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Send EmailAlV Vanadium-Enriched Aluminum Master Alloy, AlV5, AlV10, 7440-62-2, 7429-90-5, 7440-21-3, 7439-89-6, 7440-42-8
ALUMINUM VANADIUM MASTER ALLOY (AlV)
ALV VANADIUM-ENRICHED ALUMINUM MASTER ALLOY / WAFFLE
1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY
| Parameter | Information |
|---|---|
| Product Name | Aluminum Vanadium Master Alloy |
| Chemical Name | Aluminum-Vanadium Alloy, AlV Master Alloy |
| Other Names | Vanadium Grain Refiner, V-Added Aluminum Modifier, AlV Waffle, Grain Refining Additive, Aluminum-Vanadium Alloy |
| Chemical Composition | Al + V (Vanadium content varies by variant) |
| CAS Numbers (Component Based) | Vanadium (V): 7440-62-2, Aluminum (Al): 7429-90-5, Silicon (Si): 7440-21-3, Iron (Fe): 7439-89-6, Boron (B): 7440-42-8 |
| Appearance | Silver-gray metallic waffle |
| Odor | Odorless |
| Physical State (20°C) | Solid (metallic) |
2. CHEMICAL STRUCTURE
2.1. Molecular Structure
Aluminum Vanadium master alloy consists of vanadium phases homogeneously distributed within an aluminum matrix. Vanadium forms nucleation sites during solidification, refining the grain structure. It also stabilizes harmful elements such as iron, improving alloy cleanliness and enhancing mechanical properties.
Structural Features:
ALUMINUM VANADIUM MASTER ALLOY (AlV)
|
Al Matrix + V Phases
|
+----------------+----------------+
| | |
Nucleation Grain Stabilization
Sites Refinement (Iron Neutralization)
2.2. Structural Properties
| Parameter | Value |
|---|---|
| Crystal Structure | Al matrix (FCC) + V-containing intermetallic phases |
| Density | ~2.7 g/cm³ (Al-based matrix) |
| Melting Point | ~660 °C |
| Appearance | Silver-gray metallic waffle |
| Physical Form | Waffle Ingot |
3. COMMERCIAL VARIANTS AND COMPOSITIONS
3.1. AlV Master Alloy Variants
| Variant | Vanadium (V) Content | Aluminum (Al) Content | Description |
|---|---|---|---|
| AlV5 | 4.0 – 6.0% | Remainder | Low vanadium content, standard grain refinement |
| AlV10 | 9.0 – 11.0% | Remainder | High vanadium content, intensive grain refinement |
3.2. Typical Impurity Limits (All Variants)
| Parameter | Max. Value |
|---|---|
| Silicon (Si) | ≤ 0.30% |
| Iron (Fe) | ≤ 0.30% |
| Boron (B) | ≤ 0.05% |
| Other Total Impurities | ≤ 0.10% |
4. PHYSICAL AND CHEMICAL PROPERTIES
| Property | Value | Description |
|---|---|---|
| Appearance | Silver-gray metallic | - |
| Odor | Odorless | - |
| Chemical Composition | Al + V | Varies depending on variant |
| Density | ~2.7 g/cm³ | - |
| Melting Point | ~660 °C | - |
| Solubility in Water (25°C) | Insoluble | - |
| Solubility in Acids | Soluble | Releases hydrogen gas |
| Physical Form | Waffle Ingot | - |
| Packaging | Boxed protected waffle ingots, optional vacuum packaging | - |
5. STABILITY AND REACTIVITY
| Parameter | Information |
|---|---|
| Chemical Stability | Stable under normal conditions; forms a passive oxide layer on the surface. |
| Conditions to Avoid | Oxidizing atmosphere at high temperatures, strong acids, moisture. |
| Incompatible Materials | Strong acids, strong bases, oxidizing agents. |
| Hazardous Decomposition Products | Upon oxidation at high temperatures: aluminum oxide (Al₂O₃) and vanadium oxide (V₂O₅). |
| Hazardous Polymerization | Will not occur. |
| Hygroscopicity | Low; does not absorb moisture under normal conditions. |
5.1. Chemical Reactions
-
Oxidation (at High Temperature):
4Al + 3O₂ → 2Al₂O₃
4V + 5O₂ → 2V₂O₅ -
Reaction with Acids:
2Al + 6HCl → 2AlCl₃ + 3H₂↑
6. APPLICATION AREAS
6.1. Grain Refiner Applications
| Application | Function | Details |
|---|---|---|
| Grain Refiner Addition | Grain structure control | Forms nucleation sites during solidification |
| Microstructure Control | Homogeneous grain distribution | Used in high-strength casting alloys |
| Alloy Cleanliness | Iron stabilization | Stabilizes harmful elements |
6.2. Sectoral Applications
| Application | Sector |
|---|---|
| Automotive Engine Parts, Chassis Castings | Automotive |
| Aerospace Components, Structural Castings | Aerospace |
| High-Strength Casting Alloys | Defense Industry |
| Grain Control in AlMg, AlSi, AlCu Systems | Casting Metallurgy |
6.3. Sectoral Suitability Table
| Sector | Suitability | Explanation |
|---|---|---|
| Automotive | Suitable | Grain control in engine and chassis castings |
| Aerospace | Suitable | Mandatory in high-strength castings |
| Defense Industry | Suitable | Preferred for microstructure control |
| Construction | Limited | Limited use, generally not required |
| Electrical/Electronics | Limited | Limited use in special thermal and structural alloys |
| Food Packaging | Not Suitable | Not suitable for food contact |
7. STANDARDS AND COMPLIANCE
| Standard | Description |
|---|---|
| EN 1706 | European aluminum casting alloy standards |
| AMS 4289 | Aerospace material specification |
| ASTM B928 | Aluminum alloy grain refiner standards |
8. ALTERNATIVE / SUBSTITUTE PRODUCTS
| Alternative | Description | When to Use |
|---|---|---|
| AlV5 | Low vanadium content | Standard grain refinement applications |
| AlV10 | High vanadium content | Applications requiring intensive grain refinement |
| AlTi5B1 | Titanium-boron grain refiner | Alternative to vanadium grain refiner |
| Pure Vanadium | Elemental V | Direct alloying, more difficult to dissolve |
| AlVFe | Iron-containing alternative | Applications requiring iron neutralization |
9. SAFETY AND TOXICOLOGY
| Parameter | Value |
|---|---|
| Acute Oral Toxicity (LD50, Rat) | > 2,000 mg/kg (low toxicity) |
| Dermal Toxicity | Low |
| Skin Irritation | Mild irritant |
| Eye Irritation | Mild to moderate irritant |
| Inhalation | Metal dust inhalation may cause respiratory tract irritation. |
| Carcinogenicity | Not classified as carcinogenic. |
| Mutagenicity | Not mutagenic. |
| Chronic Effects | Long-term data on aluminum and vanadium compounds is limited. |
| Environmental Hazards | Low to moderate aquatic toxicity. |
9.1. GHS Classification
| Hazard Class | Category | H-Statement |
|---|---|---|
| Flammable Solid (Metal Dust) | Category 1 | H228: Flammable solid. |
| Skin Irritation | Category 2 | H315: Causes skin irritation. |
| Eye Irritation | Category 2A | H319: Causes serious eye irritation. |
| Specific Target Organ Toxicity | Category 3 | H335: May cause respiratory irritation. |
Signal Word: WARNING
Hazard Pictograms: GHS02 (Flame), GHS07 (Exclamation Mark)
10. STORAGE AND SHELF LIFE
| Parameter | Condition |
|---|---|
| Storage Conditions | Store in a cool, dry, and well-ventilated area. |
| Container Requirements | Dry, moisture-free environment; store in original packaging. |
| Temperature | Room temperature (15-25°C). |
| Shelf Life | Unlimited under appropriate conditions (except surface oxidation). |
| Stability Note | Stable under normal conditions; forms a passive oxide layer on the surface. |
11. PACKAGING OPTIONS
| Packaging Type | Quantity | Material |
|---|---|---|
| Waffle Ingot | 5 kg, 10 kg, 20 kg | Boxed protected, optional vacuum packaging |
| Ingot | 1 kg, 5 kg, 10 kg | Plastic wrap or coated metal cases |
| Granule | 1 kg, 5 kg, 10 kg, 25 kg | Moisture-proof plastic bags or drums |
12. TRANSPORT INFORMATION
| Parameter | Information |
|---|---|
| UN Number | Not classified (specific regulations apply for metal alloys) |
| Hazard Class | - |
| Packing Group | - |
| ADR/RID | Not regulated (except powder form) |
| IMDG | Not regulated (except powder form) |
| IATA | Not regulated (except powder form) |
| HS Code | 7601.20.00.00.00 (Unwrought aluminum alloys) |
13. REGULATORY STATUS
| Region / Authority | Status |
|---|---|
| European Union (REACH) | Registered as an alloy; evaluated by components |
| Turkey (KKDIK) | Compliance required |
| TSCA (USA) | Registered |
| China | Registered; major production and export country |
14. OTHER NAMES AND SYNONYMS
| Name | Description |
|---|---|
| AlV Master Alloy | Common name |
| AlV5 / AlV10 | Vanadium-containing variants |
| Vanadium Grain Refiner | Functional name |
| V-Added Aluminum Modifier | Descriptive name |
| AlV Waffle | Physical form name |
| Grain Refining Additive | Usage description |
| Aluminum-Vanadium Alloy | Descriptive name |
15. QUICK REFERENCE TABLE
| Property | Value |
|---|---|
| Density | ~2.7 g/cm³ |
| Melting Point | ~660 °C |
| Vanadium Content (Variant Dependent) | 4% – 11% |
| Physical Form | Waffle Ingot |
| HS Code | 7601.20.00.00.00 |
| GHS Signal Word | WARNING |
16. CRITICAL WARNINGS AND BEST PRACTICES
CRITICAL WARNINGS:
-
Grain Refiner Effect: AlV master alloy provides grain refinement in aluminum alloys through vanadium. Correct dosage and application time are critical.
-
High-Performance Alloys: Vanadium addition has become standard for microstructure control in aerospace and defense industry applications.
-
Quality and Origin: Phase stability and impurity control are critical for consistency of grain refinement effect. Trader-sourced products may show variability in purity and origin.
-
Oxidation: Oxidizes in oxidizing atmospheres at high temperatures; inert atmosphere or vacuum is required for melting operations.
-
Acid Reactivity: Reacts with strong acids releasing hydrogen gas.
-
Flammable Powder Hazard: Fine powder form may be flammable and explosive. Dust formation must be avoided.
BEST PRACTICE RECOMMENDATIONS:
-
Storage:
-
Store in a cool, dry, and well-ventilated area.
-
Store in original packaging, moisture-free environment.
-
Keep away from acids and oxidizing agents.
-
Store at room temperature (15-25°C).
-
-
Handling:
-
Add to molten aluminum bath in controlled amounts.
-
Calculate correct dosage to achieve target V ratio.
-
Ensure proper mixing conditions for optimum homogenization.
-
Use vacuum or inert atmosphere (Ar, N₂) for melting operations.
-
-
Waste Management:
-
Dispose of in accordance with local regulations.
-
Do not discharge into water sources.
-
For large quantities, aluminum and vanadium recovery should be considered.
-
LEGAL DISCLAIMER
This Technical Data Sheet (TDS) is for informational purposes only and has been prepared based on available technical data. The user is solely responsible for determining the suitability of the product for their specific applications and for complying with all local, national, and international regulations. For complete safety, storage, handling, transport, disposal, and regulatory compliance information, the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier must be consulted. This document does not substitute professional advice. Aluminum Vanadium master alloy is a critical grain refiner additive in high-performance aluminum casting applications; correct variant selection and application conditions directly affect final alloy performance.
