A356.2 A13562 A356 SC70B - ASTM B179-2018

Grade	A356.2
USA UNS	A13562
Old Grade
Corresponding Standard	ASTM B179-2018 Standard Specification for Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes
Classification	Aluminum and Aluminum Alloys

A356.2 Chemical Element Composition Content (%)

Component	Fe	Si	Mn	Cu	Ti	Zn	Mg	Other Individual	Other Total	More
Minimum Value	-	6.5	-	-	-	-	0.3	-	-	Al:Remainder
Maximum Value	0.12	7.5	0.05	0.1	0.2	0.05	0.45	0.05	0.15	Al:Remainder

"Other individual elements or other totals": The chemical composition includes elements not specified in the table. Analysis should only be conducted if these elements are suspected to be present, or if routine analysis suggests that their content may exceed the prescribed limits.

①Alloy designations are in accordance with ASTM B275, ANSI H35.1, and ASTM E527.

ⓐ 3xx.x and 4xx.x aluminum alloy ingot structure improvement elements:
letter N=Na, Na 0.003~0.08%; Letter S=Sr, Sr 0.005~0.08%; Letter C=Ca, Ca 0.005~0.08%; Letter P=P, P 0.06% max.
—Letter suffixes separated by hyphens after the registered ingot grade (e.g. A356.1-S)
— In cases where more than one modifier is Intentionally added, only the modifier of greater concentration shall be identified by suffix letter affixed to the registered alloy designation.
—When a foundry alloy is sold with a suffix added to its alloy designation, the modifying element’s concentration is not to be included in “Others, Each” or “Others, Total”
—It is not intended that these structure modifier identifiers be treated as new alloy registration, nor should these designations be listed in the Registration Record.

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