ASTM B446-03(2008)
(Specification)Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloy (UNS N06625), Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219), and Nickel-Chromium-Molybdenum-Tungsten Alloy (UNS N06650)* Rod and Bar
Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloy (UNS N06625), Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219), and Nickel-Chromium-Molybdenum-Tungsten Alloy (UNS N06650)* Rod and Bar
ABSTRACT
This specification covers nickel-chromium-molybdenum-columbium (UNS N06625), nickel-chromium-molybdenum-silicon alloy (UNS N06219), and nickel-chromium-molybdenum-tungsten alloy (UNS N06650) in the form of hot-worked rod and bar and cold-worked rod. The matreial shall conform to the required chemical composition for carbon, manganese, silicon, phosphorus, sulfur, chromium, columbium, tantalum, cobalt, molybdenum, iorn, aluminum, titanium, copper, nickel, tungsten, and nitrogen. The materials shall conform to the the heat treatment and room temperature tensile properties such as tensile strength, yield strength, and elongation. Dimensions of the alloys such as diameter, thickness, or width, length and straightness shall also be determined.
SCOPE
1.1 This specification covers nickel-chromium-molybdenum-columbium (UNS N06625), nickel-chromium-molybdenum-silicon alloy (UNS N06219), and Nickel-Chromium-Molybdenum-Tungsten Alloy (UNS N06650)* in the form of hot-worked rod and bar and cold-worked rod in the conditions shown in Table 1.
1.1.1 UNS N06625 products are furnished in two grades of different heat-treated conditions:
1.1.1.1 Grade 1 (Annealed)—Material is normally employed in service temperatures up to 1100°F (593°C).
1.1.1.2 Grade 2 (Solution Annealed)—Material is normally employed in service temperatures above 1100°F (593°C) when resistance to creep and rupture is required.
Note 1—Hot-working or reannealing may change properties significantly, depending on working history and temperatures.
1.1.2 Alloys UNS N06219 and UNS N06650 are supplied in solution annealed condition only.
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 The following precautionary caveat pertains only to the test methods portion, Section 12, of this specification: 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: B446 – 03 (Reapproved 2008)
Standard Specification for
Nickel-Chromium-Molybdenum-Columbium Alloy (UNS
N06625), Nickel-Chromium-Molybdenum-Silicon Alloy (UNS
N06219), and Nickel-Chromium-Molybdenum-Tungsten Alloy
1
(UNS N06650)* Rod and Bar
This standard is issued under the fixed designation B446; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 2. Referenced Documents
2
1.1 This specification covers nickel-chromium- 2.1 ASTM Standards:
molybdenum-columbium (UNS N06625), nickel-chromium- B443 Specification for Nickel-Chromium-Molybdenum-
molybdenum-silicon alloy (UNS N06219), and Nickel- Columbium Alloy(UNS N06625) and Nickel-Chromium-
Chromium-Molybdenum-Tungsten Alloy (UNS N06650)* in Molybdenum-SiliconAlloy (UNS N06219)* Plate, Sheet,
the form of hot-worked rod and bar and cold-worked rod in the and Strip
conditions shown in Table 1. B880 Specification for General Requirements for Chemical
1.1.1 UNS N06625 products are furnished in two grades of Check Analysis Limits for Nickel, Nickel Alloys and
different heat-treated conditions: Cobalt Alloys
1.1.1.1 Grade 1 (Annealed)—Material is normally em- E8 Test Methods for Tension Testing of Metallic Materials
ployed in service temperatures up to 1100°F (593°C). E29 Practice for Using Significant Digits in Test Data to
1.1.1.2 Grade 2 (Solution Annealed)—Material is normally Determine Conformance with Specifications
employed in service temperatures above 1100°F (593°C) when E1473 Test Methods for Chemical Analysis of Nickel,
resistance to creep and rupture is required. Cobalt, and High-Temperature Alloys
NOTE 1—Hot-working or reannealing may change properties signifi-
3. Terminology
cantly, depending on working history and temperatures.
3.1 Definitions of Terms Specific to This Standard:
1.1.2 AlloysUNSN06219andUNSN06650aresuppliedin
3.1.1 bar, n—material of rectangular (flats) or square solid
solution annealed condition only.
1
section up to and including 10 in. (254 mm) in width and ⁄8 in.
1.2 The values stated in inch-pound units are to be regarded
(3.2 mm) and over in thickness in straight lengths.
as the standard. The values given in parentheses are for
3.1.1.1 Discussion—Hot-worked rectangular bar in widths
information only.
10 in. (254 mm) and under may be furnished as hot-rolled plate
1.3 The following precautionary caveat pertains only to the
with sheared or cut edges in accordance with Specification
test methods portion, Section 12, of this specification: This
B443, provided the mechanical property requirements of this
standard does not purport to address all of the safety concerns,
specification are met.
if any, associated with its use. It is the responsibility of the user
3.1.2 rod, n—material of round solid section furnished in
of this standard to become familiar with all hazards including
straight lengths.
those identified in the appropriate Material Safety Data Sheet
(MSDS) for this product/material as provided by the manufac- 4. Ordering Information
turer, to establish appropriate safety and health practices, and
4.1 It is the responsibility of the purchaser to specify all
determine the applicability of regulatory limitations prior to
requirements that are necessary for the safe and satisfactory
use.
performance of material ordered under this specification.
Examples of such requirements include, but are not limited to,
1
This specification is under the jurisdiction of ASTM Committee B02 on the following:
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved March 1, 2008. Published March 2008. Originally
2
approved in 1966. Last previous edition approved in 2003 as B446 - 03. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/B0446-03R08. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
* New designation established in accordance with Practice E527 and SAE Standards volume information, refer to the standard’s Document Summary page on
J 1086, Practice for Numbering Metals and Alloys (UNS). the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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B446 – 03 (2008)
TABLE 1 Conditions for Hot-Worked Rod and Bar and Cold- TABLE 2 Chemical Requirements
A
Worked Rod
Composition
Limits, %
Tensile Yield Elongation
Element
Diameter or Distance
Strength Strength in 2 in
...
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:B446–02 Designation: B 446 – 03 (Reapproved 2008)
Standard Specification for
Nickel-Chromium-Molybdenum-Columbium Alloy (UNS
N06625), Nickel-Chromium-Molybdenum-Silicon Alloy (UNS
N06219), and Nickel-Chromium-Molybdenum-Tungsten Alloy
1
(UNS N06650)* Rod and Bar
This standard is issued under the fixed designation B 446; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This specification covers nickel-chromium-molybdenum-columbium (UNS N06625), nickel-chromium-molybdenum-
silicon alloy (UNS N06219), and Nickel-Chromium-Molybdenum-TungstenAlloy (UNS N06650)* in the form of hot-worked rod
and bar and cold-worked rod in the conditions shown in Table 1.
1.1.1 UNS N06625 products are furnished in two grades of different heat-treated conditions:
1.1.1.1 Grade 1 (Annealed)—Material is normally employed in service temperatures up to 1100°F (593°C).
1.1.1.2 Grade 2 (Solution Annealed)—Material is normally employed in service temperatures above 1100°F (593°C) when
resistance to creep and rupture is required.
NOTE 1—Hot-working or reannealing may change properties significantly, depending on working history and temperatures.
1.1.2 Alloys UNS N06219 and UNS N06650 are supplied in solution annealed condition only.
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 The following precautionary caveat pertains only to the test methods portion, Section 12, of this specification: 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
2.1 ASTM Standards:
B 443 Specification for Nickel-Chromium-Molybdenum-Columbium Alloy (UNSN06625) and Nickel-Chromium-
Molybdenum-Silicon Alloy (UNS N06219) Plate, Sheet, and Strip
B 880 SpecificationforGeneralRequirementsforChemicalCheckAnalysisLimitsforNickel,NickelAlloysandCobaltAlloys
E 8 Test Methods for Tension Testing of Metallic Materials
E 29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E 1473 Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
1
3.1.1 barbar, n—material of rectangular (flats) or square solid section up to and including 10 in. (254 mm) in width and ⁄8 in.
(3.2 mm) and over in thickness in straight lengths.
3.1.1.1 Discussion—Hot-worked rectangular bar in widths 10 in. (254 mm) and under may be furnished as hot-rolled plate with
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB02onNonferrousMetalsandAlloysandisthedirectresponsibilityofSubcommitteeB02.07onRefined
Nickel and Cobalt and Their Alloys.
{1
Current edition approved May 10, 2002. Published July 2002. Originally published as B446–66. Last previous edition B446–00 .
Current edition approved March 1, 2008. Published March 2008. Originally approved in 1966. Last previous edition approved in 2003 as B 446 - 03.
* New designation established in accordance with Practice E 527 and SAE J 1086, Practice for Numbering Metals and Alloys (UNS).
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 02.04.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.
1
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B 446 – 03 (2008)
TABLE 1 Conditions for Hot-Worked Rod and Bar and Cold-
A
Worked Rod
Tensile Yield Elongation
Diameter or Distance
Strength Strength in 2 in. or
Between Parallel
min, ksi (0.2 % offset), 50 mm or
Surfaces, in. (mm)
(MPa) min, ksi (MPa) 4D,min,%
B
UNS N06625 Grade 1 (Annealed)
Up to 4 (102), incl 120 60 30
Over
...
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