ASTM B85/B85M-13

Standard Specification for Aluminum-Alloy Die Castings

ASTM International , 10/15/2013

Publisher: ASTM

File Format: PDF

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Description

Standard By:ASTM International , 10/15/2013

Published:10/15/2013

Pages:9

File Size:1 file , 130 KB

Language:English

Note:This product is unavailable in Russia, Ukraine, Belarus

1.1This specification covers aluminum-alloy die castings of all compositions. Thirteen of the most commonly die cast alloy compositions are specified, designated as shown in Table 1.

TABLE 1 Chemical Requirements^A^,^B^,^C

Designation^D													Others^E
AA No. (ANSI)	(old) ASTM	UNS	Si	Fe	Cu	Mn	Mg	Cr	Ni	Zn	Ti	Sn	Each	Total^F	Aluminum
360.0	SG100B	A03600	9.00-10.00	2.00	0.60	0.35	0.4-0.60	. . .	0.50	0.50	. . .	0.15	. . .	0.25	Remainder
A360.0	SG100A	A13600	9.00-10.00	1.30	0.60	0.35	0.40-0.60	. . .	0.50	0.50	. . .	0.15	. . .	0.25	Remainder
380.0	SC84B	A03800	7.50-9.50	2.00	3.00-4.00	0.50	0.10	. . .	0.50	3.00	. . .	0.35	. . .	0.50	Remainder
A380.0^G	SC84C	A13800	7.50-9.50	1.30	3.00-4.00	0.50	0.10	. . .	0.50	3.00	. . .	0.35	. . .	0.50	Remainder
383.0^G	SC102A	A03830	9.50-11.50	1.30	2.00-3.00	0.50	0.10	. . .	0.30	3.00	. . .	0.15		0.50	Remainder
384.0^G	SC114A	A03840	10.50-12.00	1.30	3.00-4.50	0.50	0.10	. . .	0.50	3.00	. . .	0.35	. . .	0.50	Remainder
390.0	SC174A	A03900	16.00-18.00	1.30	4.00-5.00	0.10	0.45-0.65	. . .	. . .	0.10	0.20	. . .	0.10	0.20	Remainder
B390.0	SC174B	A23900	16.00-18.00	1.30	4.00-5.00	0.50	0.45-0.65	. . .	0.10	1.50	0.20†	. . .	0.10	0.20	Remainder
392.0	S19	A03920	18.00-20.00	1.50	0.40-0.80	0.20-0.60	0.80-1.20	. . .	0.50	0.50	0.20	0.30	0.15	0.50	Remainder
413.0	S12B	A04130	11.00-13.00	2.00	1.00	0.35	0.10	. . .	0.50	0.50	. . .	0.15	. . .	0.25	Remainder
A413.0	S12A	A14130	11.00-13.00	1.30	1.00	0.35	0.10	. . .	0.50	0.50	. . .	0.15	. . .	0.25	Remainder
C443.0	S5C	A34430	4.50-6.00	2.00	0.60	0.35	0.10	. . .	0.50	0.50	. . .	0.15	. . .	0.25	Remainder
518.0	G8A	A05180	0.35	1.80	0.25	0.35	7.50-8.50	. . .	0.15	0.15	. . .	0.15	. . .	0.25	Remainder
† Corrected editorially in August 2013.

^A Analysis shall ordinarily be made only for the elements mentioned in this table. If, however, the presence of other elements is suspected, or indicated in the course of routine analysis, further analysis shall be made to determine that the total of these other elements are not present in excess of specified limits.

^B For purposes of acceptance and rejection, the observed value or calculated value obtained from analysis should be rounded off to the nearest unit in the last right-hand place of figures, used in expressing the specified limit, in accordance with the rounding procedure prescribed in Section 3 of Practice E29.

^C Limits are in percent maximum unless shown otherwise.

^D Alloys 360.0, 380.0, 413.0, C443.0 and 518.0 are suitable for the production of die casting by either the hot-chamber or the cold-chamber process. Die castings of alloys A360.0, A380.0, 383.0, 384.0 and A413.0 may be made only in cold-chamber machines. ASTM designations were established in accordance with Practice B275. ANSI designations were established in accordance with ANSI H35.1/H35.1 (M). UNS designations were established in accordance with Practice E527.

^E ”Others” includes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may analyze samples for trace elements not specified in the registration or specification. However, such analysis is not required and may not cover all metallic “other” elements. Should any analysis by the producer or the purchaser establish that the aggregate of several “others” elements exceeds the limit of the “Total” the material shall be considered non-conforming.

^F The sum of those “others” metallic elements 0.010 percent or more, each expressed to the second decimal before determining the sum.

^G With respect to mechanical properties, alloys A380.0, 383.0 and 384.0 are substantially interchangeable.

1.2This specification is not intended for aluminum-alloy die castings used in aerospace applications.

1.3Alloy and temper designations are in accordance with ANSI H35.1/H35.1(M). The equivalent unified numbering system alloy designations are in accordance with Practice E527.

1.4Unless the order specifies the “M” specification designation, the material shall be furnished to the inch-pound units.

1.5For acceptance criteria for inclusion of new aluminum and aluminum alloys and their properties in this specification, see Annex A1 and Annex A2.

1.6Units-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.

1.7This 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 establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.