ASTM B366-04a
(Specification)Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings
Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings
SCOPE
1.1 This specification covers wrought welding fittings for pressure piping, factory-made from nickel and nickel alloys. Threaded fittings as covered in ASME B16.11 are also covered by this specification. The term welding applies to butt-welding or socket-welding parts such as 45 and 90 elbows, 180 bends, caps, tees, reducers, lap-joint stub ends, and other types, as covered by ASME B16.9, ASME B16.11, MSS SP-43, MSS SP-95, and MSS SP-97.
1.1.1 Several grades of nickel and nickel alloys are included in this specification. Grades are designated with a prefix, WP or CR, based on the applicable ASME or MSS dimensional and rating standards.
1.1.2 Class WP fittings are those manufactured to the requirements of ASME B16.9, B16.11.
1.1.3 For each of the WP nickel and nickel alloy grades, several classes of fittings are covered to indicate whether seamless or welded construction was utilized. Class designations are also utilized to indicate the nondestructive test method and extent of nondestructive examination (NDE). is general summary of the fitting classes applicable to all WP grades of nickel and nickel alloys covered by this specification. There are no classes for the CR grades. Specific requirements are covered elsewhere.
1.2 This specification does not apply to cast welding fittings.
1.3 Optional supplementary requirements are provided for fittings where a greater degree of examination is desired. These supplementary requirements call for additional tests. When desired, one or more of these may be specified in the order.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 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.
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Designation: B 366 – 04a
Standard Specification for
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Factory-Made Wrought Nickel and Nickel Alloy Fittings
This standard is issued under the fixed designation B 366; 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.
1. Scope* 1.4 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for
1.1 This specification covers wrought welding fittings for
information only.
pressure piping, factory-made from nickel and nickel alloys.
1.5 This standard does not purport to address all of the
Threaded fittings as covered in ASME B16.11 are also covered
safety concerns, if any, associated with its use. It is the
by this specification. The term welding applies to butt-welding
responsibility of the user of this standard to become familiar
or socket-welding parts such as 45 and 90° elbows, 180° bends,
with all hazards including those identified in the appropriate
caps, tees, reducers, lap-joint stub ends, and other types, as
Material Safety Data Sheet for this product/material as pro-
covered by ASME B16.9, ASME B16.11, MSS SP-43, MSS
vided by the manufacturer, to establish appropriate safety and
SP-95, and MSS SP-97.
health practices, and determine the applicability of regulatory
1.1.1 Several grades of nickel and nickel alloys are included
limitations prior to use.
in this specification. Grades are designated with a prefix, WP or
CR, based on the applicable ASME or MSS dimensional and
2. Referenced Documents
rating standards.
2
2.1 ASTM Standards:
1.1.2 Class WP fittings are those manufactured to the
B 127 Specification for Nickel-Copper Alloy (UNS
requirements of ASME B16.9, B16.11.
N04400) Plate, Sheet, and Strip
1.1.3 For each of the WP nickel and nickel alloy grades,
B 160 Specification for Nickel Rod and Bar
several classes of fittings are covered to indicate whether
B 161 Specification for Nickel Seamless Pipe and Tube
seamless or welded construction was utilized. Class designa-
B 162 Specification for Nickel Plate, Sheet, and Strip
tions are also utilized to indicate the nondestructive test method
B 163 Specification for Seamless Nickel and Nickel Alloy
and extent of nondestructive examination (NDE). Table 1 is
Condenser and Heat-Exchanger Tubes
general summary of the fitting classes applicable to all WP
B 164 Specification for Nickel-Copper Alloy Rod, Bar, and
grades of nickel and nickel alloys covered by this specification.
Wire
There are no classes for the CR grades. Specific requirements
B 165 Specification for Nickel-Copper Alloy (UNS
are covered elsewhere.
N04400) Seamless Pipe and Tube
B 166 Specification for Nickel-Chromium-Iron Alloys
TABLE 1 Fitting Classes for WP Grades
(UNS N06600, N06601, N06603, N06690, N06025, and
Class Construction Nondestructive Examination
N06045) and Nickel-Chromium-Cobalt-Molybdenum Al-
S Seamless None
loy (UNS N06617) Rod, Bar, and Wire
W Welded Radiography or Ultrasonic
B 167 Specification for Nickel-Chromium-Iron Alloys
WX Welded Radiography
WU Welded Ultrasonic
(UNS N06600, N06601, N06603, N06690, N06693,
N06025, and N06045) and Nickel-Chromium-Cobalt-
Molybdenum Alloy (UNS N06617) Seamless Pipe and
1.2 This specification does not apply to cast welding fit- Tube
B 168 Specification for Nickel-Chromium-Iron Alloys
tings.
1.3 Optional supplementary requirements are provided for (UNS N06600, N06601, N06603, N06690, N06693,
N06025, and N06045) and Nickel-Chromium-Cobalt-
fittings where a greater degree of examination is desired. These
supplementary requirements call for additional tests. When Molybdenum Alloy (UNS N06617) Plate, Sheet, and Strip
B 333 Specification for Nickel-Molybdenum Alloy Plate,
desired, one or more of these may be specified in the order.
Sheet, and Strip
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This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
B02.07 on Refined Nickel and Cobalt and Their Alloys.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Aug. 1, 2004. Published August 2004. Originally
Standards volume information, refer to the standard’s Document Summary page on
approved in 1961. Last previous edition approved in 2004 as B 366 – 04.
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.
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B 366 – 04a
B 335 Specification for Nickel-Molybde
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