1.1This specification covers magnesium-alloy investment castings designated as shown in Table 1.
TABLE 1 Chemical Composition LimitsA Note 1—
Analysis shall regularly be made for the elements specifically mentioned in this table. If, however, the presence of other elements is suspected or indicated in amounts greater than the specified limits, further analysis shall be made to determine that these elements are not present in excess of the specified limits. Note 2—
The following applied 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. Alloy Number B | | Composition, percent | Others Each |
ASTM | UNS | | Iron | Magne- sium | | Alu- minum | Manga- nese | | Zinc | Zirconium | Rare Earths | Thorium | Copper | Nickel | Silicon | TotalC Other Impurities |
AM100A | M10100 | | ... | remainder | | 9.3–10.7 | 0.10–0.35 | | 0.30 | ... | ... | ... | 0.10 | 0.01 | 0.30 | 0.30 | ... |
AZ81A | M11810 | | ... | remainder | | 7.0–8.1 | 0.13–0.35 | | 0.40–1.0 | ... | ... | ... | 0.10 | 0.01 | 0.30 | 0.30 | ... |
AZ91C | M11914 | | ... | remainder | | 8.1–9.3 | 0.13–0.35 | | 0.40–1.0 | ... | ... | ... | 0.10 | 0.01 | 0.30 | 0.30 | ... |
AZ91E | M11919 | | 0.005D E | remainder | | 8.1–9.3 | 0.17–0.35 | | 0.40–1.0 | ... | ... | ... | 0.015 | 0.0010 | 0.20 | 0.30 | 0.01 |
AZ92A | M11920 | | ... | remainder | | 8.3–9.7 | 0–0.35 | | 1.6–2.4 | ... | ... | ... | 0.10 | 0.01 | 0.30 | 0.30 | ... |
EQ21A | M18330 | | ... | remainder | | ... | ... | | ... | 0.40–1.0 | 1.5–3.0F | ... | 0.05–0.10 | 0.01 | ... | 0.30 | ... |
EZ33A | M12330 | | ... | remainder | | ... | ... | | 2.0–3.1 | 0.50–1.0 | 2.5–4.0 | ... | 0.10 | 0.01 | ... | 0.30 | ... |
K1A | M18010 | | ... | remainder | | ... | ... | | ... | 0.40–1.0 | ... | ... | ... | ... | ... | 0.30 | ... |
QE22AG | M18220G | | ... | remainder | | ... | ... | | ... | 0.40–1.0 | 1.8–2.5F | ... | 0.10 | 0.01 | ... | 0.30 | ... |
ZE41A | M16410 | | ... | remainder | | ... | 0.15 | | 3.5–5.0 | 0.40–1.0 | 0.75–1.75 | ... | 0.10 | 0.01 | ... | 0.30 | ... |
ZK61A | M16610 | | ... | remainder | | ... | ... | | 5.5–6.5 | 0.6–1.0 | ... | ... | 0.10 | 0.01 | ... | 0.30 | ... |
1.2Alloy designations are in accordance with Practice E527; temper designations are in accordance with Practice B296.
1.3The values stated in inch-pound units are to be regarded as the standard. The SI values in parentheses are for information only.