ASTM B491 / B491M Alloy 3003

Chemical Properties

Silicon	Iron	Copper	Chromium	Titanium	Other ElementsD		Aluminum
					Each	TotalE
0.6	0.7	0.05–0.20	1.0–1.5	0.10	0.05	0.15	remainder

Note:
D 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.
E Other Elements—Total shall be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.
F The aluminum content shall be calculated by subtracting from 100.00 % the sum of all metallic elements present in amounts of 0.010 % or more each, rounded to the second decimal before determining the sum.

Mechanical Properties

Temper	Specified Wall Thickness, in.	Tensile Strength, ksi		Yield Strength (0.2 % Offset) min, ksi	Elongation in 2 in. min, %
		min	max
H112	0.032–0.050	14.0	20.0D	5.0	25

Note D: Maximum tensile strength for coils. No maximum limit for extruded lengths.

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