ASTM B952/B952M : 13

Standard Specification for Zinc Alloys in Ingot Form for Spin Casting

Standard Details

1.1 This 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:

TABLE 1 Chemical and North American Color Code Requirements

	Alloy SC-A	Alloy SC-B	Alloy SC-C	ZA-73	Alloy SC-D	Alloy SC-E	Alloy SC-F
UNS	Z35550	Z35551	Z35534	Z56500	Z35547	Z35548	Z35552
Color Code^A
Element^B
Aluminum	3.9–4.3	3.9–4.3	3.4–4.6	7.7–8.0	3.2–3.8	3.2-3.8	3.25-3.75
Magnesium	0.1–0.2	0.4–0.6	0.4–0.43	0.02–0.03	0.15-0.30	0.45-0.75	0.45-4.75
Copper	2.6–2.9	2.7–3.3	1.3–1.4	3.0–3.3	1.2-1.8	2.5-3.25	4.25-4.75
Iron, max	0.035	0.035	0.10	0.075	0.035	0.075	0.035
Lead, max	0.004	0.004	0.015	0.005	0.004	0.005	0.004
Cadmium, max	0.0030	0.0030	0.005	0.003	0.003	0.003	0.003
Tin, max	0.0015	0.0015	0.005	0.002	0.002	0.003	0.002
Nickel, max	...	...	0.02	...	. . .	0.02	. . .
Zinc	Remainder	Remainder	Remainder	Remainder	Remainder	Remainder	Remainder

^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.

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

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

1.3 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.

1.4 This 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.

General Information

Status : Historical

Standard Type: Main

Document No: ASTM B952/B952M : 13

Document Year: 2013

Pages: 3

Section Volume:
02.04 Volume 02.04 Nonferrous Metals - Nickel, Titanium, Lead, Tin, Zinc, Zirconium, Precious, Reactive, Refractory Metals and Alloys: Materials for Thermostats, Electrical Heating and Resistance Contact, and Connectors