We unleash your business potential by maximize the business innovation.
Send EmailAluminum-Zinc Master Alloy, AlZn, 7429-90-5, 7440-66-6
Product Name: AlZn (Aluminum-Zinc Master Alloy)
Alloy System: Al-Zn binary alloy system
Primary Use: Strength-enhancing additive for aluminum alloys, corrosion resistance improvement, alloy control in special casting applications
| Parameter | Description |
|---|---|
| Product Name | Aluminum-Zinc Master Alloy (AlZn) |
| Alloy System | Al-Zn binary alloy |
| Alloy Type | Master alloy, strength-enhancing additive alloy |
| Main Components | Aluminum (Al), Zinc (Zn) |
| Form | Rod, ingot, or granule |
| Color | Silver-gray |
| CAS Numbers | Aluminum (Al): 7429-90-5, Zinc (Zn): 7440-66-6 |
| Primary Application | Mechanical strength enhancing additive, corrosion resistance improvement, alloy control |
PRODUCT DESCRIPTION AND EXPLANATION:
Aluminum-Zinc (AlZn) master alloy is a pre-alloy (master alloy) containing controlled amounts of zinc within an aluminum matrix. Master alloys are concentrated alloys used to add specific elements to aluminum alloys in a controlled and homogeneous manner.
AlZn master alloy is used to add the element zinc to aluminum-based alloys. Zinc is one of the most important alloying elements in aluminum alloys and is added to enhance both mechanical strength and corrosion resistance. The Al-Zn alloy system forms the basis of the 7xxx series (Al-Zn-Mg-Cu) high-strength aluminum alloys. These alloys are widely used in aerospace, automotive, and construction industries for applications requiring high strength.
This master alloy is supplied in rod, ingot, or granule form and can be produced with zinc contents ranging from 1% to 30% according to customer requirements. AlZn master alloy provides a reliable and homogeneous source for adding zinc to the final alloy and controlling alloy composition in aluminum foundries and alloy manufacturing facilities.
| Element | CAS No | Content (wt%) | Explanation |
|---|---|---|---|
| Aluminum (Al) | 7429-90-5 | Balance (~70.0 – 99.0) | Matrix main element |
| Zinc (Zn) | 7440-66-6 | 1.0 – 30.0 | Active additive element; strength enhancer, corrosion resistance |
| Other Impurities | - | ≤ 0.3 | Iron, silicon, etc. |
CHEMICAL COMPOSITION EXPLANATION:
The chemical composition of AlZn master alloy is designed to contain controlled amounts of zinc ranging from 1% to 30% within an aluminum matrix. The zinc content can be customized according to customer requirements and final application needs. As zinc percentage increases, the alloy's mechanical strength and hardness increase, but a slight decrease in ductility may be observed. Impurity levels are strictly controlled to ensure alloy quality. CAS numbers for Aluminum (7429-90-5) and Zinc (7440-66-6) are provided for chemical identification and regulatory compliance.
| Property | Value / Range | Unit | Explanation |
|---|---|---|---|
| Form | Rod, ingot, or granule | - | According to customer request |
| Color | Silver-gray | - | Characteristic metallic appearance |
| Density | 2.7 – 7.1 | g/cm³ | Depends on zinc content |
| Melting Point | 600 – 650 | °C | Depends on Al-Zn alloy composition |
| Melting Point (Zn) | ~419 | °C | Pure zinc reference |
| Electrical Conductivity | Low-Medium | %IACS | Zinc reduces conductivity |
| Thermal Conductivity | Medium | W/m·K |
PHYSICAL PROPERTIES EXPLANATION:
AlZn master alloy is supplied in rod, ingot, or granule form. It has a silver-gray color with a characteristic metallic appearance. Density varies significantly depending on zinc content; while pure aluminum has a density of ~2.70 g/cm³, pure zinc has a density of ~7.14 g/cm³. As zinc content increases, the alloy's density increases from 2.7 to 7.1 g/cm³.
The melting point ranges from 600-650°C depending on the exact alloy composition. Zinc addition significantly lowers the melting point of aluminum (~660°C). Electrical conductivity decreases with zinc addition; therefore, AlZn master alloys have limited use in applications requiring high conductivity. Thermal conductivity is at a medium level.
| Property | Evaluation | Explanation |
|---|---|---|
| Strength Increase | High | Zinc significantly increases mechanical strength of aluminum alloys |
| Corrosion Resistance | Improved | Can be developed with proper heat treatment |
| Hardness Increase | High | Increases alloy hardness |
| Castability | Good | Good fluidity in molten state |
| Heat Treatment Response | Excellent | Strength can be significantly increased by aging |
| Homogeneous Distribution | Good | Master alloy ensures homogeneous addition |
| Alloy Control | Precise | Zinc content can be precisely controlled |
FUNCTIONAL PROPERTIES EXPLANATION:
The most important functional property of AlZn master alloy is its ability to significantly increase the mechanical strength of aluminum alloys. Zinc has high solubility in aluminum solid solution and forms η' (MgZn₂) and η (MgZn₂) precipitates through aging heat treatment, imparting high strength to the alloy. This precipitation hardening mechanism forms the basis of the extraordinary strength properties of 7xxx series alloys.
Zinc can also improve the alloy's corrosion resistance with appropriate heat treatment combinations. Al-Zn-Mg-Cu (7xxx) alloys offer a combination of good corrosion resistance and high strength with proper heat treatment.
AlZn master alloy provides precise alloy control; zinc content can be precisely adjusted to optimize the final alloy's mechanical properties and corrosion resistance.
| Application | Description |
|---|---|
| Mechanical Strength Enhancer | Aerospace structural parts, automotive chassis components, high-strength aluminum parts |
| Corrosion Resistance Improvement | Marine applications, construction structures, parts used in corrosive environments |
| Casting Applications | Alloy control and composition adjustment in aluminum foundries |
| Heat Treatable Alloys | Production of 7xxx series (Al-Zn-Mg-Cu) high-strength alloys |
| Automotive Industry | Lightweight and high-strength structural parts, engine components |
| Aerospace Industry | Aircraft fuselages, wing structures, landing gear |
| Construction Industry | Structural profiles, durable aluminum building elements |
| Defense Industry | Light armored vehicles, missile components |
APPLICATION AREAS EXPLANATION:
Mechanical Strength Enhancer: AlZn master alloy is used in the production of aerospace structural parts, automotive chassis components, and high-strength aluminum parts. Zinc significantly increases the tensile strength and yield strength of the alloy.
Corrosion Resistance Improvement: With appropriate heat treatment, AlZn alloys offer good corrosion resistance for marine applications, construction structures, and parts used in corrosive environments.
7xxx Series Alloys: AlZn master alloy is the fundamental component in the production of Al-Zn-Mg-Cu (7xxx) high-strength aluminum alloys. These alloys are the most widely used high-strength aluminum alloys in the aerospace industry.
Heat Treatment Response: AlZn alloys respond excellently to aging heat treatment. Strength can be significantly increased through the precipitation hardening mechanism.
| Parameter | Information |
|---|---|
| Storage Conditions | Store in dry and cool environment |
| Storage Temperature | Ambient (room temperature) |
| Protection | Protect from moisture; keep away from direct sunlight |
| Oxidation Protection | Protection against oxidation recommended due to zinc content |
| Shelf Life | Unlimited (under proper storage) |
| Packaging | Rods/ingots: Wooden pallets or metal crates; Granules: Closed containers |
| Transport | According to standard industrial transport rules; protect from moisture |
STORAGE AND TRANSPORT EXPLANATION:
AlZn master alloy should be stored in a dry and cool environment, protected from moisture and direct sunlight. Due to zinc content, appropriate protection measures should be taken to prevent surface oxidation during long-term storage. Under proper storage conditions, shelf life is unlimited. Packaging varies depending on product form: rod and ingot forms are shipped on wooden pallets or in metal crates, while granule form is shipped in closed containers (drums or bags). During transport, care should be taken to prevent the product from contacting moisture and to protect it from mechanical damage.
| Parameter | Information |
|---|---|
| GHS Classification | Not hazardous under normal use |
| Health Risks | Dust form may cause respiratory tract irritation |
| Melting Risks | Zinc vapors may form during melting; adequate ventilation required |
| PPE Requirements | Gloves, safety goggles, dust mask |
| Dust Explosion Risk | Aluminum dust can be explosive |
| Storage | Dry and cool environment |
SAFETY PRECAUTIONS:
Inhalation: Avoid inhalation of dust. Ensure adequate ventilation during melting operations.
Skin Contact: Not hazardous under normal use; however, dust form may cause skin irritation.
Eye Contact: In case of dust contact, rinse with plenty of water.
Melting: Zinc vapors (metal fume fever risk) may form during melting operations. Use local exhaust ventilation or fume hood.
PPE Recommendations: Wear protective gloves (heat-resistant), safety goggles (for dust and splashes), and dust mask or respiratory protection if necessary.
Dust Explosion: Aluminum dust can be explosive; avoid dust formation during processing.
The typical mechanical properties of Al-Zn alloys obtained by adding AlZn master alloy to the final alloy are given below. These values vary significantly depending on zinc content, other alloy components, and heat treatment.
| Property | Value Range | Explanation |
|---|---|---|
| Tensile Strength | 150 – 600+ MPa | Depends on zinc content and heat treatment (7xxx series) |
| Yield Strength | 80 – 550+ MPa | |
| Elongation (%) | 3 – 15 | Ductility decreases with increasing zinc content |
| Hardness (HB) | 40 – 180 | |
| High Temperature Strength | Medium | 7xxx alloys have medium temperature strength |
MECHANICAL PROPERTIES EXPLANATION:
When AlZn master alloy is added to the final alloy, zinc content and applied heat treatment cause significant changes in mechanical properties. Zinc can significantly increase the mechanical strength of aluminum alloys. 7xxx series (Al-Zn-Mg-Cu) alloys can achieve tensile strength values exceeding 600 MPa with appropriate heat treatment.
As zinc content increases, the alloy's tensile strength and hardness increase, but ductility (elongation) decreases. Mechanical properties vary significantly depending on the exact alloy composition (other elements such as Mg, Cu) and applied heat treatment (solution treatment, quenching, aging).
SUMMARY:
Aluminum-Zinc (AlZn) master alloy is a pre-alloy containing controlled amounts of zinc (1-30%) within an aluminum matrix. It is supplied in rod, ingot, or granule form. Density ranges from 2.7-7.1 g/cm³ depending on zinc content, and melting point ranges from 600-650°C.
AlZn master alloy is used to add zinc to aluminum alloys. Zinc significantly increases the mechanical strength of aluminum alloys, improves corrosion resistance, and provides alloy control in special casting applications. It is the fundamental component of 7xxx series (Al-Zn-Mg-Cu) high-strength aluminum alloys.
Store in dry and cool environment, protected from moisture and direct sunlight. Not hazardous under normal use; however, avoid inhalation of dust and ensure adequate ventilation during melting operations. Personal protective equipment (gloves, safety goggles, dust mask) is recommended.
| Property | Value |
|---|---|
| Product Name | Aluminum-Zinc Master Alloy (AlZn) |
| Alloy Type | Master alloy, strength-enhancing additive alloy |
| Form | Rod, ingot, granule |
| Color | Silver-gray |
| Density | 2.7 – 7.1 g/cm³ (depending on Zn content) |
| Melting Point | 600 – 650°C |
| Zn Content | 1 – 30% (customizable) |
| CAS Numbers | Al: 7429-90-5, Zn: 7440-66-6 |
| Industry | Applications |
|---|---|
| Aerospace | High-strength structural parts, 7xxx series alloys |
| Automotive | Lightweight and durable structural parts, chassis components |
| Construction | Structural profiles, durable aluminum building elements |
| Defense | Light armored vehicles, missile components |
| Casting | Alloy control and composition adjustment |
NOT HAZARDOUS: Not hazardous under normal use
DUST RISK: Avoid inhalation of dust
MELTING RISK: Zinc vapors may form during melting; ensure adequate ventilation
PPE: Gloves, safety goggles, dust mask should be used
STORAGE: Store in dry, cool environment away from direct sunlight
OXIDATION: Protection against oxidation recommended due to zinc content
High Strength Increase: AlZn master alloy significantly increases the mechanical strength of aluminum alloys. 7xxx series alloys can achieve tensile strength values exceeding 600 MPa with appropriate heat treatment. This makes AlZn alloys ideal for high-strength applications in aerospace and automotive industries.
Heat Treatment Response: AlZn alloys respond excellently to aging heat treatment. Strength can be significantly increased through the precipitation hardening mechanism (η' and η phases). Heat treatment parameters are critical in determining final mechanical properties.
Adjustable Zinc Content: AlZn master alloy can be produced with zinc contents ranging from 1% to 30% according to customer requirements. As zinc percentage increases, mechanical strength and hardness increase, but a decrease in ductility is observed. Optimum zinc content should be determined according to application requirements.
Foundation of 7xxx Series Alloys: AlZn master alloy is the fundamental component in the production of Al-Zn-Mg-Cu (7xxx) high-strength aluminum alloys. These alloys are the most widely used high-strength aluminum alloys in the aerospace industry.
Melting Safety: Zinc vapors (metal fume fever risk) may form during melting of AlZn master alloy. Use local exhaust ventilation or fume hood during melting operations and ensure appropriate respiratory protection.
Aluminum Dust Safety: Aluminum dust generated during processing of AlZn alloy can be explosive. Avoid dust formation during processing and take appropriate dust control measures.
IMPORTANT DISCLAIMER: This Technical Data Sheet (TDS) is for informational purposes only and is prepared based on available technical data. The information provided is believed to be accurate. However, the user is solely responsible for determining the product's suitability for their specific applications and for complying with all applicable local, national, and international regulations and safety requirements. For complete safety, storage, handling, transport, waste, and regulatory compliance information, please refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier. Users are obligated to test the product in their own processes and applications. All occupational health and safety rules must be observed when working with AlZn master alloy.