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Aluminum Titanium Boron is recognized as the best refining material for aluminum and aluminum alloy, which can prevent the formation of thick equiaxed crystal, columnar and feathered crystal, and improve the mechanical and physical properties of aluminum and aluminum alloy.
The mechanism of action of ALTIB is closely related to TiAl3 and TiB2. The size and activity of these two initial nucleus are important factors to determine quality. When ALTIB are added into the liquid melt, a large number of heterogeneous nucleation cores are released, which can be used as foreign nucleation during the solidification of the melt and affect the nucleation process of the crystallization, thus refining the alloy grains.
There are widely using types of ALTIB for adding ,such as Waffle ingots, Sticks, CCB(Cut casting bar)and online runner in launder. Online adding has the advantages of good effect, convenience, economy, flexible adjustment and easy automation.
Grain Refiners (DONGSHENG™) based on Aluminum Titanium Boron (Al‑Ti‑B) promote rapid, uniform grain formation in cast and wrought aluminum. The resulting fine, equiaxed structure helps limit hot cracking, supports sound feeding, and stabilizes downstream quality in casting and extrusion.
Grades: AlTi5B1 and AlTi3B1. Selection depends on alloy family, target grain size, and hold time. The 5/1 grade offers higher nucleant density; the 3/1 grade can broaden compatibility in sensitive melts.
Forms: Ingots and cut‑to‑length refiner rods designed for clean dissolution and precise addition. Fast‑melting options support short cycles and varied furnace conditions.
Uniform fine grains: Refines structure and reduces dendrite arm spacing for consistent dimensions and billet quality.
Lower hot tearing risk: Fine, equiaxed grains improve feeding and reduce defects in Al‑Si and Al‑Mg systems.
Stable properties: Supports strength, elongation, machinability, and uniform surface finish with reliable coating adhesion.
Predictable performance: Potent particles with controlled Ti/B ratios help minimize fade and maintain refinement across holds.
Billet DC casting (6xxx, 3xxx): Achieves stable extrusion behavior and consistent surface quality.
Foundry Al‑Si castings: Works alongside Sr modification to balance structure and improve yield.
Continuous casting and specialty alloys: Supports tight grain size control where dimensional stability and conductivity must be balanced.
When to add: Introduce after melt cleaning and temperature equalization. Use gentle agitation for even distribution without entrainment.
Dosing: Set by alloy chemistry, melt volume, and target grain size. Our team can provide dosing curves to meet process targets with limited fade.
Good practice: Stay within the recommended temperature window. Avoid long holds that can reduce particle activity. Use clean tools and controlled stirring to limit inclusions.
Compatibility: Coordinated with fluxing, degassing, and Sr modification to maintain melt cleanliness and avoid unwanted interactions.
Chemistry: Available as AlTi5B1 and AlTi3B1 with controlled impurity levels to protect nucleant efficacy and melt cleanliness across common alloy series.
Cleanliness and testing: Routine spectral checks and inclusion assessments help ensure batch‑to‑batch consistency.
Documentation: Each lot is traceable and supplied with certificates, performance records, and recommended practice notes for efficient integration.
Capacity and reliability: Four production bases, including a dedicated Al‑Ti‑B line rated at 30,000 t/year, support stable global supply.
Certified systems: IATF 16949, ISO 9001, ISO 14001, and ISO 45001 help ensure consistent quality and compliance.
R&D strength: Established in 1995 with 100+ patents. Specialized labs focus on nucleant chemistry and melt interaction for dependable results.
Logistics and support: Distribution centers and regional warehouses provide prompt delivery and on‑site assistance in nearly 40 countries, supported by partnerships with major aluminum groups.
How to choose between AlTi5B1 and AlTi3B1?
Base the choice on alloy family, target grain size, and hold time. The 5/1 grade provides higher particle density; the 3/1 grade can improve melt compatibility in some cases.
Can this refiner be used with Sr modifiers and degassing?
Yes. Add after melt cleaning and coordinate with modification and degassing steps to protect melt cleanliness.
Storage and shelf life
Store dry in original, moisture‑protected packaging. Keep covered to avoid contamination and maintain activity over the stated shelf life.
Impact on conductivity and corrosion
Proper refinement improves structural uniformity without harming conductivity or corrosion performance when dosing and melt practice are controlled.
Need support, samples, or a trial plan? Contact us to discuss your alloys, process window, and dosing targets.
