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  • ASTM
    B618/B618M-11a Standard Specification for Aluminum-Alloy Investment Castings
    Edition: 2011
    $113.57
    Unlimited Users per year

Description of ASTM-B618 2011

ASTM B618/B618M-11a

Historical Standard: Standard Specification for Aluminum-Alloy Investment Castings




ASTM B618/B618M

Scope

1.1 This specification covers aluminum-alloy investment castings designated as shown in Table 1.

1.2 This specification is for aluminum-alloy investment castings used in general purpose applications. It may not address the mechanical properties integrity testing and verification required for highly loaded or safety critical applications.

1.3 Alloy 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.

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

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

1.6 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 nonconformance with the standard.

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

TABLE 1 Chemical Composition Requirements

Note 1—When single units are shown, these indicate the maximum amounts permitted.

Note 2—Analysis shall be made for the elements for which limits are shown in this table.

Note 3—The following applies to all specified limits in this table: For purposes of acceptance and rejection, an observed value or a 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 (Practice E29).

Alloy Composition, %
ANSIA UNS Silicon Iron Copper Man-
ganese 		Mag-
nesium 		Chro-
mium 		Nickel Zinc Titan-
ium 		Tin OtherB
Elements 		Aluminum
Each TotalC
201.0 A02010 0.10 0.15 4.0–5.2 0.20–0.50 0.15–0.55 ... ... ... 0.15–0.35 ... D 0.05 0.10 remainder
204.0 A02040 0.20 0.35 4.2–5.0 0.10 0.15–0.35 ... 0.05 0.10 0.15–0.30 0.05 0.05 0.15 remainder
242.0 A02420 0.7 1.0 3.5–4.5 0.35 1.2–1.8 0.25 1.7–2.3 0.35 0.25 ... 0.05 0.15 remainder
295.0 A02950 0.7–1.5 1.0 4.0–5.0 0.35 0.03 ... ... 0.35 0.25 ... 0.05 0.15 remainder
319.0 A03190 5.5–6.5 1.0 3.0–4.0 0.50 0.10 ... 0.35 1.0 0.25 ... ... 0.50 remainder
328.0 A03280 7.5–8.5 1.0 1.0–2.0 0.20–0.6 0.20–0.6 0.35 0.25 1.5 0.25 ... ... 0.50 remainder
355.0 A03550 4.5–5.5 0.6E 1.0–1.5 0.50E 0.40–0.6 0.25 ... 0.35 0.25 ... 0.05 0.15 remainder
C355.0 A33550 4.5–5.5 0.20 1.0–1.5 0.10 0.40–0.6 ... ... 0.10 0.20 ... 0.05 0.15 remainder
356.0 A03560 6.5–7.5 0.6E 0.25 0.35E 0.20–0.45 ... ... 0.35 0.25 ... 0.05 0.15 remainder
A356.0 A13560 6.5–7.6 0.20 0.20 0.10 0.25–0.45 ... ... 0.10 0.20 ... 0.05 0.15 remainder
443.0 A04430 4.5–6.0 0.8 0.6 0.50 0.05 0.25 ... 0.50 0.25 ... ... 0.35 remainder
B443.0 A24430 4.5–6.0 0.8 0.15 0.35 0.05 ... ... 0.35 0.25 ... 0.05 0.15 remainder
514.0 A05140 0.35 0.50 0.15 0.35 3.5–4.5 ... ... 0.15 0.25 ... 0.05 0.15 remainder
520.0 A05200 0.25 0.30 0.25 0.15 9.5–10.6 ... ... 0.15 0.25 ... 0.05 0.15 remainder
535.0 A05350 0.15 0.15 0.05 0.10–0.25 6.2–7.5 ... ... ... 0.10–0.25 ... F 0.05 0.15 remainder
705.0 A07050 0.20 0.8 0.20 0.40–0.6 1.4–1.8 0.20–0.40 ... 2.7–3.3 0.25 ... 0.05 0.15 remainder
707.0 A07070 0.20 0.8 0.20 0.40–0.6 1.8–2.4 0.20–0.40 ... 4.0–4.5 0.25 ... 0.05 0.15 remainder
710.0G A07100 0.15 0.50 0.35–0.65 0.05 0.6–0.8 ... ... 6.0–7.0 0.25 ... 0.05 0.15 remainder
712.0G A07120 0.30 0.50 0.25 0.10 0.50–0.65 0.40–0.6 ... 5.0–6.5 0.15–0.25 ... 0.05 0.20 remainder
713.0 A07130 0.25 1.1 0.40–1.0 0.6 0.20–0.50 0.35 0.15 7.0–8.0 0.25 ... 0.10 0.25 remainder
771.0 A07710 0.15 0.15 0.10 0.10 0.8–1.0 0.06–0.20 ... 6.5–7.5 0.10–0.20 ... 0.05 0.15 remainder
850.0 A08500 0.7 0.7 0.7–1.3 0.10 0.10 ... 0.7–1.3 ... 0.20 5.5–7.0 ... 0.30 remainder
851.0G A08510 2.0–3.0 0.7 0.7–1.3 0.10 0.10 ... 0.3–0.7 ... 0.20 5.5–7.0 ... 0.30 remainder
852.0G A08520 0.40 0.7 1.7–2.3 0.10 0.6–0.9 ... 0.9–1.5 ... 0.20 5.5–7.0 ... 0.30 remainder

A ASTM alloy designations are in Practice B275.

B “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 specification. However, such analysis is not required and may not cover all metallic “Others” elements. Should any analysis by the producer or the purchaser establish that an “Others” element exceeds the limit of “Each” or that the aggregate of several “ Others” elements exceeds the limit of “Total,” the material shall be considered nonconforming.

C Other ElementsTotal shall be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.

D Contains silver 0.40–1.0 %.

E If iron exceeds 0.45 %, manganese content shall not be less than one half of the iron content.

F Contains beryllium 0.003–0.007 %, boron 0.002 % max.

G 710.0 formerly A712.0, 712.0 formerly D712.0, 851.0 formerly A850.0, 852.0 formerly B850.0.


Keywords

aluminum; investment casting ; UNS A02040 (Aluminum foundry alloy, casting); UNS A02080 (Aluminum foundry alloy, casting); UNS A02220 (Aluminum foundry alloy, casting); UNS A02420 (Aluminum foundry alloy, casting); UNS A02950 (Aluminum foundry alloy, casting); UNS A03190 (Aluminum foundry alloy, casting); UNS A03280 (Aluminum foundry alloy, castings); UNS A03550 (Aluminum foundry alloy, casting); UNS A03560 (Aluminum foundry alloy, casting); UNS A04430 (Aluminum foundry alloy, casting); UNS A05140 (Aluminum foundry alloy, casting); UNS A05200 (Aluminum foundry alloy, casting); UNS A05350 (Aluminum foundry alloy, casting); UNS A07050 (Aluminum foundry alloy, casting); UNS A07070 (Aluminum foundry alloy, casting); UNS A07130 (Aluminum foundry alloy, casting); UNS A07710 (Aluminum foundry alloy, casting); UNS A08500 (Aluminum foundry alloy, casting); UNS A13560 (Aluminum foundry alloy, casting); UNS A14430 (Aluminum foundry alloy, casting); UNS A17120 (Aluminum foundry alloy, casting); UNS A18500 (Aluminum foundry alloy, casting); UNS A24430 (Aluminum foundry alloy, casting); UNS A25140 (Aluminum foundry alloy, casting); UNS A28500 (Aluminum foundry alloy, casting); UNS A33550 (Aluminum foundry alloy, casting); UNS A47120 (Aluminum foundry alloy, casting); Aluminum alloys (castings)--specifications; Investment castings--specifications; UNS A02010 (Aluminum foundry alloy, casting)


ICS Code

ICS Number Code 77.150.10 (Aluminium products)


DOI: 10.1520/B0618_B0618M-11A

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