ASTM B511-98a
(Specification)Standard Specification for Nickel-Iron-Chromium-Silicon Alloy Bars and Shapes
Standard Specification for Nickel-Iron-Chromium-Silicon Alloy Bars and Shapes
SCOPE
1.1 This specification covers wrought alloys UNS N08330 and UNS N08332 in the form of hot-finished and cold-finished bar and shapes intended for heat-resisting applications and general corrosive service.
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.
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Designation: B 511 – 98a An American National Standard
Standard Specification for
Nickel-Iron-Chromium-Silicon Alloy Bars and Shapes
This standard is issued under the fixed designation B 511; 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 performance of material ordered under this specification.
Examples of such requirements include, but are not limited to
1.1 This specification covers wrought alloys UNS N08330
the following:
and UNS N08332 in the form of hot-finished and cold-finished
4.1.1 Alloy (Table 1),
bar and shapes intended for heat-resisting applications and
4.1.2 Quantity (weight or number of pieces),
general corrosive service.
4.1.3 ASTM designation and year of issue,
1.2 The values stated in inch-pound units are to be regarded
4.1.4 Section (round, square, I-beam, etc.),
as the standard. The values given in parentheses are for
4.1.5 Dimension, including length,
information only.
4.1.6 Certification—State if certification is required.
2. Referenced Documents
4.1.7 Samples for Product (Check) Analysis—State whether
samples for product (check) analysis shall be furnished.
2.1 ASTM Standards:
4.1.8 Purchaser Inspection—If a purchaser wishes to wit-
B 536 Specification for Nickel-Iron-Chromium-Silicon Al-
ness tests or inspections of material at the place of manufac-
loys (UNS N08330 and N08332) Plate, Sheet, and Strip
ture, the purchase order must so state indicating which tests or
B 880 Specification for General Requirements for Chemical
inspections are to be witnessed.
Check Analysis Limits for Nickel, Nickel Alloys and
Cobalt Alloys
5. Materials and Manufacture
E 8 Test Methods for Tension Testing of Metallic Materials
5.1 All material shall be furnished in the heat-treated
E 29 Practice for Using Significant Digits in Test Data to
condition, except that cold-drawn hexagons may be given a
Determine Conformance with Specifications
cold-draw sizing pass subsequent to the final heat treatment.
E 112 Test Methods for Determining the Average Grain
Size
NOTE 1—Hot-finished rectangular bar in widths 10 in. (254 mm) and
E 1473 Test Methods for Chemical Analysis of Nickel,
under may be furnished as hot-finished plate with sheared or cut edges in
accordance with Specification B 536.
Cobalt, and High-Temperature Alloys
6. Chemical Composition
3. Terminology
6.1 The material shall conform to the requirements as to
3.1 Definitions of Terms Specific to This Standard:
chemical composition specified in Table 2.
3.1.1 bar—material round, rectangular, hexagonal, octago-
6.2 If a product (check) analysis is performed by the
nal, or square solid section, furnished in straight lengths.
purchaser, the material shall conform to the product (check)
3.1.2 shapes—material of solid section in such forms as
analysis variations per B 880.
angles, channels, tees, I-beams, and four-fluted bars.
7. Mechanical and Other Properties
4. Ordering Information
7.1 The mechanical properties of the material at room
4.1 It is the responsibility of the purchaser to specify all
temperature shall conform to those shown in Table 1.
requirements that are necessary for the safe and satisfactory
7.2 Grain Size—Annealed alloy UNS N08332 shall con-
form to an average grain size of ASTM No. 5 or coarser.
7.3 Annealing Temperature—Alloy UNS N08330 shall be
This specification is under the jurisdiction of ASTM Committee B-2 on
annealed at 1900°F (1040°C) minimum. Alloy UNS N08332
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys.
shall be annealed at 2100°F (1150°C) minimum.
Current edition approved Oct. 10, 1998. Published November 1998. Originally
published as B 511 – 70. Last previous edition B 511 – 98.
8. Dimensions and Permissible Variations
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
cation SB-511 in Section II of that Code. 8.1 All bars and shapes shall conform to the permissible
Annual Book of ASTM Standards, Vol 02.04.
variations in dimensions specified in Tables 3-14, inclusive.
Annual Book of ASTM Standards, Vol 03.01.
Annual Book of ASTM Standards, Vol 14.02.
Annual Book of ASTM Standards, Vol 03.06.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
B511
TABLE 1 Mechanical Properties
Methods E 8 shall be used. Longitudinal strip specimens shall
Elongation in be prepared in accordance with Test Methods E 8 for rectan-
Tensile Yield Strength
2 in. or 50 1
gular bar up to ⁄2 in. (12.7 mm) inclusive, in thicknesses that
Alloy Condition Strength, 0.2% off-set,
mm, or 4D,
min, psi (MPa) min, psi (MPa)
are too wide to be pulled full size.
min, %
UNS annealed 70 000 (483) 30 000 (207) 30
N08330
13. Test Methods
UNS annealed 67 000 (462) 27 000 (186) 30
13.1 Chemical Composition—In case of dispute, the chemi-
N08332
cal analysis shall be made in accordance with Test Methods
E 1473.
TABLE 2 Chemical Requirements
13.2 Grain Size—The measurement of average grain size
may be carried out by the planimetric method, the comparison
Composition
Element
Limits, %
method, or the intercept method described in Methods E 112.
A
C .
In case of dispute the “referee” method for determining
Mn 2.00 max
average grain size shall be the planimetric method.
P 0.03 max
13.3 Tension Test—Test Methods E 8.
S 0.03 max
Si 0.75–1.50
13.4 Rounding Method—For purposes of determining com-
Cr 17.0–20.0
pliance with the limits in this specification, an observed value
Ni 34.0–37.0
or a calculated value shall be rounded as indicated below, in
Cu 1.00 max
Pb 0.005 max
accordance with the rounding method of Practice E 29:
Sn 0.025 max
B Rounded Unit for Observed or
Fe remainder
Requirements Calculated Value
A
Alloy UNS N08330: 0.08 max.
Chemical composition and tol- nearest unit in the last right-hand
Alloy UNS N08332: 0.05–0.10.
erances (when expressed in place of figures of the specified
B
Element shall be determined arithmetically by difference.
decimals) limit. If two choices are possible, as
when the digits dropped are exactly
a 5 or a 5 followed only by zeros,
choose the one ending in an even
9. Workmanship, Finish, and Appearance
digit with zero defined as an even
9.1 The material shall be uniform in quality and temper,
digit.
Tensile strength and yield nearest 1000 psi (6.9 MPa)
smooth, commercially straight, and free of injurious imperfec-
strength
tions.
Elongation nearest 1 %
Grain size
10. Sampling
0.0024 in. (0.060 mm) or nearest multiple of 0.0002 in. (0.005
larger mm)
10.1 Lot Definition:
Less than 0.0024 in. (0.060 nearest multiple of 0.0001 in. (0.002
10.1.1 A lot for chemical analysis shall consist of one heat. mm) mm)
10.1.2 A lot for mechanical properties and grain size testing
14. Inspection
shall consist of material from one heat of the same condition
14.1 Inspection of the material by the purchaser shall be as
and cross section, and in no case more than 30 000 lb (13 600
agreed upon between the purchaser and the supplier as part of
kg) in weight.
the purchase contract.
10.2 Test Material Selection:
10.2.1 Chemical Analysis—Representative samples from
15. Rejection and Rehearing
each lot shall be taken during pouring or subsequent process-
ing. 15.1 Material that fails to conform to the requirements of
10.2.1.1 Product (check) analysis shall be wholly the re- this specification may be rejected. Rejection should be reported
sponsibility of the purchaser. to the producer or supplier promptly and in writing. In case of
10.2.2 Mechanical Properties and Grain Size—Samples of dissatisfaction with the results of the test, the producer or
the material to provide test specimens for mechanical proper- supplier may make claim for a rehearing.
ties and grain size shall be taken from such locations in each lot
16. Certification
as to be representative of that lot.
16.1 When specified in the purchase order or contract, a
11. Number of Tests
producer’s or supplier’s certificatioin shall be furnished to the
11.1 Chemical Analysis—One test per lot. purchaser that the material was manufactured, sampled, tested,
11.2 Grain Size—One test per lot. and inspected in accordance with this specification and has
11.3 Mechanical Properties—One test per lot. been found to meet the requirements. When specified in the
purchase order or contract, a report of the test results shall be
12. Specimen Preparation
furnished.
12.1 Tension test specimens shall be taken from material in
17. Packaging and Package Marking
the final condition and tested in the direction of fabrication.
12.1.1 All material shall be tested in full cross-section size 17.1 Material shall be bundled or boxed in such a manner as
when possible. When a full cross-section size test cannot be to assure undamaged delivery to its destination when properly
performed, the largest possible round specimen shown in Test transported by a common carrier.
B511
TABLE 3 Permissible Variations in Size of Hot-Rolled Round and Square Bars
NOTE 1—Out-of-round is the difference between the maximum and minimum diameters of the bar, measured at the same cross section.
NOTE 2—Out-of-square section is the difference in the two dimensions at the same cross section of a square bar, each dimension being the distance
between opposite faces.
1 5 1
NOTE 3—Size tolerances for rounds in the size range from ⁄4 to ⁄16in. (6.4 to 7.9 mm), incl, and for rounds in the size range from ⁄4 in. (6.4 mm) to
approximate ⁄8 in. (15.9 mm), which are produced on rod mills in coils, are not shown herein.
NOTE 4—Variations in size of coiled produ
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