Wholesale aluminium-titanium-boron

Buyers must prioritize the chemical composition ratio, typically AlTi5B1 (5% Titanium, 1% Boron) or AlTi3B1. The microstructure is critical; ensure the TiAl3 particles are fine and blocky (ideally <20μm) and TiB2 particles are well-dispersed to prevent agglomeration, which ensures effective grain refinement in aluminum casting.

Request a Grain Refinement Test Report (such as the KBI test or Alcoa test). A high-quality AlTiB alloy should be able to refine the grain size of commercial pure aluminum to under 200μm within 2 to 10 minutes of addition. Ask the supplier for SEM (Scanning Electron Microscope) images to verify the distribution of borides.

AlTiB is generally supplied in coil rods (9.5mm diameter), waffle ingots, or cut wire. Coil rods are preferred for continuous casting and rolling lines because they allow for automated feeding into the launder, ensuring precise dosage and consistent quality in large-scale production.

The supplier should strictly adhere to ISO 9001 for quality management. For high-end applications like aerospace or automotive foils, ensure the product meets ASTM or EN standards. Verify that the supplier provides a Certificate of Analysis (COA) for every heat number to track impurity levels (like Fe, Si, and V), which must be kept to a minimum.

The main risks include moisture contamination and oxidation. If the alloy is damp, it can introduce hydrogen into the aluminum melt, causing porosity defects. Ensure the supplier uses vacuum-sealed packaging or heavy-duty moisture-proof shrink wrap on pallets. Additionally, verify the HS Code (typically 760120) to avoid incorrect tariff classifications.

Pricing is usually formula-based: LME Aluminum Price + Processing Fee. Negotiate the processing fee based on volume. For large-scale buyers, seek long-term supply agreements to hedge against market volatility. Always use Made-in-China.com's Secured Trading services to ensure funds are only released after the Third-Party Inspection (TPI) confirms the chemical composition.

AlTiB is heavy and dense; ensure the sea freight packaging is reinforced to prevent pallet collapse. Store the material in a dry, ventilated warehouse. For shipping to countries with strict environmental laws, ensure the supplier provides a Material Safety Data Sheet (MSDS) and confirms the product is non-hazardous for standard maritime transport.