ASTM B763-98

Standard Specification for Copper Alloy Sand Castings for Valve Application

SCOPE
1.1 This specification establishes requirements for copper alloy sand castings for valve applications. Nominal compositions of the alloys defined by this specification are shown in Table 1.   Note 1-This specification does not cover Copper Alloy UNS Nos. C83600, C92200, C96200, and C96400. These alloys are also used in valve applications. They are covered by the following specifications: C83600, B62 C92200, B61 C96200, B369 C96400, B369
1.2 The castings produced under this specification are used in products which may be manufactured in advance and supplied for sale from stock by the manufacturer.
1.3 The values stated in inch-pound units are to be regarded as the standard. SI values given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 09-May-1998
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.05 - Castings and Ingots for Remelting

Relations

• Replaced By: ASTM B763-04 - Standard Specification for Copper Alloy Sand Castings for Valve Applications
• Effective Date: 01-Oct-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 763 – 98
Standard Specification for
Copper Alloy Sand Castings for Valve Application
This standard is issued under the fixed designation B 763; 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.
1. Scope * gal, and Continuous Castings
B 369 Specification for Copper-Nickel Alloy Castings
1.1 This specification establishes requirements for copper
B 824 Specification for General Requirements for Copper
alloy sand castings for valve applications. Nominal composi-
Alloy Castings
tions of the alloys defined by this specification are shown in
E 10 Test Method for Brinell Hardness of Metallic Materi-
Table 1.
als
NOTE 1—This specification does not cover Copper Alloy UNS Nos. 5
E 527 Practice for Numbering Metals and Alloys (UNS)
C83600, C92200, C96200, and C96400. These alloys are also used in
valve applications. They are covered by the following specifications:
3. General Requirements
3.1 The following sections of Specification B 824 form a
C83600, B 62
part of this specification.
C92200, B 61
C96200, B 369
3.1.1 Terminology (Section 3),
C96400, B 369
3.1.2 Other Requirements (Section 6),
3.1.3 Dimensions, Mass, and Permissible Variations (Sec-
tion 7),
1.2 The castings produced under this specification are used
3.1.4 Workmanship, Finish, and Appearance (Section 8),
in products which may be manufactured in advance and
3.1.5 Sampling (Section 9),
supplied for sale from stock by the manufacturer.
3.1.6 Number of Tests and Retests (Section 10),
1.3 The values stated in inch-pound units are to be regarded
3.1.7 Specimen Preparation (Section 11),
as the standard. SI values given in parentheses are for infor-
3.1.8 Test Methods (Section 12),
mation only.
3.1.9 Significance of Numerical Limits (Section 13),
2. Referenced Documents
3.1.10 Inspection (Section 14),
3.1.11 Rejection and Rehearing (Section 15),
2.1 The following documents in the current issue of the
3.1.12 Certification (Section 16),
Book of Standards form a part of this specification to the extent
3.1.13 Test Report (Section 17),
referenced herein:
3.1.14 Product Marking (Section 18),
2.2 ASTM Standards:
3.1.15 Packaging and Package Marking (Section 19),
B 61 Specification for Steam or Valve Bronze Castings
3.1.16 Supplementary Requirements.
B 62 Specification for Composition Bronze or Ounce Metal
Castings
4. Ordering Information
B 208 Practice for Preparing Tension Test Specimens for
4.1 Orders for castings under this specification should
Copper-Base Alloys for Sand, Permanent Mold, Centrifu-
include the following information:
4.1.1 Specification title, number, and year of issue,
4.1.2 Quantity of castings,
This specification is under the jurisdiction of ASTM Committee B-5 on Copper
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
4.1.3 Copper Alloy UNS Number and temper (as-cast,
Castings and Ingots for Remelting.
heat-treated, etc.),
Current edition approved May 10, 1998. Published January 1999. Originally
4.1.4 Pattern or drawing number and condition (as-cast,
published as B 763 – 86. Last previous edition B 763 – 96.
The UNS system for copper and copper alloys (see Practice E 527) is a simple machined, etc.),
expansion of the former standard designation system accomplished by the addition
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 03.01.
3 5
Annual Book of ASTM Standards, Vol 02.01. Annual Book of ASTM Standards, Vol 01.01.
*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.
B 763
TABLE 1 Nominal Compositions
Alumi- Man- Sili-
Classification Copper Alloy UNS No. Commercial Designation Copper Tin Lead Zinc Nickel Iron Bismuth
num ganese con
1 1
Leaded red brass C83450 88 2 ⁄226 ⁄2 1 . . . . .
C83800 83-4-6-7 or commercial red brass 83 4 6 7 . . . . . . . . . . . . . . . . . .
Leaded semi-red brass C84400 81-3-7-9 or valve composition 81 3 7 9 . . . . . . . . . . . . . . . . . .
1 1 1 1
C84800 76-2 ⁄2-6 ⁄2-15, or semi-red brass 76 2 ⁄2 6 ⁄2 15 . . . . . .
Leaded yellow brass C85200 high-copper yellow brass 72 1 3 24 . . . . . . . . . . . . . . . . . .
C85400 commercial No. 1 yellow brass 67 1 3 29 . . . . . . . . . . . . . . . . . .
C85700 leaded naval brass 61 1 1 37 . . . . . . . . . . . . . . . . . .
High-strength yellow brass C86200 high-strength manganese bronze 63 . . . . . . 27 . . . 3 4 3 . . . . . .
C86300 high-strength manganese bronze 61 . . . . . . 27 . . . 3 6 3 . . . . . .
1 1
C86400 leaded manganese bronze 58 1 1 38 . . . 1 ⁄2 ⁄2 . .
C86500 No. 1 manganese bronze 58 . . . . . . 39 . . . 1 1 1 . . . . . .
C86700 leaded manganese bronze 58 1 1 34 . . . 2 2 2 . . . . . .
Silicon bronze and silicon C87300 silicon bronze 95 . . . . . . . . . . . . . . . . . . 1 4 . . .
1 1
brass C87400 silicon brass 82 . . . ⁄2 14 . . . . 3 ⁄2 .
C87500 silicon brass 82 . . . . . . 14 . . . . . . . . . . . . 4 . . .
C87600 silicon bronze 89 . . . . . . 6 . . . . . . . . . . . . 5 . . .
C87610 silicon bronze 92 . . . . . . 4 . . . . . . . . . . . . 4 . . .
Bismuth semi-red brass C89844 bismuth brass 84 ⁄2 4 . 8 . . . . . 3
Tin bronze and leaded tin C90300 88-8-0-4, or modified “G” bronze 88 8 . . . 4 . . . . . . . . . . . . . . . . . .
bronze
C90500 88-10-0-2, on “G” bronze 88 10 . . . 2 . . . . . . . . . . . . . . . . . .
C92300 87-8-1-4, or Navy PC 87 8 1 4 . . . . . . . . . . . . . . . . . .
C92600 87-10-1-2 87 10 1 2 . . . . . . . . . . . . . . . . . .
High-lead tin bronze C93200 83-7-7-3 83 7 7 3 . . . . . . . . . . . . . . . . . .
C93500 85-5-9-1 85 5 9 1 . . . . . . . . . . . . . . . . . .
C93700 80-10-10 80 10 10 . . . . . . . . . . . . . . . . . . . . .
C93800 78-7-15 78 7 15 . . . . . . . . . . . . . . . . . . . . .
C94300 71-5-24 71 5 24 . . . . . . . . . . . . . . . . . . . . .
Nickel-tin bronze and C94700 nickel-tin bronze grade “A” 88 5 . . . 2 5 . . . . . . . . . . . . . . .
leaded nickel-tin bronze C94800 leaded nickel-tin bronze grade “B” 87 5 1 2 5 . . . . . . . . . . . . . . .
C94900 leaded nickel-tin bronze grade “C” 80 5 5 5 5 . . . . . . . . . . . . . . .
Aluminum bronze C95200 Grade A 88 . . . . . . . . . . . . 3 9 . . . . . . . . .
C95300 Grade B 89 . . . . . . . . . . . . 1 10 . . . . . . . . .
C95400 Grade C 85 . . . . . . . . . . . . 4 11 . . . . . . . . .
C95410 84 . . . . . . . . . 2 4 10 . . . . . . . . .
Silicon aluminum bronze C95600 Grade E 91 . . . . . . . . . . . . . . . 7 . . . 2 . . .
Nickel aluminum bronze C95500 Grade D 81 . . . . . . . . . 4 4 11 . . . . . . . . .
C95800 81.3 . . . . . . . . . 4.5 4 9 1.2 . . . . . .
Leaded nickel bronze C97300 12 % leaded nickel silver 57 2 9 20 12 . . . . . . . . . . . . . . .
C97600 20 % leaded nickel silver 64 4 4 8 20 . . . . . . . . . . . . . . .
C97800 25 % leaded nickel silver 66 5 2 2 25 . . . . . . . . . . . . . . .
Special alloys C99400 87 . . . . . . 4.4 3.0 3.0 1.6 . . . 1.0 . . .
C99500 87 . . . . . . 1.5 4.5 4.0 1.7 . . . 1.3 . . .
4.1.5 When castings are purchased for agencies of the U.S. 5.2 Copper Alloy UNS Nos. C94700, C95300, C95400,
Government, the Supplementary Requirements of Specifica- C95410, and C95500 may be supplied in the heat-treated
tion B 824 may be specified. condition to obtain the higher mechanical properties shown in
4.2 The following requirements are optional and should be Table 4. Suggested heat treatments for these alloys and copper
specified in the purchase order when required. alloy UNS No. C95520 are given in Table 5. Actual practice
4.2.1 Chemical analysis of residual elements (6.3), may vary by manufacturer.
4.2.2 Pressure test or soundness requirements (Specification 5.3 Separately cast test bar coupons representing castings
B 824), made in Copper Alloy UNS Nos. C94700HT, C95300HT,
4.2.3 Approval of weld repair and records of repair (Section C95400HT, C95410HT, and C95500HT shall be heat treated
9), with the castings.
4.2.4 Certification (Specification B 824),
6. Chemical Composition
4.2.5 Foundry test report (Specification B 824),
6.1 The castings shall conform to the requirements for
4.2.6 Witness inspection (Specification B 824),
major elements shown in Table 2.
4.2.7 Product marking (Specification B 824),
6.2 These specification limits do not preclude the presence
4.2.8 Castings for seawater service (5.1).
of other elements. Limits may be established and analysis
5. Materials and Manufacture
required for unnamed elements agreed upon between the
5.1 For better corrosion resistance in sea water applications, manufacturer or supplier and the purchaser. Copper or zinc
castings in Copper Alloy UNS No. C95800 shall be given a may be given as remainder and may be taken as the difference
temper anneal heat treatment at 1250 6 50°F (675 6 10°C) for between the sum of all elements analyzed and 100 %. When all
6-h minimum. Cooling shall be by the fastest means possible named elements in Table 2 are analyzed, their sum shall be as
that will not cause excessive distortion or cracking. specified in Table 3.
B 763
TABLE 2 Chemical Requirements
Composition, % max Except as Indicated
Major Elements Residual Elements
Copper
Alloy
Nickel Nickel
Alu- Manga- Sili- Bis- Anti- Phos- Alu- Manga- Sili-
UNS
Copper Tin Lead Zinc Iron incl Iron incl Sulfur Lead
minum nese con muth mony phorus minum nese con
No.
Cobalt Cobalt
C83450 87.0–89.0 2.0–3.5 1.5–3.0 5.5–7.5 . . . 0.75–2.0 . . . . . . . . . . . . 0.30 0.25 . . . 0.08 0.05 0.005 . . . 0.005 . . .
A
C83800 82.0–83.8 3.3–4.2 5.0–7.0 5.0–8.0 . . . 1.0 . . . . . . . . . . . . 0.30 0.25 . . . 0.08 0.03 0.005 . . . 0.005 . . .
A
C84400 78.0–82.0 2.3–3.5 6.0–8.0 7.0–10.0 . . . 1.0 . . . . . . . . . . . . 0.40 0.25 . . . 0.08 0.02 0.005 . . . 0.005 . . .
A
C84800 75.0–77.0 2.0–3.0 5.5–7.0 13.0–17.0 . . . 1.0 . . . . . . . . . . . . 0.40 0.25 . . . 0.08 0.02 0.005 . . . 0.005 . . .
C85200 70.0–74.0 0.7–2.0 1.5–3.8 20.0–27.0 . . . . . . . . . . . . . . . . . . 0.6 0.20 1.0 0.05 0.02 0.005 . . . 0.05 . . .
C85400 65.0–70.0 0.50–1.5 1.5–3.8 24.0–32.0 . . . . . . . . . . . . . . . . . . 0.7 . . . 1.0 . . . . . . 0.35 . . . 0.05 . . .
C85700 58.0–64.0 0.50–1.5 0.8–1.5 32.0–40.0 . . . . . . . . . . . . . . . . . . 0.7 . . . 1.0 . . . . . . 0.55 . . . 0.05 . . .
C86200 60.0–66.0 0.20 0.20 22.0–28.0 2.0–4.0 . . . 3.0–4.9 2.5–5.0 . . . . . . . . . . . . 1.0 . . . . . . . . . . . . . . . . . .
C86300 60.0–66.0 0.20 0.20 22.0–28.0 2.0–4.0 . . . 5.0–7.5 2.5–5.0 . . . . . . . . . . . . 1.0 . . . . . . . . . . . . . . . . . .
C86400 56.0–62.0 0.50–1.5 0.50–1.5 34.0–42.0 0.40–2.0 . . . 0.50–1.5 0.10–1.0 . . . . . . . . . . . . 1.0 . . . . . . . . . . . . . . . . . .
C86500 55.0–60.0 1.0 0.40 36.0–42.0 0.40–2.0 . . . 0.50–1.5 0.10–1.5 . . . . . . . . . . . . 1.0 . . . . . . . . . . . . . . . . . .
C86700 55.0–60.0 1.5 0.50–1.5 30.0–38.0 1.0–3.0 . . . 1.0–3.0 1.0–3.5 . . . . . . . . . . . . 1.0 . . . . . . . . . . . . . . . . . .
C87300 94.0 min . . . 0.20 0.25 . . . . . . . . . 0.8–1.5 3.5–5.0 . . . 0.20 . . . . . . . . . . . . . . . . . . . . . . . .
C87400 79.0 min . . . 1.0 12.0–16.0 . . . . . . . . . . . . 2.5–4.0 . . . . . . . . . . . . . . . . . . 0.80 . . . . . . . . .
C87500 79.0 min . . . 0.50 12.0–16.0 . . . . . . . . . . . . 3.0–5.0 . . . . . . . . . . . . . . . . . . 0.50 . . . . . . . . .
C87600 88.0 min . . . 0.50 4.0–7.0 . . . . . . . . . . . . 3.5–5.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C87610 90.0 min . . . 0.20 3.0–5.0 0.20 . . . . . . . . . 3.0–5.0 . . . . . . . . . . . . . . . . . . . . . 0.25 . . . . . .
A
C89844 83.0–86.0 3.0–5.0 . . . 7.0–10.0 . . . 1.0 . . . . . . . . . 2.0–4.0 0.30 0.25 . . . 0.08 0.05 0.005 . . . 0.005 0.2
A
C90300 86.0–89.0 7.5–9.0 0.30 3.0–5.0 . . . 1.0 . . . . . . . . . . . . 0.20 0.20 . . . 0.05 0.05 0.005 . . . 0.005 . . .
A
C90500 86.0–89.0 9.0–11.0 0.30 1.0–3.0 . . . 1.0 . . . . . . . . . . . . 0.20 0.20 . . . 0.05 0.05 0.005 . . . 0.005 . . .
A
C92300 85.0–89.0 7.5–9.0 0.30–1.0 2.5–5.0 . . . 1.0 . . . . . . . . . . . . 0.25 0.25 . . . 0.05 0.05 0.005 . . . 0.005 . . .
A
C92600 86.0–88.5 9.3–10.5 0.8–1.5 1.3–2.5 . . . 0.7 . . . . . . . . . . . . 0.20 0.25 . . . 0.05 0.03 0.005 . . . 0.005 . . .
A
C93200 81.0–85.0 6.3–7.5 6.0–8.0 2.0–4.0 . . . 1.0 . . . . . . . . . . . . 0.20 0.35 . . . 0.08 0.15 0.005 . . . 0.005 . . .
A
C93500 83.0–86.0 4.3–6.0 8.0–10.0 2.0 . . . 1.0 . . . . . . . . . . . . 0.20 0.30 . . . 0.08 0.05 0.005 . . . 0.005 . . .
A
C93700 78.0–82.0 9.0–11.0 8.0–11.0 0.8 . . . 1.0 . . . . . . . . . . . . 0.15 0.50 . . . 0.08 0.15 0.005 . . . 0.005 . . .
A
C93800 75.0–79.0 6.3–7.5 13.0–16.0 0.8 . . . 1.0 . . . . . . . . . . . . 0.15 0.80 . . . 0.08 0.05 0.005 . . . 0.005 . . .
A
C94300 67.0–72.0 4.5–6.0 23.0–27.0 0.8 . . . 1.0 . . . . . . . . . . . . 0.15 0.80 . . . 0.08 0.05 0.005 . . . 0.005 . . .
B
C94700 85.0–90.0 4.5–6.0 0.10 1.0–2.5 . . . 4.5–6.0 . . . . . . . . . . . . 0.25 0.15 . . . 0.05 0.05 0.005 0.20 0.005 . . .
C94800 84.0–89.0 4.5–6.0 0.30–1.0 1.0–2.5 . . . 4.5–6.0 . . . . . . . . . . . . 0.25 0.15 . . . 0.05 0.05 0.005 0.20 0.005 . . .
C94900 79.0–81.0 4.0–6.0 4.0–6.0 4.0–6.0 . . . 4.0–6.0 . . . . . . . . . . . . 0.30 0.25 . . . 0.08 0.05 0.005 0.10 0.005 . . .
C95200 86.0 min . . . . . . . . . 2.5–4.0 . . . 8.5–9.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C95300 86.0 min . . . . . . . . . 0.80–1.5 . . . 9.0–11.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C95400 83.0 min . . . . . . . . . 3.0–5.0 1.5 10.0–11.5 0.50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C95410 83.0 min . . . . . . . . . 3.0–5.0 1.5–2.5 10.0–11.5 0.50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C95500 78.0 min . . . . . . . . . 3.0–5.0 3.0–5.5 10.0–11.5 3.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C95600 88.0 min . . . . . . . . . . . . 0.25 6.0–8.0 . . . 1.8–3.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C C
C95800 79.0 min . . . 0.03 . . . 3.5–4.5 4.0–5.0 8.5–9.5 0.80–1.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.10 . . .
C97300 53.0–58.0 1.5–3.0 8.0–11.0 17.0–25.0 1.5 11.0–14.0 . . . . . . . . . . . . . . . 0.35 . . . 0.08 0.05 0.005 0.50 0.15 . . .
C97600 63.0–67.0 3.5–4.5 3.0–5.0 3.0–9.0 1.5 19
...