Grain refinement
Grain refiners — AlTi5B1 / AlTi3B1
For DC casting, billet and slab. Nucleant particles stay fine and evenly dispersed because the melt is stirred through the reaction, not after it.
Manufacturer · Xuzhou, Jiangsu, China
Aluminium fluxes and master alloys, made to hold the same number in every lot.
Grain refiners, modifiers, degassing and covering fluxes for foundries, die casters and rolling mills. We batch in single furnaces, so the Ti/B ratio you qualify does not drift between deliveries.
AlTi5B1 · AlTi3B1Grain refiners, rod and waffle form
Sodium-freeDegassing flux, low smoke
COA per lotChemical analysis shipped with each batch
Four product lines, one supply source
Most smelters buy grain refiner from one supplier, flux from another, and spend the difference on settling claims between them. We cover the whole melt-treatment chain.
Structure modification
Modifiers — AlSr10 / AlSr5
Converts acicular silicon into a fine fibrous structure in Al-Si casting alloys. Improves elongation and machinability without a long holding time.
Degassing
Degassing & refining flux
Sodium-free and low-smoke. Cuts hydrogen to the level where gas porosity stops being the reason a casting is scrapped, and reduces ventilation load on the shop floor.
Melt protection
Covering & dross treatment flux
Forms a continuous liquid layer over the melt to hold metal temperature and stop oxidation, and separates entrapped aluminium from the dross so it goes back in the furnace, not the bin.
Typical analysis
Values below are typical, not a guarantee. Final specification and tolerances are confirmed in the COA issued for your lot.
| Product | Code | Typical composition | Form | Typical use |
|---|---|---|---|---|
| Grain refiner | AlTi5B1 | Ti 4.8–5.2 %, B 0.95–1.05 %, Al balance | Rod / waffle / ingot | DC billet, slab, 6xxx extrusion |
| Grain refiner | AlTi3B1 | Ti 2.8–3.2 %, B 0.95–1.05 %, Al balance | Rod / waffle | Lower Ti additions, thin-wall casting |
| Modifier | AlSr10 | Sr 9.0–11.0 %, Al balance | Ingot / waffle | Al-Si casting alloys, ADC12 / A356 |
| Degassing flux | HZ-DG | Chloride-based, sodium-free | Tablet / granular | Hydrogen removal before pouring |
| Covering flux | HZ-CV | Low-melting chloride / fluoride mix | Powder | Melt surface protection |
| Dross refining flux | HZ-DR | Fluoride-bearing | Powder | Metal recovery from dross and ash |
What actually goes wrong with these products
Not a list of adjectives. These are the three failures buyers bring to us after switching suppliers.
01
Ti/B ratio drifts between lots
When the refiner is remelted from scrap or blended from bought-in master alloy, boron recovery varies and dosing that worked in March over-refines in June. Single-furnace batching keeps the ratio inside a narrow band, lot after lot.
02
Degassing flux brings sodium in
Sodium in the flux ends up in the melt and shows up later as hot cracking or poor anodising. Our degassing grades are sodium-free, and low-smoke, so the shop floor ventilation does not become the constraint on cycle time.
03
Particle size does not match the furnace
A granule sized for a 20 t reverberatory furnace dissolves too slowly in a 500 kg crucible, and sits on the surface oxidising. We size the product to your furnace and dosing method, not to a catalogue default.
Run it on your own line before you commit
Tell us the alloy grade and furnace type, and we ship a 2 kg sample with the COA. No charge for the sample, you cover nothing until it performs.
Talk to the plant, not a trading desk
Enquiries are answered by the person who handles production scheduling, so lead time and batch size questions get a real answer the first time.
- Company
- Xuzhou Huazhong Aluminum Co., Ltd.
- Location
- Xuzhou, Jiangsu, China
- Contact
- Zack Deng — Export Sales
- Products
- Fluxes · Master alloys · Grain refiners
What to send us
Alloy grade (ADC12, A356, 6063, 1xxx), furnace type and capacity, current product and dosing rate, and the defect you are trying to fix. With those four lines we can come back with a matching grade and a price level for a trial quantity, usually within one working day.