ASTM B424-98a

Standard Specification for Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825 and UNS N08221)* Plate, Sheet, and Strip

SCOPE
1.1 This specification  covers rolled nickel-iron-chro- mium-molybdenum-copper alloy (UNS N08825 and UNS N08221)* plate, sheet, and strip.  
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.

General Information

• Status: Historical
• Publication Date: 31-Dec-1992
• 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

• Replaced By: ASTM B424-05 - Standard Specification for Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825 and UNS N08221)* Plate, Sheet, and Strip
• Effective Date: 01-May-2005
• Referred By: ASTM B906-22 - Standard Specification for General Requirements for Flat-Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip
• Effective Date: 01-Jan-1993
• Referred By: ASTM B474/B474M-19 - Standard Specification for Electric Fusion Welded Nickel and Nickel Alloy Pipe
• Effective Date: 01-Jan-1993
• Referred By: ASTM B425-19 - Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloys Rod and Bar
• Effective Date: 01-Jan-1993
• Referred By: ASTM A265-12(2019) - Standard Specification for Nickel and Nickel-Base Alloy-Clad Steel Plate
• Effective Date: 01-Jan-1993
• Referred By: ASTM B366/B366M-23 - Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings
• Effective Date: 01-Jan-1993

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B 424 – 98a
Standard Specification for
Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825 and UNS N08221)* Plate,
Sheet, and Strip
This standard is issued under the fixed designation B 424; 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.
TABLE 1 Product Description
1. Scope
2 Product Thickness, in. (mm) Width, in. (mm)
1.1 This specification covers rolled nickel-iron-chromium-
A B
Hot-rolled plate ⁄16 (4.76) and over (Tables 4 (Table 7)
molybdenum-copper alloy (UNS N08825 and UNS N08221)*
and 5)
plate, sheet, and strip.
A
3 3
Cold-rolled plate ⁄16 to ⁄8 (4.8 to 9.5), incl (Table 7)
1.2 The values stated in inch-pound units are to be regarded
(Table 4)
A
Hot-rolled sheet 0.018 to 0.250 (0.46 to 6.4), (Table 9)
as the standard. The values given in parentheses are for
incl (Table 6)
information only.
C
Cold-rolled sheet 0.018 to 0.250 (0.46 to 6.4), (Table 9)
incl (Table 6)
C
2. Referenced Documents
Cold-rolled strip 0.005 to 0.250 (0.13 to 6.4), (Table 9)
incl (Table 6)
2.1 ASTM Standards:
A
3 1
Material ⁄16 to ⁄4in. (4.8 to 6.4 mm), incl, in thickness may be furnished as
B 425 Specification for Ni-Fe-Cr-Mo-Cu Alloy (UNS
sheet or plate provided the material meets the specification requirements for the
N08825 and UNS N08221) Rod and Bar
condition ordered.
B
Hot-rolled plate, in widths 10 in. (254 mm) and under, may be furnished as
B 880 Specification for General Requirements for Chemical
hot-finishedrectangleswithshearedorcutedgesinaccordancewithSpecification
Check Analysis Limits for Nickel, Nickel Alloys and
B 425, provided the mechanical property requirements of this specification are
Cobalt Alloys
met.
4 C
Material under 48 in. (1219 mm) in width may be furnished as sheet or strip
E 8 Test Methods forTensionTesting of Metallic Materials
provided the material meets the specification requirements for the condition
E 29 Practice for Using Significant Digits in Test Data to
ordered.
Determine Conformance with Specifications
E 1473 Test Methods for Chemical Analysis of Nickel,
4. Ordering Information
Cobalt, and High-Temperature Alloys
4.1 It is the responsibility of the purchaser to specify all
requirements that are necessary for the safe and satisfactory
3. Terminology
performance of material ordered under this specification.
3.1 Definitions of Terms Specific to This Standard: Descrip-
Examples of such requirements include, but are not limited to,
tions of Terms Specific to This Standard—The terms given in
the following:
Table 1 shall apply.
4.1.1 ASTM designation and year of issue,
4.1.2 Alloy name or UNS number,
4.1.3 Condition—Table 3 and Appendix X1,
This specification is under the jurisdiction of ASTM Committee B-2 on
4.1.4 Finish—Appendix X1,
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
4.1.5 Dimensions—Thickness, width, and length,
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved Oct. 10, 1998. Published November 1998. Originally
4.1.6 Quantity,
published as B 424 – 64 T. Last previous edition B 424 – 98.
4.1.7 Optional Requirements:
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
4.1.7.1 Sheet and Strip—Whether to be furnished in coil, in
cation SB-424 in Section II of that Code.
cut straight lengths, or in random straight lengths,
* New designation established in accordance withASTM E527 and SAE J1086,
Practice for Numbering Metals and Alloys (UNS).
4.1.7.2 Strip—Whether to be furnished with commercial slit
Annual Book of ASTM Standards, Vol 02.04.
edge, square edge, or round edge,
Annual Book of ASTM Standards, Vol 03.01.
4.1.7.3 Plate—Whether to be furnished specially flattened
Annual Book of ASTM Standards, Vol 14.02.
Annual Book of ASTM Standards, Vol 03.06. (see 7.7); also how plate is to be cut (Table 4 and Table 5),
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B 424
TABLE 2 Chemical Requirements
Element UNS N08825 UNS N08221
Nickel 38.0 to 46.0 39.0 to 46.0
Chromium 19.5 to 23.5 20.0 to 22.0
A
Iron 22.0 min balance
Manganese 1.0 max 1.0 max
Carbon 0.05 max 0.025 max
Copper 1.5 to 3.0 1.5 to 3.0
Silicon 0.5 max 0.5 max
Sulfur 0.03 max 0.03 max
Aluminum 0.2 max 0.2 max
Titanium 0.6 to 1.2 0.6 to 1.0
Molybdenum 2.5 to 3.5 5.0 to 6.5
A
Element shall be determined arithmetically by difference.
TABLE 3 Mechanical Properties for Plate, Sheet, and Strip
(All Thicknesses and Sizes Unless Otherwise Indicated)
A
Alloy Condition Tensile Strength, Yield Strength (0.2 % Offset), Elongation in 2 in. or 50 mm
min, ksi (MPa) min, ksi (MPa) (or 4 D), min, %
Hot-Rolled Plate:
UNS N08825 annealed 85 (586) 35 (241) 30
UNS N08221 annealed 79 (544) 34 (235) 30
Cold-Rolled Plate:
UNS N08825 annealed 85 (586) 35 (241) 30
UNS N08221 annealed 79 (544) 34 (235) 30
Hot-Rolled Sheet:
UNS N08825 annealed 85 (586) 35 (241) 30
UNS N08221 annealed 79 (544) 34 (235) 30
Cold-Rolled Sheet:
UNS N08825 annealed 85 (586) 35 (241) 30
UNS N08221 annealed 79 (544) 34 (235) 30
Cold-Rolled Strip:
B B
UNS N08825 annealed 85 (586) 35 (241) 30
B B
UNS N08221 annealed 79 (544) 34 (235) 30
A
Yield strength requirements do not apply to material under 0.020 in. (0.51 mm) in thickness.
B
Not applicable for thickness under 0.010 in. (0.25 mm).
4.1.8 Certification—State if certification is required (Sec- ness and permissible excess in overweight shall not exceed the
tion 15), amounts prescribed in Table 6.
4.1.9 Samples for Product (Check) Analysis—Whether 7.1.1.1 For use with Table 6, plate shall be assumed to
3 3
samples for product (check) analysis should be furnished (see weigh 0.294 lb/in. (8.138 g/cm ).
5.2), and 7.1.2 Plate—Forplateover2in.(50.8mm)inthickness,the
4.1.10 Purchaser Inspection—If the purchaser wishes to permissible variations over the specified thickness shall not
witness tests or inspection of material at the place of manu- exceed the amounts prescribed in Table 7.
facture, the purchase order must so state, indicating which tests 7.1.3 Sheet and Strip—The permissible variations in thick-
or inspections are to be witnessed (Section 13). ness of sheet and strip shall be as prescribed in Table 8. The
thickness of strip and sheet shall be measured with the
5. Chemical Composition
micrometer spindle ⁄8 in. (9.5 mm) or more from either edge
5.1 The material shall conform to the composition limits for material 1 in. (25.4 mm) or over in width and at any place
specified in Table 2. on the strip under 1 in. (25.4 mm) in width.
5.2 If a product (check) analysis is performed by the 7.2 Width or Diameter:
purchaser, the material shall conform to the product (check) 7.2.1 Plate—The permissible variations in width of rectan-
analysis per B 880. gular plates and diameter of circular plates shall be as
prescribed in Table 4 and Table 9.
6. Mechanical Properties
7.2.2 Sheet and Strip—The permissible variations in width
6.1 Mechanical Properties—The material shall conform to for sheet and strip shall be as prescribed in Table 10.
the mechanical properties specified in Table 3. 7.3 Length:
7.3.1 Sheet and strip of all sizes may be ordered to cut
7. Dimensions and Permissible Variations
lengths, in which case a variation of ⁄8 in. (3.2 mm) over the
7.1 Thickness and Weight: specified length shall be permitted.
7.1.1 Plate—For plate up to 2 in. (50.8 mm), inclusive, in 7.3.2 Permissible variations in length of rectangular plate
thickness, the permissible variation under the specified thick- shall be as prescribed in Table 5.
B 424
A B,C
TABLE 4 Permissible Variations in Width of Sheared, Plasma Torch-Cut, and Abrasive-Cut Rectangular Plate
Permissible Variations in Widths for Widths Given, in. (mm)
Up to 30 (760), Over 30 to 72 Over 72 to 108 Over 108 to 144 Over 144 to 160
Specified Thickness incl (760 to 1830), incl (1830 to 2740), (2740 to 3660), (3660 to 4070),
incl incl incl
+−+−+−+−+−
Inches
D
Sheared:
3 5 3 1 1 1 3 1 1 1
⁄16 to ⁄16, excl ⁄16 ⁄8 ⁄4 ⁄8 ⁄8 ⁄8 ⁄2 ⁄8 . .
5 1 1 1 3 1 3 1 1 1 5 1
⁄16 to ⁄2, excl ⁄4 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄2 ⁄8 ⁄8 ⁄8
1 3 3 1 3 1 1 1 5 1 3 1
⁄2 to ⁄4, excl ⁄8 ⁄8 ⁄8 ⁄8 ⁄2 ⁄8 ⁄8 ⁄8 ⁄4 ⁄8
3 1 1 1 1 5 1 3 1 7 1
⁄4 to 1, excl ⁄2 ⁄8 ⁄2 ⁄8 ⁄8 ⁄8 ⁄4 ⁄8 ⁄8 ⁄8
1 5 1 5 1 3 1 7 1 1
1to1 ⁄4, incl ⁄8 ⁄8 ⁄8 ⁄8 ⁄4 ⁄8 ⁄8 ⁄8 1 ⁄8
E,F
Abrasive-cut:
3 1 1 1 1 1 1 1 1 1 1 1
⁄16 to 1 ⁄4, incl ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8
1 3 3 1 3 1 3 1 3 1 3 1
Over 1 ⁄4 to 2 ⁄4, incl ⁄16 ⁄8 ⁄16 ⁄8 ⁄16 ⁄8 ⁄16 ⁄8 ⁄16 ⁄8
G
Plasma torch-cut:
3 1 1 1 1 1
⁄16 to 2, excl ⁄2 0 ⁄2 0 ⁄2 0 ⁄2 0 ⁄2 0
5 5 5 5 5
2to3,incl ⁄8 0 ⁄8 0 ⁄8 0 ⁄8 0 ⁄8 0
Millimetres
D
Sheared:
4.8 to 7.9, excl 4.8 3.2 6.4 3.2 9.5 3.2 12.7 3.2 . .
7.9 to 12.7, excl 6.4 3.2 9.5 3.2 9.5 3.2 12.7 3.2 15.9 3.2
12.7 to 19.1, excl 9.5 3.2 9.5 3.2 12.7 3.2 15.9 3.2 19.1 3.2
19.1 to 25.4, excl 12.7 3.2 12.7 3.2 15.8 3.2 19.1 3.2 22.2 3.2
25.4 to 31.8, incl 15.9 3.2 15.9 3.2 19.1 3.2 22.2 3.2 25.4 3.2
E,F
Abrasive-cut:
4.8 to 31.8, incl 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2
Over 31.8 to 69.8, incl 4.8 3.2 4.8 3.2 4.8 3.2 4.8 3.2 4.8 3.2
G
Plasma torch-cut:
4.8 to 50.8, excl 12.7 0 12.7 0 12.7 0 12.7 0 12.7 0
50.8 to 76.2, incl 15.9 0 15.9 0 15.9 0 15.9 0 15.9 0
A
Permissible variations in width for powder- or inert arc-cut plate shall be as agreed upon between the manufacturer and the purchaser.
B
Permissible variations in machined, powder-, or inert arc-cut circular plate shall be as agreed upon between the manufacturer and the purchaser.
C
Permissible variations in plasma torch-cut sketch plates shall be as agreed upon between the manufacturer and the purchaser.
D 3 3
Theminimumshearedwidthis10in.(254mm)formaterial ⁄4in.(19.1mm)andunderinthicknessand20in.(508mm)formaterialover ⁄4 in.(19.1mm)inthickness.
E
The minimum abrasive-cut width is 2 in. (50.8 mm) and increases to 4 in. (101.6 mm) for thicker plates.
F
These tolerances are applicable to lengths of 240 in. (6100 mm), max. For lengths over 240 in., an additional ⁄16 in. (1.6 mm) is permitted, both plus and minus.
G
Thetolerancespreadshownforplasmatorchcuttingmaybeobtainedallontheminusside,ordividedbetweentheplusandminussideifsospecifiedbythepurchaser.
7.4 Straightness: 7.7 Flatness—Standard flatness tolerances for plate shall
7.4.1 The edgewise curvature (depth of chord) of flat sheet, conform to the requirements of Table 11. ”Specifically-
strip, and plate shall not exceed 0.05 in. (1.27 mm) multiplied flattened” plate, when so specified, shall have permissible
by the length in feet (0.04 mm multiplied by the length in
variations in flatness as agreed upon between the manufacturer
centimetres).
and the purchaser.
7.4.2 Straightness for coiled material is subject to agree-
ment between the manufacturer and the purchaser.
8. Workmanship, Finish, and Appearance
7.5 Edges:
8.1 The material shall be uniform in quality and temper,
7.5.1 When finished edges of strip are specified in the
smooth, commercially straight or flat, and free of injurious
contract or order, the following descriptions shall apply:
imperfections.
7.5.1.1 Square-edge strip shall be supplied with finished
edges, with sharp, square corners, without bevel or rounding.
9. Sampling
7.5.1.2 Round-edge strip shall be supplied with finished
edges, semicircular in form, the diameter of the circle forming
9.1 Lot—Definition:
the edge being equal to the strip thickness.
9.1.1 A lot for chemical analysis shall consist of one heat.
7.5.1.3 When no description of any required form of strip
9.1.2 A lot for mechanical testing shall consist of all
edge is given, it shall be understood that edges such as those
material from the same heat, nominal thickness, and condition.
resulting from slitting or shearing will be acceptable.
9.1.2.1 Where material cannot be identified by heat, a lot
7.5.1.4 Sheet shall have sheared or slit edges.
shall consist of not more than 500 lb (227 kg) of material in the
7.5.1.5 Plate shall have sheared or cut (machined, abrasive
same thickness and condition, except for plates weighing over
cut, powder cut, or inert arc cut) edges, as specified.
500 lb (227 kg), in which case only one specimen shall be
7.6 Squareness (Sheet)—For sheets of all thicknesses, the
1 taken.
angle between adjacent sides shall be 906 0.15° ( ⁄16 in. in 24
in.) (1.6 mm in 610 mm). 9.2 Test Material Selection:
B 424
A B C
TABLE 5 Permissible Variations in Length of Sheared, Plasma Torch-Cut, and Abrasive-Cut Rectangular Plate
Permissible Variation in Length Given, in. (mm)
Over 60 to Over 96 to Over 120 to Over 240 to Over 360 to Over 450 to
Up to 60
96 (1520 120 (2440 240 (3050 360 (6096 450 (9144 540 (11 430 Over 540
Specified Thickness (1520),
to 2440), to 3050), to 6096), to 9144), to 11 430), to 13 716), (13 716)
incl
incl incl incl incl incl incl
+−+−+−+−+−+−+−+−
Inches
D
Sheared:
3 5 3 1 1 1 3 1 1 1 5 1 3 1 7 1
⁄16 to ⁄16, excl ⁄16 ⁄8 ⁄4 ⁄8 ⁄8 ⁄8 ⁄2 ⁄8 ⁄8 ⁄8 ⁄4 ⁄8 ⁄8 ⁄8 . .
5 1 3 1 1 1 1 1 1 1 5 1 3 1 7 1 1
⁄16 to ⁄2, excl ⁄8 ⁄8 ⁄2 ⁄8 ⁄2 ⁄8 ⁄2 ⁄8 ⁄8 ⁄8 ⁄4 ⁄8 ⁄8 ⁄8 1 ⁄8
1 3 1 1 1 1 5 1 5 1 3 1 7 1 1 1 3 1
⁄2 to ⁄4, excl ⁄2 ⁄8 ⁄2 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄4 ⁄8 ⁄8 ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8
3 5 1 5 1 5 1 3 1 7 1 1 1 3 1 5 1
⁄4 to 1, excl ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄4 ⁄8 ⁄8 ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8
1 3 1 3 1 3 1 7 1 1 1 3 1 5 1
1to1 ⁄4, incl ⁄4 ⁄8 ⁄4 ⁄8 ⁄4 ⁄8 ⁄8 ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 . .
E
Abrasive-cut:
3 1 1 1 1 1 1 1 1 1 1 1 1 1
⁄16 to 1 ⁄4, incl ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 ⁄8 . . . .
1 3 3 1 3 1 3 1 3 1 3 1 3 1
Over 1 ⁄4 to 2 ⁄4, incl ⁄16 ⁄8 ⁄16 ⁄8 ⁄16 ⁄8 ⁄16 ⁄8 ⁄16 ⁄8 ⁄16 ⁄8 . . . .
F
Plasma torch-cut:
3 1 1 1 1 1 1 1 1
⁄16 to 2, excl ⁄2 0 ⁄2 0 ⁄2 0 ⁄2 0 ⁄2 0 ⁄2 0 ⁄2 0 ⁄2 0
5 5 5 5 5 5 5 5
2to3,incl ⁄8 0 ⁄8 0 ⁄8 0 ⁄8 0 ⁄8 0 ⁄8 0 ⁄8 0 ⁄8 0
Millimetres
D
Sheared:
4.8 to 7.9, excl 4.8 3.2 6.4 3.2 9.5 3.2 12.7 3.2 15.9 3.2 19.0 3.2 22.2 3.2 . .
7.94 to 12.7, excl 9.5 3.2 12.7 3.2 12.7 3.2 12.7 3.2 15.9 3.2 19.0 3.2 22.2 3.2 25.4 3.2
12.7 to 19.0, excl 12.7 3.2 12.7 3.2 15.9 3.2 15.9 3.2 19.0 3.2 22.2 3.2 28.6 3.2 34.9 3.2
19.0 to 25.4, excl 15.9 3.2 15.9 3.2 15.9 3.2 19.0 3.2 22.2 3.2 28.6 3.2 34.9 3.2 41.2 3.2
25.4 to 31.8, incl 19.0 3.2 19.0 3.2 19.0 3.2 22.2 3.2 28.6 3.2 34.9 3.2 41.2 3.2 . .
E
Abrasive-cut:
4.8 to 31.8, incl 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 . . . .
Over 31.8 to 69.9, incl 4.8 3.2 4.8 3.2 4.8 3.2 4.8 3.2 4.8 3.2 4.8 3.2 . . . .
F
Plasma torch-cut:
4.8 to 50.8, excl 12.7 0 12.7 0 12.7 0 12.7 0 12.7 0 12.7 0 12.7 0 12.7 0
...