1.1This specification covers zinc alloys in ingot form for remelting for the manufacture of Spin Castings as specified and designated, as shown in Table 1. Seven alloy compositions are specified, designated as follows:

(A)Per Practice B908.

(B)For purposes of acceptance and rejection, the observed value or calculated value obtained from analysis should be rounded to the nearest unit in the last right-hand place of figures, used in expressing the specific limit in accordance with the rounding procedure prescribed in Practice E29.

(C)ZA-73 is also often used as a pressure die casting alloy.

Common	Traditional	UNS

Spin Casting Alloy SC-A	...	Z35550
Spin Casting Alloy SC-B	...	Z35551
Spin Casting Alloy SC-C	...	Z35534
Spin Casting Alloy SC-D	HJ10	Z35547
Spin Casting Alloy SC-E	HJ20	Z35548
Spin Casting Alloy SC-F	HJ40	Z35552
ZA-73	...	Z36500

1.2Zinc alloys #2, #3, #5, and ZA-8 specified in Specification B240 are also used in the spin casting process.

1.3The 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.

1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.