ASTM B639-02

Standard Specification for Precipitation Hardening Cobalt-Containing Alloys (UNS R30155 and UNS R30816) Rod, Bar, Forgings, and Forging Stock for High-Temperature Service

SCOPE
1.1 This specification covers hot- and cold-worked precipitation hardenable cobalt-containing alloys (UNS R30155 and UNS R30816) rod, bar, forgings, and forging stock for high-temperature service.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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 Material Safety Data Sheet for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Oct-2002
• ICS: 77.140.60 - Steel bars and rods
• ICS: 77.140.85 - Iron and steel forgings
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.07 - Refined Nickel and Cobalt and Their Alloys

Relations

• Replaces: ASTM B639-97 - Standard Specification for Precipitation Hardening Cobalt-Containing Alloys (UNSR30155 and UNS R30816) Rod, Bar, Forgings, and Forging Stock for High-Temperature Service
• Effective Date: 10-Oct-2002
• Replaced By: ASTM B639-02(2008) - Standard Specification for Precipitation Hardening Cobalt-Containing Alloys (UNS R30155 and UNS R30816) Rod, Bar, Forgings, and Forging Stock for High-Temperature Service
• Effective Date: 01-Mar-2008

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B 639 – 02
Standard Specification for
Precipitation Hardening Cobalt-Containing Alloys (UNS
R30155 and UNS R30816) Rod, Bar, Forgings, and Forging
1
Stock for High-Temperature Service
This standard is issued under the fixed designation B639; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope E1473 Test Methods for Chemical Analysis of Nickel,
5
Cobalt, and High-Temperature Alloys
1.1 This specification covers hot- and cold-worked precipi-
tation hardenable cobalt-containing alloys (UNS R30155 and
3. Terminology
UNS R30816) rod, bar, forgings, and forging stock for high-
3.1 Definitions of Terms Specific to This Standard:
temperature service.
3.1.1 bar—material of rectangular (flats), hexagonal, oc-
1.2 The values stated in inch-pound units are to be regarded
tagonal, or square solid section in straight lengths.
as the standard. The values given in parentheses are for
3.1.2 rod—material of round solid section furnished in
information only.
straight lengths.
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 become familiar
4.1 It is the responsibility of the purchaser to specify all
with all hazards including those identified in the appropriate
requirements that are necessary for material ordered under this
Material Safety Data Sheet for this product/material as pro-
specification. Examples of such requirements include, but are
vided by the manufacturer, to establish appropriate safety and
not limited to, the following:
health practices, and determine the applicability of regulatory
4.1.1 Alloy Name or UNS Number (see Table 1).
limitations prior to use.
4.1.2 ASTM Designation, including year of issue. Table
2Table 3
2. Referenced Documents
4.1.3 Condition (temper) (Table 4).
2.1 ASTM Standards:
4.1.4 Section—Rod or bar (round, rectangle, square, hexa-
B880 SpecificationforGeneralRequirementsforChemical
gon, octagon).
Check Analysis Limits for Nickel, Nickel Alloys and
2 4.1.4.1 Forging (sketch or drawing).
Cobalt Alloys
3 4.1.5 Dimensions, including length.
E8 TestMethodsforTensionTestingofMetallicMaterials
4.1.6 Quantity (mass or number of pieces).
E29 Practice for Using Significant Digits in Test Data to
4 4.1.7 Forging stock— Specify if material is stock for
Determine Conformance with Specifications
reforging.
E139 Test Methods for Conducting Creep, Creep-Rupture,
3 4.1.8 Finish.
and Stress-Rupture Tests of Metallic Materials
4.1.9 Certification— State if certification or a report of test
results is required (Section 15).
1
This specification is under the jurisdiction of ASTM Committee B02 on 4.1.10 Samples for Product (Check) Analysis—Whether
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
samplesforproduct(check)analysisshouldbefurnished(9.2).
B02.07 on Refined Nickel and Cobalt and Their Alloys.
4.1.11 Purchaser Inspection—If the purchaser wishes to
*New designation established in accordance with Practices E527 and SAE
witness the tests or inspection of material at the place of
J1086. Practice for Numbering Metals and Alloys (UNS).
Current edition approved Oct. 10, 2002. Published December 2002. Originally
manufacture,thepurchaseordermustsostateindicatingwhich
published as A639–70. Redesignated B639 in 1980. Last previous edition
tests or inspections are to be witnessed (Section 13).
B639–97
2
Annual Book of ASTM Standards, Vol 02.04.
3
Annual Book of ASTM Standards, Vol 03.01.
4 5
Annual Book of ASTM Standards, Vol 14.02. Annual Book of ASTM Standards, Vol 03.05.
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B639–02
TABLE 1 Chemical Requirements
Element Composition Limits, % Composition Limits, %
UNS R30155 (Formerly UNS R30816 (Formerly
Grade 661) Grade 671)
Carbon 0.08 to 0.16 0.32 to 0.42
Manganese 1.00 to 2.00 1.00 to 2.00
Silicon 1.00 max 1.00 max
Phosphorus 0.040 max 0.040 max
Sulfur 0.030 max 0.030 max
Chromium 20.00 to 22.50 19.00 to 21.00
Nickel 19.00 to 21.00 19.00 to 21.00
Molybdenum 2.50 to 3.50 3.50 to 4.50
Tungsten 2.00 to 3.00 3.50 to 4.50
Columbium + tantalum 0.75 to 1.25 3.50 to 4.50
A
Iron remainder 5.00 max
Cobalt 18.50 to 21.00 40.00 min
Nitrogen 0.20 max .
A
Element shall be determined arithmetically by difference.
A
TABLE 2 Tensile and Hardness Requirements
Elongation in 2 in. Reduction Brinell
Tensile Strength, Yield Strength (0.2 %
Alloy Heat Treatment or 50.8 mm or 4D, of
...