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  • ASTM
    B763-13 Standard Specification for Copper Alloy Sand Castings for Valve Applications (Redline)
    Edition: 2013
    $62.90
    Unlimited Users per year

Description of ASTM-B763 2013

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




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

2 1 / 2

2

6 1 / 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

76-2 1 / 2 -6 1 / 2 -15, or semi-red brass

76

2 1 / 2

6 1 / 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

.?.?.

.?.?.

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