ASTM B462-18e1

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Designation:B462 −18
Standard Specification for
Forged or Rolled Nickel Alloy Pipe Flanges, Forged Fittings,
and Valves and Parts for Corrosive High-Temperature
Service
This standard is issued under the fixed designation B462; 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.
ε NOTE—Editorial corrections were made to Table 1 in January 2021.
1. Scope* 2. Referenced Documents
2.1 ASTM Standards:
1.1 This specification covers forged or rolled UNS
A262 Practices for Detecting Susceptibility to Intergranular
N06030, UNS N06035, UNS N06022, UNS N06200, UNS
Attack in Austenitic Stainless Steels
N06059, UNS N10362, UNS N06686, UNS N08020, UNS
B166 Specification for Nickel-Chromium-Aluminum Alloy,
N08367, UNS N10276, UNS N10665, UNS N10675, UNS
Nickel-Chromium-IronAlloys,Nickel-Chromium-Cobalt-
N10629, UNS N08031, UNS N06045, UNS N06025, UNS
3 Molybdenum Alloy, Nickel-Iron-Chromium-Tungsten
N06699, and UNS R20033 pipe flanges, forged fittings, and
Alloy, and Nickel-Chromium-Molybdenum-CopperAlloy
valves and parts intended for corrosive high-temperature ser-
Rod, Bar, and Wire
vice.
B335 Specification for Nickel-Molybdenum Alloy Rod
1.2 The values stated in inch-pound units are to be regarded
B408 Specification for Nickel-Iron-Chromium Alloy Rod
as standard. The values given in parentheses are mathematical and Bar
conversions to SI units that are provided for information only B472 Specification for Nickel Alloy Billets and Bars for
Reforging
and are not considered standard.
B473 Specification for UNS N08020, UNS N08024, and
1.3 This standard does not purport to address all of the
UNS N08026 Nickel Alloy Bar and Wire
safety concerns, if any, associated with its use. It is the
B574 Specification for Low-Carbon Nickel-Chromium-
responsibility of the user of this standard to become familiar
Molybdenum, Low-Carbon Nickel-Molybdenum-
with all hazards including those identified in the appropriate
Chromium, Low-Carbon Nickel-Molybdenum-
Safety Data Sheet (SDS) for this product/material as provided
Chromium-Tantalum, Low-Carbon Nickel-Chromium-
by the manufacturer, to establish appropriate safety, health,
Molybdenum-Copper, and Low-Carbon Nickel-
and environmental practices, and determine the applicability
Chromium-Molybdenum-Tungsten Alloy Rod
of regulatory limitations prior to use.
B581 Specification for Nickel-Chromium-Iron-
1.4 This international standard was developed in accor-
Molybdenum-Copper Alloy Rod
dance with internationally recognized principles on standard-
B649 Specification for Ni-Fe-Cr-Mo-Cu-N Low-CarbonAl-
ization established in the Decision on Principles for the
loys (UNS N08925, UNS N08031, UNS N08034, UNS
Development of International Standards, Guides and Recom- N08354,andUNSN08926),andCr-Ni-Fe-NLow-Carbon
mendations issued by the World Trade Organization Technical Alloy (UNS R20033) Bar and Wire, and Ni-Cr-Fe-Mo-N
Alloy (UNS N08936) Wire
Barriers to Trade (TBT) Committee.
B691 Specification for Iron-Nickel-Chromium-
Molybdenum Alloys (UNS N08367) Rod, Bar, and Wire
B880 Specification for General Requirements for Chemical
This specification is under the jurisdiction of ASTM Committee B02 on
Check Analysis Limits for Nickel, Nickel Alloys and
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Cobalt Alloys
Current edition approved Nov. 1, 2018. Published November 2018. Originally
approved in 1967. Last previous edition approved in 2015 as B462 – 15. DOI:
10.1520/B0462-18E01.
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For ASME Boiler and Pressure Vessel Code applications see related Specifi- For referenced ASTM standards, visit the ASTM website, www.astm.org, or
cation SB-462 in Section II of that Code. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
New designation established in accordance with Practice E527 and SAE J1086, Standards volume information, refer to the standard’s Document Summary page on
Practice for Numbering Metals and Alloys (UNS). 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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B462−18
TABLE 1 Chemical Requirements
Element
UNS N08020 UNS N08367 UNS R20033
Carbon, max 0.07 0.030 0.015
Manganese, max 2.00 2.00 2.0
Phosphorus, max 0.045 0.040 0.02
Sulfur, max 0.035 0.030 0.01
Silicon, max 1.00 1.00 0.50
Nickel 32.00–38.00 23.50 to 25.50 30.0–33.0
Chromium 19.00–21.00 20.00 to 22.00 31.0–35.0
Molybdenum 2.00–3.00 6.00 to 7.00 0.50–2.0
Copper 3.00–4.00 0.75 max 0.30–1.20
Columbium (Nb) 8 × carbon–1.00 . .
+ tantalum
Nitrogen . 0.18 to 0.25 0.35–0.60
A A A
Iron Remainder Remainder Remainder
Composition, %
Element
UNS N06030 UNS N06022 UNS N06200 UNS N10276 UNS10665 UNS N10675
Carbon, max 0.03 0.015 0.010 0.010 0.02 0.01
Manganese, max 1.5 0.50 0.50 1.0 1.0 3.0
Phosphorous, max 0.04 0.02 0.025 0.04 0.04 0.030
Sulphur, max 0.02 0.02 0.010 0.03 0.03 0.010
Silicon. max 0.8 0.08 0.08 0.08 0.10 0.10
A A A A A A
Nickel Remainder Remainder Remainder Remainder Remainder Remainder
Chromium 28.0-31.5 20.0-22.5 22.0–24.0 14.5-16.5 1.0 max 1.0-3.0
Molybdenum 4.0-6.0 12.5-14.5 15.0-17.0 15.0-17.0 26.0-30.0 27.0-32.0
Copper 1.0-2.4 . 0.3-1.9 . . 0.20
Columbium (Nb) 0.30-1.50 . . . . .
+ tantalum
Nitrogen . . . . . .
Iron 13.0-17.0 2.0-6.0 3.0 max 4.0-7.0 2.0 max 1.0-3.0
Cobalt, max 5.0 2.5 2.0 2.5 1.0 3.0
Tungsten 1.5-4.0 2.5-3.5 . 3.0-4.5 . 3.0 max
Vanadium, max . 0.35 . 0.35 . 0.20
Titanium, max . . . . . 0.2
Zirconium, max . . . . . 0.10
Columbium (Nb) . . . . . 0.20 max
Tantalum . . . . . 0.20 max
Nickel . . . . . 94.0-98.0
+ Molybdenum
Aluminum, max . . 0.50 . . 0.50
Composition, %
Element
UNS UNS UNS UNS UNS UNS UNS† UNS† UNS†
N06699 N06059 N10362 N06686 N08031 N06045 N06025 N10629 N06035
Carbon, max 0.005-0.10 0.010 0.010 0.010 0.015 0.05-0.12 0.15-0.25 0.01 0.050
Manganese, max 0.50 0.5 0.60 0.75 2.0 1.0 0.15 1.5 0.50
Phosphorous, 0.02 0.015 0.025 0.04 0.020 0.02 0.02 0.040 0.030
max
Sulphur, max 0.01 0.010 0.010 0.02 0.010 0.010 0.010 0.010 0.015
Silicon, max 0.50 0.10 0.08 0.08 0.3 2.5-3.0 0.5 0.05 0.60
A A A A A A A
Nickel, Remainder Remainder Remainder Remainder 30.0-32.0 45.0 min Remainder Remainder Remainder
Chromium 26.0-30.0 22.0-24.0 13.8-15.6 19.0-23.0 26.0-28.0 26.0-29.0 24.0-26.0 0.5-1.5 32.25-34.25
Molybdenum . 15.0-16.5 21.5-23.0 15.0-17.0 6.0-7.0 . . 26.0-30.0 7.60-9.00
Copper 0.50 max 0.50 max . . 1.0-1.4 0.3 max 0.1 max 0.5 0.30 max
Yttrium . . . . . . 0.05-0.12 . .
Nitrogen 0.05 max . . . 0.15-0.25 . . . .
A
Iron 2.5 max 1.5 max 1.25 max 5.0 max Remainder 21.0-25.0 8.0–11.0 1.0-6.0 2.00 max
Cobalt, max . 0.3 . . . . . 2.5 1.00
Tungsten . . . 3.0-4.4 . . . . 0.60 max
Vanadium, max . . . . . . . . 0.20
Titanium, max 0.60 . . 0.02-0.25 . . 0.1-0.2 . .
Zirconium, max 0.10 . . . . . 0.01-0.10 . .
Columbium (Nb) 0.50 max . . . . . . . .
Tantalum . . . . . . . . .
Cerium . . . . . 0.03-0.09 . . .
Aluminum, max 1.9-3.0 0.1-0.4 0.50 . . . 1.8-2.4 0.1-1.5 0.40
Boron 0.008 max . . . . . . . .
A
Shall be determined arithmetically by difference.
† Editorially corrected.
E8/E8M Test Methods for Tension Testing of Metallic Ma- E527 Practice for Numbering Metals and Alloys in the
terials Unified Numbering System (UNS)
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B462−18
E1473 Test Methods for Chemical Analysis of Nickel, Co- 5.2.1 Material for forging shall consist of a billet, bar, or
balt and High-Temperature Alloys forging produced in accordance with Specifications B166,
E1916 Guide for Identification of Mixed Lots of Metals B335, B408, B462, B472, B473, B574, B581, B649,or B691.
5.2.2 The material shall be forged by hammering, pressing,
2.2 ANSI Standard:
rolling, extruding, or upsetting; it shall be brought as nearly as
B16.5 Steel Pipe Flanges and Flanged Fittings (for appli-
practicable to the finished shape and size by hot working; and
cable alloy UNS N08020)
shall be so processed as to cause metal flow during the
2.3 Manufacturers’Standardization Society of the Valve and
hot-working operation in the direction most favorable for
Fittings Industry Standard:
resisting the stresses encountered in service.
SP-25 Standard Marking System for Valves, Fittings,
5.2.3 When specified in the order, a sample forging may be
Flanges, and Unions
sectioned and etched to show flow lines and the condition as
regards internal imperfections. In such cases, the question of
3. Terminology
acceptable and unacceptable character of metal flow shall be a
3.1 Definitions of Terms Specific to This Standard:
subject for agreement between the manufacturer and the
3.1.1 forgings, n—the term forgings as used in this specifi-
purchaser.
cation shall be understood to cover one or all of the products
5.2.4 When specified in the order, the manufacturer shall
mentioned in 1.1, either forged or rolled.
submit for approval of the purchaser a sketch showing the
shape of the rough forging before machining.
4. Ordering Information
5.3 Heat Treatment:
4.1 It is the responsibility of the purchaser to specify all
5.3.1 The product of UNS N08020 alloy shall be furnished
requirements that are necessary for material ordered under this
in the stabilized-annealed condition. The product of UNS
specification. Examples of such requirements include, but are
N06022, UNS N06035, UNS N06030, UNS N06200, UNS
not limited to, the following:
N10362, UNS N10276, UNS N10665, UNS N10675, UNS
4.1.1 Quantity (weight or number of pieces),
N06699, and UNS R20033 alloys shall be furnished in the
4.1.2 Name of material or UNS number,
solution annealed condition.
4.1.3 Forging sketch when required (5.2.4),
NOTE 2—The recommended annealing temperatures all followed by
4.1.4 Forging sectioning, if required (5.2.3),
water quenching or rapidly cooling by other means are: UNS
4.1.5 ASTM designation and year of issue,
N06030–2125to2175°F(1163to1191°C),UNSN06022–2025to2075°F
4.1.6 Inspection (14.1),
(1107 to 1135°C), UNS N06035–2025–2075°F (1107–1135°C), UNS
4.1.7 Supplementary requirements, if any, and
N06200–2075to2125°F(1135to1163°C),UNSN06059–2025to2125°F
(1107 to 1163°C), UNS N10362–2075 to 2125°F (1135 to 1163°C), UNS
4.1.8 If possible, the intended end use.
N06686–2125to2225°F(1163to1218°C),UNSN08020–1700to1850°F
NOTE 1—A typical ordering description is as follows: 200 forgings,
(927 to 1010°C), UNS N10276–2025 to 2075°F (1107 to 1135°C), UNS
UNS N08020, in accordance with the attached drawing and Specification
N10665–1925to2000°F(1052to109
...