Aluminum Boron Master Alloy

Aluminum Boron Master Alloy is a binary master alloy with aluminum (Al) as the matrix and boron (B) as the primary alloying element. Available in B3, B5, and B8 grades with boron contents of 3%, 5%, and 8% respectively. Supplied in two forms: waffle ingot and CCB — waffle ingots suit manual batch addition with standardized weight for easy measurement; CCB can be added online via automatic feeders on continuous casting-rolling lines or cut as needed for flexible batching. Feed rate is adjustable according to requirement; its core function is to decrease resistivity, improve conductivity, and refine grains (Decrease resistivity, grain refinement).

[Key Advantages]
· Three grades—B3 (3%), B5 (5%), and B8 (8%)—with clear boron content gradients for flexible selection based on target alloy boron content and conductivity requirements.
· Boron significantly reduces electrical resistivity and improves conductivity in aluminum alloys while providing grain refinement, improving microstructure and overall performance — a key functional element for electrical aluminum alloy performance enhancement.
· Introducing boron via master alloy form enables fast dissolution and uniform dispersion, effectively avoiding the dissolution difficulties and segregation issues of direct boron compound addition.
· Waffle ingot form suits manual batch addition; CCB form supports automated addition on continuous casting-rolling lines for continuous stable boron content control; both allow feed rate adjustment according to requirement.
· Uniform and stable composition; both forms meet batching needs of different production scales and process types.

[Product Uses]
· Core application: decrease resistivity, improve conductivity, grain refinement; feed rate according to requirement — mainly used in smelting batching of electrical aluminum alloys (1xxx high-conductivity series) and alloys requiring conductivity improvement through boron purification.
· In high-voltage transmission cable aluminum conductors, aluminum alloy wires, and conductive aluminum profiles, aluminum boron master alloy is added as needed in waffle ingot or CCB form; boron reacts with transition metal elements in aluminum to reduce resistivity and significantly improve conductivity.
· Suitable for aluminum alloy production requiring both conductivity and mechanical performance, using boron grain refinement to improve microstructure uniformity and overall performance indicators.
· In the recycled aluminum industry, when scrap aluminum has elevated Ti, V, Cr, and other transition metal elements causing increased resistivity, adding aluminum boron master alloy causes these elements to precipitate out, effectively purifying the melt and restoring aluminum alloy conductivity.