASTM A1028-03(2015)

Standard Specification for Stainless Steel Bars for Compressor and Turbine Airfoils (Withdrawn 2021)

ABSTRACT
This specification covers stainless steel bars for compressor and turbine bucket, blade, and airfoil applications. Materials shall be produced by basic electric furnace melting process with argon-oxygen-decarburization refining or by vacuum ladle degassing. Electro-slag remelting shall also be conducted unless otherwise specified by the purchaser. Two complete heat treatments, consisting of an austenize, quench, and temper, shall be conducted. Straightening, stress relieving, and water or oil quenching shall be executed as well. Steel bars shall adhere to chemical composition and mechanical property requirements, including tensile strength, yield strength, elongation, reduction of area, impact strength, and Brinell hardness.
SCOPE
1.1 This specification covers stainless steel bars for compressor and turbine bucket, blade, and airfoil applications.  
1.2 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
WITHDRAWN RATIONALE
This specification covers stainless steel bars for compressor and turbine bucket, blade, and airfoil applications.
Formerly under the jurisdiction of Committee A01 on Steel, Stainless Steel and Related Alloys, this specification was withdrawn in November 2021 due to its lack of value to the industry.

General Information

• Status: Withdrawn
• Publication Date: 28-Feb-2015
• Withdrawal Date: 08-Nov-2021
• ICS: 77.140.20 - Stainless steels
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.17 - Flat-Rolled and Wrought Stainless Steel

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:A1028 −03 (Reapproved 2015)
Standard Specification for
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Stainless Steel Bars for Compressor and Turbine Airfoils
This standard is issued under the fixed designation A1028; 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.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4.1.1 Quantity (weight or number of pieces).
4.1.2 Grade and Class (Table 3).
1.1 This specification covers stainless steel bars for com-
4.1.3 Applicable dimensions including size, thickness,
pressor and turbine bucket, blade, and airfoil applications.
width, and length.
1.2 The values stated in inch-pound units are to be regarded
4.1.4 Whetherbarsaretoberolledasbarsorcutfromplate.
asstandard.Nootherunitsofmeasurementareincludedinthis
4.1.5 Supplementary Requirements.
standard.
5. General Requirements
2. Referenced Documents
5.1 Product furnished to this specification shall conform to
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2.1 ASTM Standards:
the requirements of Specification A484/A484M including any
A275/A275MPracticeforMagneticParticleExaminationof
supplementary requirements that are indicated in the purchase
Steel Forgings
order. Failure to comply with the general requirements of
A484/A484MSpecification for General Requirements for
Specification A484/A484M constitutes nonconformance with
Stainless Steel Bars, Billets, and Forgings
this specification.
A700Guide for Packaging, Marking, and Loading Methods
5.2 In case of conflict between the requirements of this
for Steel Products for Shipment
specificationandSpecificationA484/A484M,thisspecification
A941TerminologyRelatingtoSteel,StainlessSteel,Related
shall prevail.
Alloys, and Ferroalloys
E112Test Methods for Determining Average Grain Size
6. Manufacture
E292Test Methods for Conducting Time-for-Rupture Notch
6.1 Melting Process—The steel shall be made using the
Tension Tests of Materials
Basic Electric Furnace Process with Argon-Oxygen-
E381Method of Macroetch Testing Steel Bars, Billets,
Decarburization (AOD) refining or by Vacuum Ladle Degas-
Blooms, and Forgings
sing. Use of Electro-Slag Remelting is permitted unless other-
E562Test Method for Determining Volume Fraction by
wise specified by the purchaser (see Supplemental
Systematic Manual Point Count
Requirement S1).
3. Terminology
6.2 Heat Treatment—Heat treating of all bars is required in
3.1 RefertoTerminologyA941fordefinitionsoftermsused accordance with Table 1 to develop the required mechanical
in this standard.
properties.
6.2.1 Number of Heat Treatments—Two complete heat
4. Ordering Information
treatments,consistingofanaustenitize,quenchandtemper,are
4.1 It is the responsibility of the purchaser to specify all permitted. Purchaser approval is required prior to any addi-
requirements that are necessary for product under this specifi- tional heat treatments.
cation.Suchrequirementstobeconsideredmayincludebutare 6.2.2 Temperature Variation—Heat treating temperatures
not limited to the following: shall be controlled in the range of 625°F.
6.3 Stress Relief—When heat treatment for mechanical
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This specification is under the jurisdiction ofASTM Committee A01 on Steel, properties is followed by straightening, a stress relieving heat
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
treatment is required in accordance with Table 1.
A01.17 on Flat-Rolled and Wrought Stainless Steel.
6.3.1 QuenchingafterStressRelief—Wateroroilquenching
Current edition approved March 1, 2015. Published March 2015. Originally
of stress-relieved bars is prohibited.
approved in 2003. Last previous edition approved in 2009 as A1028–03(2009).
DOI: 10.1520/A1028-03R15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 7. Chemical Composition
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
7.1 Thesteelshallconformtotherequirementsforchemical
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. composition prescribed in Table 2.
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A1028−03 (2015)
TABLE 1 Heat Treatment, °F
Grade A Grade B Grade C Grade D Grade E Grade F
Classes 1 and 2 Class 1 Class 1 Class 2 Classes 1 and 2 Class 1 Class 2 Class 1
Austenitizing 1725-1775 1600-1750 1825 to 1875 1725 to 1875 1875 to 1925 2075 to 2125 1725 to 1775 1875 to 1925
Quenching Air or liquid Air or liquid Air or liquid Air or liquid Air or liquid Air or liquid Air or liquid Air or liquid
First temper 1100 min 1100 min 1050 min 1000 min 1150 min 1250 min 1100 min . . .
Second temper . . . . . . 1025
...