ASTM B148-97(2003)e1
(Specification)Standard Specification for Aluminum-Bronze Sand Castings
Standard Specification for Aluminum-Bronze Sand Castings
ABSTRACT
This specification establishes requirements for sand castings produced from copper-base alloys having the alloy numbers, commercial designations, and nominal compositions. The alloys the classified according to their nominal compositions: UNS No. C95200; UNS No. C95300; UNS No. C95400; UNS No. C95410; UNS No. C95500; UNS No. C95520; UNS No. C95600; UNS No. C95700; UNS No. C95800; UNS No. C95820; and UNS No. C95900. The castings shall conform to the chemical requirements specified. Mechanical properties shall be determined from separately cast test bar castings and shall meet the requirements. Brineel and Rockwell hardness readings shall be taken on the grip end of the tension test bar and shall be made in accordance with the specified requirements.
SCOPE
1.1 This specification establishes requirements for sand castings produced from copper-base alloys having the alloy numbers, commercial designations, and nominal compositions shown in Table 1.
1.2 The values stated in inch-pound units shall be regarded as the standard. Metric values given in parentheses are for information only.
General Information
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
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Designation: B 148 – 97 (Reapproved 2003)
Standard Specification for
Aluminum-Bronze Sand Castings
This standard is issued under the fixed designation B 148; 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.
e NOTE—Table 3 was editorially corrected in February 2005.
1. Scope* 4. Ordering Information
1.1 This specification establishes requirements for sand 4.1 Orders for castings under this specification shall include
castings produced from copper-base alloys having the alloy the following information:
numbers, commercialdesignations,andnominalcompositions 4.1.1 Quality of castings required,
shown in Table 1. 4.1.2 Copper alloy number (Table 1) and temper (as-cast,
1.2 The values stated in inch-pound units shall be regarded heat treated, and so forth),
as the standard. Metric values given in parentheses are for 4.1.3 Specification title, number, and year of issue,
information only. 4.1.4 Pattern or drawing number and condition (cast, ma-
chined, and so forth),
2. Referenced Documents
4.1.5 Analysis of residual elements, if specified in the
2.1 The following documents of the issue in effect on date
purchase order (Specification B 824),
of material purchase form a part of this specification to the 4.1.6 Pressure test requirements, if specified in the purchase
extent referenced herein:
order (Specification B 824),
2.2 ASTM Standards: 4.1.7 Soundness requirements, if specified in the purchase
B 208 Practice for Preparing Tension Test Specimens for
order (Specification B 824),
CopperAlloysforSand,PermanentMold,Centrifugal,and 4.1.8 Certification, if specified in the purchase order (Speci-
Continuous Castings
fication B 824),
B 824 Specification for General Requirements for Copper 4.1.9 Test report, if specified in the purchase order (Speci-
Alloy Castings fication B 824),
E10 Test Method for Brinell Hardness of Metallic Materi-
4.1.10 Witness inspection, if specified in the purchase order
als (Specification B 824),
E18 Test Methods for Rockwell Hardness and Rockwell
4.1.11 Approval of weld procedure and records of repairs, if
Superficial Hardness of Metallic Materials specified in the purchase order (Section 8),
5 6
E 527 Practice for Numbering Metals and Alloys (UNS)
4.1.12 ASME Boiler and Pressure Vessel Code application
(9.2 and Section 11),
3. General Requirements
4.1.13 Castings for seawater service (5.3), and
3.1 Material furnished under this specification shall con-
4.1.14 Product marking, if specified in the purchase order
form to the applicable requirements of Specification B 824.
(Specification B 824).
4.2 When material is purchased for agencies of the U.S.
Government, the Supplementary Requirements of this specifi-
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
cation may be specified.
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
Castings and Ingots for Remelting.
5. Materials and Manufacture
Current edition approved Apr. 10, 2003. Published June 2003. Originally
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approved in 1941. Last previous edition approved in 1997 as B 148 – 97 .
5.1 For better corrosion resistance in seawater applications,
The UNS system for copper and copper alloys (see Practice E 527) is a simple
castings in Copper Alloy UNS No. C95800 shall be given a
expansion of the former standard designation system accomplished by the addition
temper anneal heat treatment at 1250 6 50°F (675 6 10°C) for
of a prefix “C” and a suffix “00.” The suffix can be used to accommodate
composition variations of the base alloy.
Annual Book of ASTM Standards, Vol 02.01.
4 6
Annual Book of ASTM Standards, Vol 03.01. Available from the American Society of Mechanical Engineers, Three Park
Annual Book of ASTM Standards, Vol 01.01. Ave., New York, NY 10016-5990.
*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 148 – 97 (2003)
TABLE 1 Nominal Compositions
Nominal Composition, %
Copper Alloy Old Desig- Commercial
UNS No. nation Designation
Copper Nickel Iron Aluminum Silicon Manganese
C95200 9A Grade A 88.0 . . . 3.0 9.0 . . . . . .
A
C95300 9B Grade B 89.0 . . . 1.0 10.0 . . . . . .
A
C95400 9C Grade C 85.0 . . . 4.0 11.0 . . . . . .
A
C95410 . . 84.0 2.0 4.0 10.0 . .
A
C95500 9D Grade D 81.0 4.0 4.0 11.0 . . . . . .
A
C95520 . . 78.5 5.5 5.0 11.0 . .
C95600 9E Grade E 91.0 . . . . . . 7.0 2.0 . . .
C95700 9F Grade F 75.0 2.0 3.0 8.0 . . . 12.0
C95800 . . . . . . 81.3 4.5 4.0 9.0 . . . 1.2
C95820 . . . . . . 79.0 5.2 4.5 9.5 . . . 1.0
C95900 . . . . . . 87.5 . . . 4.5 13.0 . . . . . .
A
These grades respond to heat treatment.
TABLE 2 Chemical Requirements
Manganese-
Silicon Nickel
Nickel Aluminum
Classification Aluminum Bronze Nickel Aluminum Bronze Aluminum Aluminum
Aluminum Bronze
Bronze Bronze
Bronze
A B
Copper Alloy C95200 C95300 C95400 C95410 C95500 C95520 C95600 C95700 C95800 C95820 C95900
UNS No.
Composition, %
Copper 86.0 min 86.0 min 83.0 min 83.0 min 78.0 min 74.5 min 88.0 min 71.0 min 79.0 min 77.5 min remainder
Aluminum 8.5–9.5 9.0–11.0 10.0–11.5 10.0–11.5 10.0–11.5 10.5–11.5 6.0–8.0 7.0–8.5 8.5–9.5 9.0–10.0 12.0–13.5
C
Iron 2.5–4.0 0.8–1.5 3.0–5.0 3.0–5.0 3.0–5.0 4.0–5.5 . . . 2.0–4.0 3.5–4.5 4.0–5.0 3.0–5.0
Manganese . . . . . . 0.50 max 0.50 max 3.5 max 1.5 max . . . 11.0–14.0 0.8–1.5 1.5 max 1.5 max
C
Nickel (incl . . . . . . 1.5 max 1.5–2.5 3.0–5.5 4.2–6.0 0.25 max 1.5–3.0 4.0–5.0 4.5–5.8 0.5 max
cobalt)
Silicon . . . . . . . . . . . . . . . 0.15 max 1.8–3.2 0.10 max 0.10 max 0.10 max . . .
Lead . . . . . . . . . . . . . . . 0.03 max . . . 0.03 max 0.03 max 0.02 max . . .
A
Chromium shall be 0.05 max, cobalt 0.20 max, tin 0.25 max, and zinc 0.30 max.
B
Zinc shall be 0.2 max and tin 0.02 max.
C
Iron content shall not exceed the nickel content.
6 h minimum. Cooling shall be by the fastest means possible unnamed elements. Copper may be given as remainder and
that will not cause excessive distortion or cracking. Propeller may be taken as the difference between the sum of all elements
castings shall be exempt from this requirement. analyzed and 100 %. When all the elements in the table are
5.2 CopperAlloy UNS Nos. C95300, C95400, C95410, and analyzed, their sum shall be as specified in the following table:
C95500 may be supplied in the heat-treated condition to obtain
Copper Plus Named Elements,
Copper Alloy UNS Number min, %
the higher mechanical properties shown in Table 3. Suggested
heat treatments for these alloys and Copper Alloy UNS No.
C95200 99.0
C95520 are given in Table 4. Actual practice may vary by
C95300 99.0
C95400 99.5
manufacturer.
C95410 99.5
5.3 Copper Alloy UNS No. C95520 is used in the heat-
C95500 99.5
treated condition only.
C95520 99.5
C95600 99.0
5.4 Copper Alloy UNS No. C95900 is normally supplied
C95700 99.5
annealed between 1100°F (595°C) and 1300°F (705°C) fol-
C95800 99.5
lowed by air cooling. C95820 99.2
C95900 99.5
5.5 Copper Alloy UNS No. C95820 is supplied in the
as-cast condition.
7. Mechanical Properties
5.6 Separately cast test bar coupons representing castings
7.1 Mechanical properties shall be determined from sepa-
made in Copper Alloy UNS Nos. C95300HT, C95400HT,
rately cast test bar castings and shall meet the requirements
C95410HT, C95500HT, C95520HT, C95800 temper annealed,
shown in Table 3.
and C95900 annealed shall be heat treated with the castings.
6. Chemical Composition 8. Casting Repair
6.1 Thecastingsshallconformtothechemicalrequirements 8.1 Alloys included in this specification are generally weld-
shown in Table 2. able. Weld repairs may be made at the manufacturer’s discre-
6.2 These specification limits do not preclude the presence tion provided each excavation does not exceed 20 % of the
of other elements. Limits may be established by agreement casting section or wall thickness or 4 % of the casting surface
between manufacturer or supplier and purchaser for these area.
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B 148 – 97 (2003)
TABLE 3 Mechanical Requirements
Manganese-
Aluminum Bronze Nickel Aluminum Bronze Nickel
Silicon Aluminum Nickel Aluminum
Classification Aluminum
Bronze Aluminum Bronze
As-Cast As-Cast Bronze
Bronze
C95400 and
A B
Copper Alloy UNS No. C95200 C95300 C95500 C95820 C95600 C95700 C95800 C95900
C95410
Tensile strength, min, 65 65 75 90 94 60 90 85 .
C D
ksi (MPa ) (450) (450) (515) (620) (650) (415) (620) (585) .
E F
Yield strength, min, 25 25 30 40 39 28 40 35 .
C D F
ksi (MPa ) (170) (170) (205) (275) (270) (195) (275) (240) .
Elongation in 2 in. 20 20 12 6 13 10 20 15 . . .
(50.8 mm), %
G
Brinell hardness No. 110 110 150 190 . . . . .
(3000-kg load)
Heat-Treated
C95400 and
H
Copper Alloy UNS No. C95300 C95500 C95520
C95410
Tensile strength, min, . 80 90 110 125 . . . .
C D
ksi (MPa) . (550) (620) (760) (862) . . . .
E F
Yield strength, min, . 40 45 60 95 . . . .
C D F
ksi (MPa) . (275) (310) (415) (655) . . . .
Elongation in 2 in. . 12 6 5 2 . . . .
(50.8 min), %
G I
Brinell hardness No. . . . 160
...
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