ASTM International - ASTM B763-08a

Standard Specification for Copper Alloy Sand Castings for Valve Applications

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Organization:	ASTM International
Publication Date:	1 October 2008
Status:	inactive
Page Count:	6
ICS Code (Copper products):	77.150.30

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: B 62

C92200: B 61

C96200: B 369

C96400: B 369

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 Units-The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

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	2½	2	6½	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	76-2½-6½-15, or semi-red brass	76	2½	6½	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	½	½	. . .	. . .
	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	. . .	½	14	. . .	. . .	. . .	. . .	3½	. . .
	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 semi-red brass	C89844	bismuth brass	84½	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	. . .

abstract:

This specification establishes requirements for copper alloy sand castings for valve applications. The castings shall conform to the chemical composition requirements specified. Mechanical... View More