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ASTM B763 - 13


ASTM B763 - 13 Standard Specification for Copper Alloy Sand Castings for Valve Applications


Active Standard ASTM B763 Developed by Subcommittee: B05.05 |Book of Standards Volume: 02.01

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ASTM B763

Abstract

This specification establishes requirements for copper alloy sand castings for valve applications. The castings shall conform to the chemical composition requirements specified. Mechanical properties shall be determined from separately cast test bars, and shall conform with the requirements. Brinell hardness readings shall be taken in the grip end of the tension test bar and shall be made in accordance with the specified requirements.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. 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 1.2

TABLE 1 Nominal Compositions

Classification

Copper Alloy UNS No.

Commercial Designation

Copper

Tin

Lead

Zinc

Nickel

Iron

Alumi-
 num

Man-
ganese

Sili-
 con

Bismuth

Selenium

Leaded red brass

C83450

 

88

21/2 

2

61/2 

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

. . .

. . .

. . .

. . .

. . .

. . .

. . .

 

C84800

76-21/2-61/2-15, or semi-red brass

76

21/2 

61/2 

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

. . .

. . .

. . .

 

C86400

leaded manganese bronze

58

1

1

38

. . .

1

1/2 

1/2 

. . .

. . .

. . .

 

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

. . .

. . .

 brass

C87400

silicon brass

82

. . .

1/2 

14

. . .

. . .

. . .

. . .

31/2 

. . .

. . .

 

C87500

silicon brass

82

. . .

. . .

14

. . .

. . .

. . .

. . .

4

. . .

. . .

 

C87600

silicon bronze

89

. . .

. . .

6

. . .

. . .

. . .

. . .

5

. . .

. . .

 

C87610

silicon bronze

92

. . .

. . .

4

. . .

. . .

. . .

. . .

4

. . .

. . .

 

C89530

Bismuth-Selenium

86.5

4.7

. . .

8.0

. . .

. . .

. . .

. . .

. . .

1.5

.20

 

C89535

Bismuth

86.5

3.0

. . .

7.0

.65

. . .

. . .

. . .

. . .

1.4

. . .

Bismuth brass

C89720A

 

67.5

1

. . .

29.8

. . .

. . .

0.5

. . .

0.5

0.7

. . .

Bismuth semi-red brass

C89844

bismuth brass

841/2 

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

. . .

B61 Specification for Steam or Valve Bronze Castings

B62 Specification for Composition Bronze or Ounce Metal Castings

B208 Practice for Preparing Tension Test Specimens for Copper Alloy Sand, Permanent Mold, Centrifugal, and Continuous Castings

B369 Specification for Copper-Nickel Alloy Castings

B824 Specification for General Requirements for Copper Alloy Castings

E10 Test Method for Brinell Hardness of Metallic Materials

E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)


Keywords

copper alloy castings; copper-base alloy castings; valve castings;


ICS Code

ICS Number Code 77.150.30 (Copper products)


DOI: 10.1520/B0763-13

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