ASTM B637-12e1

Standard Specification for Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service

ABSTRACT
This specification covers hot- and cold-worked precipitation-hardenable nickel alloy rod, bar, forgings, and forging stock for high-temperature service. Chemical analysis shall be performed on the alloy and shall conform to the chemical composition requirement in carbon, manganese, silicon, phosphorus, sulfur, chromium, cobalt, molybdenum, columbium, tantalum, titanium, aluminum, zirconium, boron, iron, copper, and nickel. The material shall follow recommended annealing treatment, solution treatment, stabilizing treatment, and precipitation hardening treatment. Tension testing, hardness testing and stress-rupture testing shall be performed on the material and shall comply to the required tensile strength, yield strength, elongation, reduction in area, and Brinell hardness.
SCOPE
1.1 This specification2 covers hot- and cold-worked precipitation-hardenable nickel alloy rod, bar, forgings, and forging stock for moderate or high temperature service (Table 1).TABLE 1 Chemical Requirements    
Element  
Composition Limits, %  
UNS N07022  
UNS N07208  
UNS N07252
(Formerly
Grade 689)  
UNS N07001
(Formerly
Grade 685)  
UNS N07500
(Formerly
Grade 684)  
UNS N07750
(Formerly
Grade 688)  
UNS N07718
(Formerly
Grade 718)  
Carbon  
0.010 max  
0.04–0.08  
0.10–0.20  
0.03–0.10  
0.15 max  
0.08 max  
0.08 max  
Manganese  
0.5 max  
0.3 max  
0.50 max  
1.00 max  
0.75 max  
1.00 max  
0.35 max  
Silicon  
0.08 max  
0.15 max  
0.50 max  
0.75 max  
0.75 max  
0.50 max  
0.35 max  
Phosphorus  
0.025 max  
0.015 max  
0.015 max  
0.030 max  
0.015 max  
...  
0.015 max  
Sulfur  
0.015 max  
0.015 max  
0.015 max  
0.030 max  
0.015 max  
0.01 max  
0.015 max  
Chromium  
20.0–21.4  
18.5–20.5  
18.00–20.00  
18.00–21.00  
15.00–20.00  
14.00–17.00  
17.0–21.0  
Cobalt  
1.0 max  
9.0–11.0  
9.00–11.00  
12.00–15.00  
13.00–20.00  
1.00 maxA  
1.0 maxA  
Molybdenum  
15.5–17.4  
8.0–9.0  
9.00–10.50  
3.50–5.00  
3.00–5.00  
...  
2.80–3.30  
Columbium
(Nb) + tantalum  
...  
...  
...  
...  
...  
0.70–1.20  
4.75–5.50  
Titanium  
...  
1.90–2.30  
2.25–2.75  
2.75–3.25  
2.50–3.25  
2.25–2.75  
0.65–1.15  
Aluminum  
0.5 max  
1.38–1.65  
0.75–1.25  
1.20–1.60  
2.50–3.25  
0.40–1.00  
0.20–0.80  
Zirconium  
...  
0.020 max  
...  
0.02–0.12  
...  
...  
...  
Boron  
0.006 max  
0.003–0.010  
0.003–0.01  
0.003–0.01  
0.003–0.01  
...  
0.006 max  
Iron  
1.8 max  
1.5 max  
5.00 max  
2.00 max  
4.00 max  
5.00–9.00  
remainderB  
Copper  
0.5 max  
0.1 max  
...  
0.50 max  
0.15 max  
0.50 max  
0.30 max  
Nickel  
remainderB  
remainderB  
remainderB  
remainderB  
remainderB  
70.00 min  
50.0–55.0  
Tantalum  
0.2 max  
0.1 max  
...  
...  
...  
...  
...  
Columbium (Niobium)  
...  
0.2 max  
...  
...  
...  
...  
...  
Tungsten  
0.8 max  
0.5 max  
...  
...  
...  
...  
...  
UNS N07080
(Formerly
Grade 80A)  
UNS N07752  
UNS N09925  
UNS N07725  
Carbon  
0.10 max  
0.020–0.060  
0.03 max  
0.03 max  
Manganese  
1.00 max  
1.00 max  
1.0 max  
0.35 max  
Silicon  
1.00 max  
0.50 max  
0.5 max  
0.20 max  
Phosphorus  
...  
0.008 max  
0.03 max  
0.015 max  
Sulfur  
0.015 max  
0.003 max  
0.03 max  
0.010 max  
Chromium  
18.00–21.00  
14.50–17.00  
19.5–22.5†  
19.00–22.50†  
Cobalt  
...  
0.050 max  
...  
...  
Molybdenum  
...  
...  
2.5–3.5  
7.00–9.50  
Columbium
(Nb) + tantalum  
...  
0.70–1.20  
0.5 max (Nb only)  
2.75–4.00  
Titanium  
1.80–2.70  
2.25–2.75  
1.9–2.40  
1.00–1.70  
Aluminum  
0.50–1.80  
0.40–1.00  
0...

General Information

• Status: Historical
• Publication Date: 30-Apr-2012
• ICS: 77.120.40 - Nickel, chromium and their alloys
• ICS: 77.150.40 - Nickel and chromium products
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.07 - Refined Nickel and Cobalt and Their Alloys

Relations

• Replaces: ASTM B637-12 - Standard Specification for Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service
• Effective Date: 01-May-2012
• Referred By: ASTM F1370-92(2019)e1 - Standard Specification for Pressure-Reducing Valves for Water Systems, Shipboard
• Effective Date: 01-May-2012
• Referred By: ASTM F1508-96(2021) - Standard Specification for Angle Style, Pressure Relief Valves for Steam, Gas, and Liquid Services
• Effective Date: 01-May-2012
• Referred By: ASTM F2281-04(2017) - Standard Specification for Stainless Steel and Nickel Alloy Bolts, Hex Cap Screws, and Studs, for Heat Resistance and High Temperature Applications
• Effective Date: 01-May-2012
• Referred By: ASTM F38-18 - Standard Test Methods for Creep Relaxation of a Gasket Material
• Effective Date: 01-May-2012
• Referred By: ASTM B670-07(2018) - Standard Specification for Precipitation-Hardening Nickel Alloy (UNS N07718) Plate, Sheet, and Strip for High-Temperature Service
• Effective Date: 01-May-2012
• Referred By: ASTM F1511-18(2023) - Standard Specification for Mechanical Seals for Shipboard Pump Applications
• Effective Date: 01-May-2012
• Referred By: ASTM F1276-23 - Standard Test Method for Creep Relaxation of Laminated Composite Gasket Materials
• Effective Date: 01-May-2012
• Referred By: ASTM A1014/A1014M-16(2021) - Standard Specification for Precipitation-Hardening Bolting (UNS N07718) for High Temperature Service
• Effective Date: 01-May-2012

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
´1
Designation:B637 −12
StandardSpecification for
Precipitation-Hardening and Cold Worked Nickel Alloy Bars,
Forgings, and Forging Stock for Moderate or High
1
Temperature Service
This standard is issued under the fixed designation B637; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1
ε NOTE—Vanadium content for UNS N07752 in Table 1 was corrected editorially in November 2012.
1. Scope E139Test Methods for Conducting Creep, Creep-Rupture,
2 and Stress-Rupture Tests of Metallic Materials
1.1 This specification covers hot- and cold-worked
E1473Test Methods for Chemical Analysis of Nickel,
precipitation-hardenable nickel alloy rod, bar, forgings, and
Cobalt, and High-Temperature Alloys
forging stock for moderate or high temperature service (Table
1).
3. Terminology
1.2 The values stated in inch-pound units are to be regarded
3.1 Definitions:
as standard. The values given in parentheses are mathematical
3.1.1 bar, n—material of rectangular (flats), hexagonal,
conversions to SI units that are provided for information only
octagonal, or square solid section in straight lengths.
and are not considered standard.
3.1.2 rod, n—material of round solid section furnished in
1.3 This standard does not purport to address all of the
straight lengths.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to become familiar
4. Ordering Information
with all hazards including those identified in the appropriate
Material Safety Data Sheet (MSDS) for this product/material
4.1 It is the responsibility of the purchaser to specify all
as provided by the manufacturer, to establish appropriate
requirements that are necessary for material ordered under this
safety and health practices, and determine the applicability of
specification. Examples of such requirements include, but are
regulatory limitations prior to use.
not limited to, the following:
4.1.1 Alloy (Table 1).
2. Referenced Documents
4.1.2 Condition (temper or cold worked) (Tables 2 and 3
3
2.1 ASTM Standards:
and 6.1).
B880Specification for General Requirements for Chemical
4.1.3 Shape—Rod or bar (round, rectangle, square,
Check Analysis Limits for Nickel, Nickel Alloys and
hexagon, octagon).
Cobalt Alloys
4.1.3.1 Forging (sketch or drawing).
E8Test Methods for Tension Testing of Metallic Materials
4.1.4 Dimensions, including length.
E29Practice for Using Significant Digits in Test Data to
4.1.5 Quantity (mass or number of pieces).
Determine Conformance with Specifications
4.1.6 Forging Stock—Specifyifmaterialisstockforreforg-
ing.
1
This specification is under the jurisdiction of ASTM Committee B02 on
4.1.7 Finish.
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
4.1.8 Certification—State if certification is required (Sec-
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved May 1, 2012. Published May 2012. Originally
tion 15).
approved in 1970. Last previous edition addition approved in 2011 as
4.1.9 Samples for Product (Check) Analysis—Whether
B637–06(2011). DOI: 10.1520/B0637–12E01.
2 samples for product (check) analysis shall be furnished (9.2).
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
cation SB-637 in Section II of that Code.
4.1.10 Purchaser Inspection—If the purchaser wishes to
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
witness tests or inspection of material at the place of
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
manufacture,thepurchaseordermustsostateindicatingwhich
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tests or inspections are to be witnessed (Section 13).
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´1
B637−12
TABLE 1 Chemical Requirements
Element Composition Limits, %
UNS N07252 UNS N07001 UNS N07500 UNS N07750 UNS N07718
UNS N07022 UNS N07208 (Formerly (Formerly (Formerly (Formerly (Formerly
Grade 689) Grade 685) Grade 684) Grade 688) Grade 718)
Carbon 0.010 max 0.04–0.08 0.10–0.20 0.03–0.10 0.15 max 0.08 max 0.08 max
Manganese 0.5 max 0.3 max 0.50 max 1.00 max 0.75 max 1.00 max 0.35 max
Silicon 0.08 max 0.15 max 0.50 max 0.75 max 0.75 max 0.50 max 0.35 max
Phosphorus 0.025 max 0.015 max 0.015 max 0.030 max 0.015 max . 0.015 max
Sulfur 0.015 max 0.015 max 0.015 max 0.030 max 0.015 max 0.01
...