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IS 636:1988 is the Indian Standard (BIS) for non-ferrous metals and alloy ingots for sand casting. IS 636 specifies non-ferrous alloy ingots for sand casting, covering aluminium, copper, and zinc alloys. It defines chemical composition requirements for each grade. Foundries purchasing casting ingots reference this standard for incoming material quality.
Specification for non-ferrous metal and alloy ingots (aluminium, copper, zinc, and their alloys) for sand casting, covering grades, chemical composition, and sampling.
Overview
Status
Current
Usage level
Specialized
Domain
Materials Science — Aluminium and Non-Ferrous Metals
4600 grade (equivalent to LM6/A413) with 10-13% silicon is the most commonly used for general-purpose sand castings due to excellent fluidity and castability.