ASTM B444-06(2011)
(Specification)Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube
Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube
ABSTRACT
This specification covers UNS N06625 and UNS N06852 nickel-chromium-molybdenum-columbium alloys and UNS N06219 nickel-chromium-molybdenum-silicon alloy in the form of cold-worked seamless pipe and tube. UNS N06625 products are furnished in annealed Grade 1 and solution annealed Grade 2 while UNS N06219 and UNS N06852 are in solution annealed condition only. Chemical testing shall be performed on each type of material and shall conform to the chemical composition limits specified for carbon, manganese, silicon, phosphorus, sulfur, chromium, tantalum, columbium, cobalt, molybdenum, iron, aluminum, titanium, copper, and nickel. The material shall undergo tensile testing and shall conform to the required room temperature tensile properties like tensile strength, yield strength, and elongation depending on the heat treatment used and including small diameter and light-walled tubing. Each pipe or tube shall undergo hydrostatic testing and shall conform to the allowable fiber stress and also be examined with a nondestructive electric test as prescribed.
SCOPE
1.1 This specification covers nickel-chromium-molybdenum-columbium alloys (UNS N06625 and UNS N06852) and nickel-chromium-molybdenum-silicon alloy (UNS N06219)* in the form of cold-worked seamless pipe and tube. The general requirements for pipe and tube are covered by Specification B829.
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 N06852 are supplied in the solution annealed condition only.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 The following precautionary caveat pertains only to the test methods portion, Section 9, 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.
General Information
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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:B444 −06(Reapproved 2011)
Standard Specification for
Nickel-Chromium-Molybdenum-Columbium Alloys
(UNS N06625 and UNS N06852) and Nickel-Chromium-
Molybdenum-Silicon Alloy (UNS N06219) Pipe and Tube
This standard is issued under the fixed designation B444; 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 U.S. Department of Defense.
1. Scope* manufacturer, to establish appropriate safety and health
2 practices, and determine the applicability of regulatory limi-
1.1 This specification covers nickel-chromium-
tations prior to use.
molybdenum-columbium alloys (UNS N06625 and UNS
N06852) and nickel-chromium-molybdenum-silicon alloy
2. Referenced Documents
(UNS N06219)* in the form of cold-worked seamless pipe and
2.1 ASTM Standards:
tube. The general requirements for pipe and tube are covered
B829 Specification for General Requirements for Nickel and
by Specification B829.
Nickel Alloys Seamless Pipe and Tube
1.1.1 UNS N06625 products are furnished in two grades of
different heat-treated conditions:
3. General Requirement
1.1.1.1 Grade 1 (annealed)—Materialisnormallyemployed
3.1 Material furnished under this specification shall con-
in service temperatures up to 1100°F (593°C).
form to the applicable requirements of Specification B829
1.1.1.2 Grade 2 (solution annealed)—Material is normally
unless otherwise provided herein.
employed in service temperatures above 1100°F (593°C) when
resistance to creep and rupture is required.
4. Ordering Information
NOTE 1—Hot-working or reannealing may change properties
4.1 Orders for material to this specification shall include
significantly, depending on working history and temperatures.
information with respect to the following:
1.1.2 AlloysUNSN06219andUNSN06852aresuppliedin
4.1.1 Alloy name or UNS number,
the solution annealed condition only.
4.1.2 ASTM designation,
1.2 The values stated in inch-pound units are to be regarded
4.1.3 Condition (temper) (see 1.1.1, 1.1.2, Section 6, and
as standard. The values given in parentheses are mathematical
Appendix X1 and Appendix X2),
conversions to SI units that are provided for information only
4.1.3.1 If neither grade of N06625 is specified, Grade 1 will
and are not considered standard.
be supplied.
4.1.4 Finish (See Appendix X2),
1.3 The following precautionary caveat pertains only to the
4.1.5 Dimensions:
test methods portion, Section 9, of this specification: This
4.1.5.1 Tube—Specify outside diameter and nominal or
standard does not purport to address all of the safety concerns,
minimum wall,
if any, associated with its use. It is the responsibility of the user
4.1.5.2 Pipe—Specify standard pipe size and schedule,
of this standard to become familiar with all hazards including
4.1.5.3 Length—Cut to length or random,
those identified in the appropriate Material Safety Data Sheet
4.1.6 Quantity—Feet (or metres) or number of pieces,
(MSDS) for this product/material as provided by the
4.1.7 Hydrostatic Test or Nondestructive Electric Test—
Specify type of test (see 6.2),
This specification is under the jurisdiction of ASTM Committee B02 on
4.1.8 Hydrostatic Pressure Requirements—Specify test
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
pressure if other than required by 9.1.1,
B02.07 on Refined Nickel and Cobalt and Their Alloys.
4.1.9 Certification—State if certification is required,
Current edition approved May 1, 2011. Published May 2011. Originally
approved in 1966. Last previous edition approved in 2006 as B444 – 06. DOI:
10.1520/B0444-06R11.
* New designation established in accordance with Practice E527 and SAE For referenced ASTM standards, visit the ASTM website, www.astm.org, or
J 1086, Practice for Numbering Metals and Alloys (UNS). contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SB-444 in Section II of that Code. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B444−06 (2011)
TABLE 2 Chemical Requirements
4.1.10 Samples for Product (Check) Analysis—State
whether samples for product (check) analysis should be fur- Composition Limits, %
Element
nished (see 5.2), N06852 N06625 N06219
4.1.11 Purchaser Inspection—If purchaser wishes to wit- Carbon 0.05 max 0.10 max 0.05 max
Manganese 0.50 max 0.50 max 0.50 max
ness tests or inspection of material at place of manufacture, the
Silicon 0.50 max 0.50 max 0.70-1.10
purchase order must so state indicating which tests or inspec-
Phosphorus 0.015 max 0.015 max 0.020 max
tions are to be witnessed, and Sulfur 0.015 max 0.015 max 0.010 max
Chromium 20.0-23.0 20.0 min 18.0-22.0
4.1.12 Small-Diameter and Light-Wall Tube (Converter
... 23.0 max ...
Sizes)—See Appendix X1 and Table 1.
Columbium + tantalum . 3.15 min .
... 4.15 max ...
5. Chemical Composition
Columbium 0.51-1.00 . .
Cobalt (if determined) . 1.0 max 1.0 max
5.1 The material shall conform to the composition limits
Molybdenum 8.0-10.0 8.0 min 7.0-9.0
specified in Table 2. One test is required for each lot as defined
10.0 max .
Iron 15.0-20.0 5.0 max 2.0-4.0
in Specification B829.
Aluminum 0.40 max 0.40 max 0.50 max
5.2 If a product (check) analysis is performed by the Titanium 0.40 max 0.40 max 0.50 max
Copper . . 0.50 max
purchaser, the material shall conform to the product (check)
A
Nickel Bal. 58.0 min Bal.
analysis variations in Table 2 of Specification B829.
A
Element shall be determined arithmetically by difference.
6. Mechanical Properties and Other Requirements
6.1 Tension Test—The material shall conform to the tensile
properties specified in Table 1. The sampling and specimen
preparation are as covered in Specification B829.
8. Number of Tests
6.2 Hydrostatic or Nondestructive Electric Test—Each pipe
8.1 Chemical Analysis—One test per lot.
or tube shall be subjected to either the hydrostatic test or to the
nondestructive electric test. The type of test to be used shall be
8.2 Tension—One test per lot.
at the option of the manufacturer, unless otherwise specified in
8.3 Hydrostatic or Nondestructive Electric Test—Eachpiece
the purchase order.
in each lot.
7. Dimensions and Permissible Variations
9. Test Methods
7.1 Permissible variations for material specified as small-
diameter and light-wall tube (converter size) shall conform to 9.1 Hydrostatic Test—Each pipe or tube with an outside
the permissible variations prescribed in Table X1.1 and Table
diameter ⁄8 in. (3 mm) and larger and with wall thickness of
X1.2. 0.015in.(0.38mm)andovershallbetestedinaccordancewith
Specification B829. The allowable fiber stress for material in
TABLE 1 Room Temperature Tensile Properties and Heat
the condition furnished, is as follows:
Treatment Including Small Diameter and Light-Wall Tubing
AB
UNS N06625:
(Converter Sizes)
...
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