Material basis

Silicon lowers melting range, improves fluidity and can reduce thermal expansion. Some 4xxx alloys are used mainly as filler metals.

Applications

Welding wire, brazing sheet cladding, automotive components and specialist forged or wrought applications.

Common grades / designations

Common alloys include 4032 and filler alloys 4043/4047.

Engineering notes

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Selection and procurement checks

Confirm alloy, temper, product form, dimensions, applicable ASTM/EN/ISO/AA specification, mechanical properties, corrosion environment, joining route and mill certification before approval.

Element Folio engineering reference. Verify the latest governing specification and manufacturer data for final design or procurement.