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Castaduct-18

Castaduct-18 / AlMg4Zn3Fe2 (RHEINFELDEN ALLOYS) | High-pressure die casting

Manufacturer-reported values. Do not use as certified design allowables. View sources ↗

TemperWallYield MPaTensile MPaElong. %
T12–10 mm150–190280–3207–10

T1 condition: Original-developer T1 range for HPDC with 2–10 mm wall thickness. The handbook discusses Zn-enabled natural aging and near-stability after 20 days, but does not state that every specimen in this table was tested at day 20. The range is not a mean or paired specimen data; Brinell 85–95 HBW is separately recorded.

Chemical composition

Only reviewed weight-percent bounds are listed. A blank bound means only the other threshold was reported.

The 2018 original-developer handbook p. 39 composition table is for ingots in percent by mass. Be and Cr are named under “others” without numerical limits. The p. 39 T1 mechanical row has 2–10 mm wall thickness; the source does not give an exact natural-aging duration for those table specimens.

Element / source labelMinimum wt%Upper wt%
Si—0.2
Fe1.41.7
Cu—0.05
Mn—0.15
Mg4.04.5
Zn3.33.6
Ti—0.2

Physical and thermal properties

PropertyReported valueUnitCondition
density2.73kg/dm³manufacturer physical-data table; temperature and temper not separately reported
thermal expansion2510⁻⁶/Kmanufacturer physical-data table; temperature interval not stated
thermal conductivity1.2W/(K·cm)manufacturer physical-data table explicitly labels T1; temperature not stated
electrical conductivity22–27.5%IACSmanufacturer physical-data table; temperature and temper not separately reported
linear shrinkage0.5–0.9%manufacturer physical-data table for HPDC; measurement condition not separately reported

Processing properties

Source-reported comparisons, not certified limits.

PropertyReported value
natural agingreaches an almost stable state after 20 days.
castabilityEasy castability in the HPDC process
weldabilityWell weldable

Additional property data

Source-reported values, specification intervals, minimums and strict bounds; an average is labeled only when the source reports it. Compare conditions before use.

PropertyValueCondition
brinell hardness85–95 HBWT1; HPDC structural cast with wall thickness 2–10 mm; source-reported table range

Evidence

Primary Aluminum HPDC Alloys for Structural Casts, 2018 — Castaduct-18 — RHEINFELDEN ALLOYS GmbH & Co. KG

Show the exact source location for each value

Official issuer page