ASTM B639-02(2008)
(Specification)Standard Specification for Precipitation Hardening Cobalt-Containing Alloys (UNS R30155 and UNS R30816) Rod, Bar, Forgings, and Forging Stock for High-Temperature Service
Standard Specification for Precipitation Hardening Cobalt-Containing Alloys (UNS R30155 and UNS R30816) Rod, Bar, Forgings, and Forging Stock for High-Temperature Service
ABSTRACT
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. The material shall conform to the required chemical composition for carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, molybdenum, columbium, tantalum, iron, cobalt, and nitrogen. The materials shall conform to the required tensile and hardness properties such namely tensile strength, yield strength, alongation and Brinell hardness. The alloys shall also conform to the required stress-rupture properties. Dimensions such as diameter, thickness, or width, out-of-round, corners, cut lengths, straightness for cold-worked and hot-worked rod and bar shall be measured.
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 (MSDS) 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.
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Designation:B639 −02(Reapproved2008)
Standard Specification for
Precipitation Hardening Cobalt-Containing Alloys (UNS
R30155 and UNSR30816) Rod, Bar, Forgings, and Forging
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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This specification covers hot- and cold-worked precipi- 3.1 Definitions of Terms Specific to This Standard:
tation hardenable cobalt-containing alloys (UNS R30155 and
3.1.1 bar, n—material of rectangular (flats), hexagonal,
UNS R30816) rod, bar, forgings, and forging stock for high-
octagonal, or square solid section in straight lengths.
temperature service.
3.1.2 rod, n—material of round solid section furnished in
1.2 The values stated in inch-pound units are to be regarded
straight lengths.
as the standard. The values given in parentheses are for
information only.
4. Ordering Information
1.3 This standard does not purport to address all of the
4.1 It is the responsibility of the purchaser to specify all
safety concerns, if any, associated with its use. It is the
requirements that are necessary for material ordered under this
responsibility of the user of this standard to become familiar
specification. Examples of such requirements include, but are
with all hazards including those identified in the appropriate
not limited to, the following:
Material Safety Data Sheet (MSDS) for this product/material
4.1.1 Alloy Name or UNS Number (see Table 1).
as provided by the manufacturer, to establish appropriate
4.1.2 ASTM Designation, including year of issue.
safety and health practices, and determine the applicability of
4.1.3 Condition (temper) (Table 4).
regulatory limitations prior to use.
4.1.4 Section—Rod or bar (round, rectangle, square,
hexagon, octagon).
2. Referenced Documents
4.1.4.1 Forging (sketch or drawing).
2.1 ASTM Standards:
4.1.5 Dimensions, including length.
B880Specification for General Requirements for Chemical
4.1.6 Quantity (mass or number of pieces).
Check Analysis Limits for Nickel, Nickel Alloys and
Cobalt Alloys 4.1.7 Forging stock—Specify if material is stock for reforg-
E8Test Methods for Tension Testing of Metallic Materials ing.
E29Practice for Using Significant Digits in Test Data to
4.1.8 Finish.
Determine Conformance with Specifications
4.1.9 Certification—State if certification or a report of test
E139Test Methods for Conducting Creep, Creep-Rupture,
results is required (Section 15).
and Stress-Rupture Tests of Metallic Materials
4.1.10 Samples for Product (Check) Analysis—Whether
E1473Test Methods for Chemical Analysis of Nickel,
samplesforproduct(check)analysisshouldbefurnished(9.2).
Cobalt, and High-Temperature Alloys
4.1.11 Purchaser Inspection—If the purchaser wishes to
witness the tests or inspection of material at the place of
manufacture,thepurchaseordermustsostateindicatingwhich
This specification is under the jurisdiction of ASTM Committee B02 on
tests or inspections are to be witnessed (Section 13).
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys.
*New designation established in accordance with Practices E527 and SAE
5. Chemical Composition
J1086. Practice for Numbering Metals and Alloys (UNS).
Current edition approved March 1, 2008. Published March 2008. Originally
5.1 The material shall conform to the chemical composition
approved in 1970. Last previous edition approved in 2002 as B639–02. DOI:
limits specified in Table 1.
10.1520/B0639-02R08.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.2 If a product (check) analysis is performed by the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
purchaser, the material shall conform to the product (check)
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. analysis variations per Specification B880.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B639−02(2008)
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 4 D, of Area, Hardness,
min, psi (MPa) offset), min, psi (MPa)
min, % min, % min
R30155 solution + precipitation harden 110 000 (760) 50 000 (345) 30 30 192
R30816 solution + precipitation harden 130 000 (895) 60 000 (415) 20 20 248
A
The supplier shall demonstrate that the material will meet fully heat-treated properties after full heat treatment in accordance with Table 4.
A
TABLE 3 Stress-Rupture Requirements
Test Temperature, °F Elongation in 2 in. or 50.8
B
Alloy Heat Treatment Stress, psi (MPa) Minimum, h
(°C) mm, or 4D,min,%
R30155 solution + precipitation harden 1350 (732) 24 000 (165) 100 10
R30816 solution + precipitation harden 1350 (732) 38 000 (260) 100 8
A
The supplier shall demonstrate that material will meet fully heat-treated properties after full heat treatment in accordance with Table 4.
B
Test specimens meeting minimum requirements may be overloaded to produce rupture in a reasonable and practical time period.
A
TABLE 4 Heat Treatment TABLE 5 Permissible Variations in Diameter or Distance Between
Parallel Surfaces of Cold-Worked Rod and Bar
Recommended Solution
Alloy Precipitation Hardening Treatment
Treatment
Permissible Variations from
R30155 2125 to 2175°F (1162 to 1475 to 1525°F (801 to 829°C)
A
Specified Dimension, in. (mm)
Specified Dimension, in. (mm)
1190°C) hold 30 min, hold 4 h, air cool or furnace
+−
minimum, water quench cool
Rods:
R30816 2130 to 2170°F (1165 to 1390 to 1410°F (754 to 765°C)
1 3
1187°C), hold 1 h, water hold 12 h, air cool or furnace ⁄16 to ⁄16 (1.59 to 4.76), excl 0 0.002 (0.051)
3 1
quench cool
⁄16 to ⁄2 (4.76 to 12.70), excl 0 0.003 (0.076)
1 15
⁄2 to ⁄16 (12.70 to 23.81), incl 0.001 (0.025) 0.002 (0.051)
A
The purchaser shall designate on the purchase order or inquiry any partial stage
15 15
Over ⁄16 to 1 ⁄16 (23.81 to 49.2), 0.0015 (0.038) 0.003 (0.076)
of heat treatment required on the material to be shipped.
incl
15 1
Over 1 ⁄16 to 2 ⁄2 (49.2 to 63.5), incl 0.002 (0.051) 0.004 (0.102)
Bars:
1 3
⁄16 to ⁄16 (1.59 to 4.76), excl 0 0.002 (0.051)
3 1
⁄16 to ⁄2 (4.76 to 12.7), excl 0 0.003 (0.076)
A
Dimensions apply to the diameter of rods, to the distance between parallel
6. Mechanical Requirements
surfaces of hexagonal, octagonal, and square bar, and separately to the width and
thickness of rectangular bar.
6.1 Tensile and Hardness Requirements—The material shall
conformtotherequirementsfortensileandhardnessproperties
in Table 2.
6.2 Stress-Rupture Requirements—The material shall con-
form to the requirements for stress-rupture properties in Table
7.1.1 Out-of-Round—Cold-worked and hot-worked rod, all
3.
sizes, in straight lengths, shall not be out-of-round by more
thanonehalfthetotalpermissiblevariationsindiametershown
7. Dimensions and Permissible Variations
in Table 5 and Table 6, except for hot-worked rod ⁄2 in. (12.7
7.1 Diameter, Thickness, or Width—The permissible varia- mm) and under, which may be out-of-round by the total
tionsfromthespecifieddimensionsofcold-workedrodandbar permissible variations in diameter shown
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:B639–97 Designation: B 639 – 02 (Reapproved 2008)
Standard Specification for
Precipitation Hardening Cobalt-Containing Alloys (UNS
R30155 and UNS R30816) Rod, Bar, Forgings, and Forging
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
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 Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformation
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 (MSDS) 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.
2. Referenced Documents
2.1 ASTM Standards:
B880 SpecificationforGeneralRequirementsforChemicalCheckAnalysisLimitsforNickel,NickelAlloysandCobaltAlloys
E8 Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications E38Methods for
Chemical Analysis
of Nickel-
Chromium and
Nickel-Chromium-
Iron Alloys
E139Practice Test Methods for Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials
E1473 Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 barbar, n—material of rectangular (flats), hexagonal, octagonal, or square solid section in straight lengths.
3.1.2 rodrod, n—material of round solid section furnished in straight lengths.
4. Ordering Information
4.1 It is the responsibility of the purchaser to specify all requirements that are necessary for the safe and satisfactory
performance of material ordered under this specification. Examples of such requirements include, but are not limited to, the
following:
4.1.1 Alloy Name or UNS Number (see Table 1).
4.1.2 ASTM Designation, including year of issue. Table 2Table 3, including year of issue.
4.1.3 Condition (temper) (Table 4).
This specification is under the jurisdiction ofASTM Committee B-2B02 on Nonferrous Metals andAlloys and is the direct responsibility of Subcommittee B02.07 on
Refined Nickel and Cobalt and Their Alloys.
*New designation established in accordance with Practices E527 and SAE J1086. Practice for Numbering Metals and Alloys (UNS).
Current edition approved Apr. 10, 1997. Published February 1998. Originally published as A639–70. Redesignated B639 in 1980. Last previous edition B639–92.
Current edition approved March 1, 2008. Published March 2008. Originally approved in 1970. Last previous edition approved in 2002 as B639–02.
Annual Book of ASTM Standards, Vol 03.01.
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B 639 – 02 (2008)
TABLE 1 Chemical Requirements
Product (Check) Analysis
C
Variations, under min or
Element Composition Limits, % A
over max, of the Specified
m
Limit of Element
UNS R30155 (Formerly UNS R30816 (Formerly
Grade 661) Grade 671)
Carbon 0.08 to 0.16 0.01 0
Manganese 1.00 to 2.00 0.03 under min—0.04 over 1
max m
Manganese 1.00 to 2.00 0.03 under min—0.04 over 1
max
Silicon 1.00 max 0.05 1
Silicon 1.00 max 0.05 1
Phosphorus 0.040 max 0.005 0
Phosphorus 0.040 max 0.005 0
Sulfur 0.030 max 0.005 0
Sulfur 0.030 max 0.005 0
Chromium 20.00 to 22.50 0.25 1
Chromium 20.00 to 22.50 0.25 1
Nickel 19.00 to 21.00 0.20 under min—0.25 over 1
max o
Nickel 19.00 to 21.00 0.20 under min—0.25 over 1
max
Molybdenum 2.50 to 3.50 0.05 under min—0.10 over 3
max
Tungsten 2.00 to 3.00 0.10 3
Tungsten 2.00 to 3.00 0.10 3
Columbium + tantalum 0.75 to 1.25 0.05 3
Columbium + tantalum 0.75 to 1.25 0.05 3
A
Iron remainder 5.00 max0.07
A
Iron remainder 5.00 max
Cobalt 18.50 to 21.00 0.20 under min—0.25 over 4
max
Cobalt 18.50 to 21.00 0.20 under min—0.25 over 4
max
Nitrogen 0.20 max 0.01 .
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 Area, Hardness,
min, psi (MPa) offset), min, psi (MPa)
min, % min, % min
R30155 solution + precipitation harden 110 000 (760) 50 000 (345) 30 30 192
R30816 solution + precipitation harden 130 000 (895) 60 000 (415) 20 20 248
A
The supplier shall demonstrate that the material will meet fully heat-treated properties after full heat treatment in accordance with Table 4.
A
TABLE 3 Stress-Rupture Requirements
Test Temperature, °F Elongation in 2 in. or 50.8
B
Alloy Heat Treatment Stress, psi (MPa) Minimum, h
(°C) mm, or 4D,min,%
R30155 solution + precipitation harden 1350 (732) 24 000 (165) 100 10
R30816 solution + precipitation harden 1350 (732) 38 000 (260) 100 8
A
The supplier shall demonstrate that material will meet fully heat-treated properties after full heat treatment in accordance with Table 4.
B
Test specimens meeting minimum requirements may be overloaded to produce rupture in a reasonable and practical time period.
A
TABLE 4 Heat Treatment
Recommended Solution
Alloy Precipitation Hardening Treatment
Treatment
R30155 2125 to 2175°F (1162 to 1475 to 1525°F (801 to 829°C)
1190°C) hold 30 min, hold 4 h, air cool or furnace
minimum, water quench cool
R30816 2130 to 2170°F (1165 to 1390 to 1410°F (754 to 765°C)
1187°C), hold 1 h, water hold 12 h, air cool or furnace
quench cool
A
The purchaser shall designate on the purchase order or inquiry any partial
stage of heat treatment required on the material to be shipped.
4.1.4 Section—Rod or bar (round, rectangle, square, hexagon, octagon).
4.1.4.1 Forging (sketch or drawing).
4.1.5 Dimensions, including length.
B 639 – 02 (2008)
4.1.6 Quantity (mass or number of pieces).
4.1.7 Forging stock— Specify if material is stock for reforging.
4.1.8 Finish.
4.1.9 Certification— State if certification or a report of test results is required (Section 15).
4.1.10 Samples for Product (Check) Analysis—Whether samples for product (check) analysis should be furnished (9.2).
4.1.11 Purchaser Inspection—If the purchaser wishes to witness the tests or inspection of material at the place of manufacture,
the purchase order must so state indicating which tests or inspections are to be witnessed (Section 13).
5. Chemical Composition
5.1 The material shall conform to the chemical composition limits specified in Table 1.
5.2 If a product (check) analysis is performed by the purchaser, the material shall conform to the product (check) analysis
variations in Table 1per Specification B880.
6.Mechanical Requirements Mechanical Requirements
6. Mechanical Requirements
6.1 Tensile and Hardness Requirements —The material shall conform to the requirements for tensile and hardness properties
in Table 2.
6.2 Stress-Rupture Requirements —The material shall conform to the requirements for stress-rupture properties in Table 3.
7. Dimensions and Permissible Variations
7.1 Diameter, Thickness, or Width—Thepermissiblevariationsfromthespecifieddimensionsofcold-workedrodandbarshall
be as prescribed in Table 5, and of hot-worked rod and bar as prescribed in Table 6.
7.1.1 Out-of-Round— Cold-worked and hot-worked rod, all sizes, in straight lengths, shall not be out-of-round by more than
onehalfthetotalpermissiblevariationsindiametershowninTable5andTable6,exceptforhot-workedrod ⁄2in.(12.7mm)and
under, which may be out-of-round by the total permissible variations in diameter shown in Tab
...
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