Are the mechanical test specimens taken from the casting itself?

No, test bars are typically cast separately from the same melt to represent the metal quality, unless specifically agreed otherwise.

Does this standard apply to aluminium die castings?

No, this specification is strictly for sand castings.

What method is recommended for tensile testing?

Tensile testing should be performed in accordance with IS 1608.

IS 2109

: 2002

Aluminium alloy sand castings for general engineering purposes - Specification

CurrentSpecializedSpecificationMaterials Science · Aluminium and Non-Ferrous Metals

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This standard specifies the requirements for aluminium alloy sand castings used for general engineering purposes. It covers chemical composition, mechanical properties, heat treatment conditions, and methods of sampling and testing to ensure casting quality.

Covers the requirements for aluminium alloy sand castings intended for general engineering purposes.

Quick Reference Values

Typical tensile strength range100 - 300 MPa (depending on alloy)

Typical elongation range1.0 - 7.0 % (depending on alloy)

Practical Notes

Sand castings are prone to porosity; specify supplementary NDT (like radiography) if the casting is for a pressurized or critical application.

Always specify the condition (temper designation) required, as heat treatment drastically alters the mechanical properties of aluminium castings.