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IS 291:2005 is the Indian Standard (BIS) for manganese bronze ingots and castings. IS 291 covers manganese bronze (high tensile brass) — a Cu-Zn alloy with Mn, Fe, Al additions for high strength. Used for marine propellers, heavy-duty bearings, gears, and valve stems where both strength and seawater corrosion resistance are needed.
Specification for manganese bronze (high tensile brass) ingots and castings covering grades, chemical composition, and mechanical properties.
Overview
Status
Current
Usage level
Specialized
Domain
Materials Science — Aluminium and Non-Ferrous Metals