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Zamak 5, Zinc-Aluminum-Copper Alloy, Alloy No 5, Zinc Alloy 5, 7440-66-6, 7429-90-5, 7440-50-8, 7439-95-4

Zamak 5, Zinc-Aluminum-Copper Alloy, Alloy No 5, Zinc Alloy 5, 7440-66-6, 7429-90-5, 7440-50-8, 7439-95-4

ZAMAK 5 (ZINC-COPPER-ALUMINUM ALLOY / ZINC-ALUMINUM-COPPER ALLOY)

PRODUCT IDENTIFICATION INFORMATION

Parameter Information
Product Name Zamak 5 / Zinc-Copper-Aluminum Alloy
Other Technical Names Zinc-Aluminum-Copper Alloy, Alloy No 5, Zinc Alloy 5, ZnAl4Cu1, Zinc Die Casting Alloy
CAS Numbers 7440-66-6 (Zinc); 7429-90-5 (Aluminum); 7440-50-8 (Copper); 7439-95-4 (Magnesium)
Product Family Zinc-based casting alloy
Appearance Silver-white metallic

CHEMICAL STRUCTURE

    Zamak 5 (Zn-Al-Cu-Mg Alloy)
    
    Zinc Matrix (HCP Crystal Structure)
    with Aluminum, Copper and Magnesium Atoms
    
         Zn  Zn  Zn  Zn
           \  |  /  |
            Zn Zn Zn Zn
           /  |  \  |
         Zn  Zn  Zn  Zn
    
    Aluminum (Al), Copper (Cu) and Magnesium (Mg)
    Atoms Dissolved in Zinc Matrix
    High Strength and Hardness
    Excellent Castability and Dimensional Stability

Matrix: Zinc-based solid solution (HCP crystal structure)
Alloying Elements: Aluminum, Copper, Magnesium
Alloy Type: Zinc-based, aluminum-copper-magnesium doped

SECTION 1: CHEMICAL IDENTITY AND DEFINITION

Parameter Information
Product Name Zamak 5 / Zinc-Copper-Aluminum Alloy
Other Technical Names (English) Zinc-Aluminum-Copper Alloy, Alloy No 5, Zinc Alloy 5, ZnAl4Cu1, Zinc Die Casting Alloy
Other Technical Names (Turkish) Zamak 5, Çinko-Bakır-Alüminyum Alaşımı, Beyaz Metal, Kalıp Metali
CAS Numbers 7440-66-6 (Zinc); 7429-90-5 (Aluminum); 7440-50-8 (Copper); 7439-95-4 (Magnesium)
Alloy Class Zinc-based casting alloy
Crystal Structure Hexagonal Close Packed (HCP)
Appearance Silver-white metallic
Odor Odorless
Color Silver-white
Luster High metallic luster
Magnetic Properties Non-magnetic

SECTION 2: CHEMICAL COMPOSITION AND TECHNICAL SPECIFICATIONS

Element Percentage (%) Explanation
Zinc (Zn) Balance (~95-96%) Main component; forms the matrix
Aluminum (Al) 3.5% - 4.3% Provides strength and hardness; increases fluidity
Copper (Cu) 0.7% - 1.3% Increases wear resistance; increases hardness
Magnesium (Mg) 0.03% - 0.08% Increases corrosion resistance; refines grain structure
Lead (Pb) ≤ 0.005% Impurity; controlled
Iron (Fe) ≤ 0.100% Impurity; controlled
Cadmium (Cd) ≤ 0.005% Impurity; controlled
Tin (Sn) ≤ 0.003% Impurity; controlled

Note: Zamak 5 alloy is a mixture and does not have a specific CAS number. The CAS numbers of its components are listed above.

SECTION 3: PHYSICAL PROPERTIES

Property Value Test Method / Note
Appearance Silver-white metallic Visual
Density (20°C) ~6.8 g/cm³ ASTM D792
Melting Point ~380°C (716°F) Low melting point; easy processability
Boiling Point ~907°C -
Hardness (Brinell) ~91 HB ASTM E10
Tensile Strength ~328-331 MPa ASTM E8
Yield Strength ~220-230 MPa ASTM E8
Elongation ~1-2% ASTM E8
Impact Strength (Charpy) ~58 J ASTM E23
Thermal Conductivity ~113 W/m·K -
Electrical Conductivity ~27% IACS -
Thermal Expansion Coefficient ~27.4 × 10⁻⁶ /°C -
Corrosion Resistance Good Good resistance in various environments
Magnetic Properties Non-magnetic -
Recyclability 100% recyclable -

SECTION 4: ZAMAK 5 ALLOY COMPARISON TABLE

Property Zamak 3 Zamak 5 Zamak 7 Explanation
Aluminum (%) 3.5-4.3 3.5-4.3 3.5-4.3 Similar in all three alloys
Copper (%) ≤0.25 0.7-1.3 ≤0.10 Zamak 5 has highest copper content
Magnesium (%) 0.02-0.05 0.03-0.08 0.005-0.02 Zamak 5 has medium level
Tensile Strength (MPa) ~283 ~328-331 ~283 Zamak 5 has highest strength
Hardness (Brinell) ~82 ~91 ~80 Zamak 5 is hardest
Elongation (%) ~3-4% ~1-2% ~4-5% Zamak 5 has lower ductility
Wear Resistance Medium High Low Zamak 5 has best wear resistance
Application Area General purpose High strength Complex casting -

SECTION 5: CHEMICAL PROPERTIES AND REACTIVITY

Parameter Information
Chemical Character Zinc-based alloy; aluminum, copper and magnesium doped; high strength; good corrosion resistance; excellent castability
Stability Stable under normal conditions; May form oxide layer on surface
Reactivity Soluble in dilute acids; Reacts with strong alkalis; Oxidizes at high temperatures
Incompatible Materials Strong acids, strong alkalis, oxidizing agents
Corrosion Resistance Good; Provides good resistance in various environments; Extends service life
Acid Reaction Zn + 2HCl → ZnCl₂ + H₂ (in dilute acids)
Alkali Reaction Zn + 2NaOH + 2H₂O → Na₂[Zn(OH)₄] + H₂ (in strong alkalis)
Oxidation 2Zn + O₂ → 2ZnO (oxide layer on surface)

SECTION 6: EFFECTS OF ALLOYING ELEMENTS

Element Effect Explanation
Aluminum (Al) Strength and hardness Provides 10% more strength and hardness compared to Zamak 3; Increases fluidity and castability; Grain refining effect
Copper (Cu) Wear resistance Significantly increases wear resistance; Increases hardness; Effective in components subject to frequent use or friction
Magnesium (Mg) Corrosion resistance Increases corrosion resistance; Refines grain structure; Improves mechanical properties
Zinc (Zn) Matrix Main component; Forms the base structure of the alloy; Provides low melting point

SECTION 7: FUNCTIONAL PROPERTIES AND MECHANISM OF ACTION

Property Explanation
High Strength and Hardness Zamak 5's tensile strength (~328-331 MPa) and hardness (91 Brinell) enable it to withstand mechanical stress. This makes it ideal for durable components. Offers 10% more strength and hardness compared to Zamak 3.
Excellent Castability Zamak 5 is highly suitable for high-pressure die casting applications. This allows decorative and functional parts to be produced in complex, detailed and consistent shapes.
Dimensional Stability Maintains its shape and precision over time. This means it performs reliably despite stress or varying temperatures.
Wear Resistance Thanks to the copper addition, it offers effective wear resistance in components subject to frequent use or friction.
Versatile Plating Options Zamak 5 performs well in plating, painting and chromating processes. This provides attractive aesthetics and enhanced surface protection.
Corrosion Resistance Zamak 5 provides good resistance to corrosion in various environments, extending service life.
Economic Efficiency The relatively low melting point (~380°C) reduces energy consumption during production and offers an economic advantage.

SECTION 8: MAIN APPLICATION AREAS

Industry / Application Function Typical Use
Automotive Industry Durable and detailed parts Carburetors; Fuel pumps; Brake systems; Steering components; Door locks; Preferred for durable and detailed parts
Accessory Production Decorative and durable products Door handles; Window accessories; Lamp bodies; Decorative metal items; Ideal for decorative and durable products
Electronics and Mechanical Hardware Electronic housings and mechanical parts Computer cases; Phone housings; Electronic device bodies; Mechanical hardware components
Casting Applications High-pressure die casting Used in high-pressure die casting processes; Mass production of complex geometry parts
White Goods Structural components Washing machine parts; Dishwasher parts; White goods components
Defense Industry Mechanical parts Weapon bodies; Mechanical components

SECTION 9: QUALITY SPECIFICATIONS

Parameter Specification Test Method
Appearance Silver-white metallic Visual
Zinc (Zn) Balance (~95-96%) AAS / ICP
Aluminum (Al) 3.5% - 4.3% AAS / ICP
Copper (Cu) 0.7% - 1.3% AAS / ICP
Magnesium (Mg) 0.03% - 0.08% AAS / ICP
Lead (Pb) ≤ 0.005% AAS / ICP
Iron (Fe) ≤ 0.100% AAS / ICP
Cadmium (Cd) ≤ 0.005% AAS / ICP
Tin (Sn) ≤ 0.003% AAS / ICP
Tensile Strength ≥ 328 MPa ASTM E8
Hardness (Brinell) ≥ 91 HB ASTM E10
Density ~6.8 g/cm³ ASTM D792
Melting Point ~380°C DSC

SECTION 10: TOXICOLOGICAL PROFILE

Parameter Value
Acute Oral Toxicity Low toxicity (metallic alloy)
Acute Inhalation Toxicity Metal fume/dust inhalation may cause irritation
Skin Irritation Metallic form is not irritating
Eye Irritation Metallic form is not irritating
Chronic Toxicity Zinc compounds may show health effects with prolonged exposure
Carcinogenicity Not classified as carcinogenic
Mutagenicity Not classified as mutagenic
Target Organs Respiratory system (dust/fume irritation)
Occupational Exposure Limit (8h TWA) 10 mg/m³ (Zn dust); 0.1 mg/m³ (Cu fume)
Special Toxicity Note Metallic alloy is relatively safe; Metal fume and dust generated during melting, welding or grinding are harmful to health; Appropriate dust control measures should be used

SECTION 11: GHS CLASSIFICATION AND LABELING

GHS Classification (in compliance with CLP and UN GHS):

Hazard Class Category H-Statement
Generally not classified as hazardous - -
STOT - SE (Single Exposure) Category 3 H335 (optional)

Note: Not classified as hazardous in solid state. However, metal fume and dust generated during melting, welding or grinding are harmful to health.

Signal Word: Signal word not required (not dangerous) or WARNING (optional)

Hazard Pictograms: GHS07 (optional)

Hazard Statements (H-Codes) - if classified:

Code Statement
H335 May cause respiratory irritation

NFPA 704 Hazard Classification:

Health Flammability Reactivity Special
0 0 0 -
(Minimal health hazard) (Not flammable) (Stable) (None)

SECTION 12: PRECAUTIONARY STATEMENTS (P-CODES)

Code Statement
P261 Avoid breathing dust/fume/gas/mist/vapors/spray
P264 Wash hands thoroughly after handling
P271 Use only outdoors or in a well-ventilated area
P280 Wear protective gloves/protective clothing/eye protection/face protection
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing
P312 Call a POISON CENTER/doctor if you feel unwell
P362+P364 Take off contaminated clothing and wash it before reuse
P403+P233 Store in a well-ventilated place. Keep container tightly closed
P501 Dispose of contents/container in accordance with local/regional/national/international regulations

SECTION 13: FIRST AID MEASURES

Exposure Route Action to Take
Inhalation Move to fresh air immediately. Keep at rest in a position comfortable for breathing. If symptoms persist, get medical attention.
Skin Contact Wash with plenty of soap and water. Remove contaminated clothing. If skin irritation occurs, get medical advice/attention.
Eye Contact Rinse immediately with plenty of water for at least 15 minutes. Keep eyelids open. Remove contact lenses. Continue rinsing. If eye irritation persists, get medical advice/attention.
Ingestion Rinse mouth with water. Do NOT induce vomiting. Drink plenty of water. If symptoms develop, get medical attention.

SECTION 14: FIRE-FIGHTING MEASURES

Parameter Information
Fire Hazard Not flammable (ingot). Flammable in dust form.
Hazards During Fire May release zinc oxide fumes at high temperatures
Suitable Extinguishing Media Dry chemical powder, CO₂, sand
Unsuitable Extinguishing Media Water (violent reaction with molten metal)
Special Protective Equipment Self-contained breathing apparatus (SCBA), full protective clothing
Special Precautions Prevent dust from entering sewers and waterways; Do not inhale fumes

SECTION 15: STORAGE AND SHELF LIFE

Parameter Information
Storage Conditions Cool, dry, well-ventilated area; Away from incompatible materials; Keep in original packaging
Container Requirements Keep in original packaging, dry containers; Protect from corrosion
Materials to Protect From Strong acids, strong alkalis, oxidizing agents, moisture
Shelf Life Unlimited (under proper storage conditions)
Stability Note Stable under normal conditions; May form oxide layer on surface; Protect from moisture

SECTION 16: PACKAGING OPTIONS

Packaging Type Quantity Material
Wooden Crate 50-200 kg Wooden crate (with inner lining)
Steel Case 50-200 kg Steel case
Steel Drum 100-500 kg Corrosion-resistant lined steel
Plastic Drum 25-50 kg HDPE
Pallet 500-1000 kg Steel pallet
Bulk Custom quantities Container

SECTION 17: TRANSPORT INFORMATION

Parameter Information
UN Number Not regulated (not dangerous)
Hazard Class Not applicable
Packing Group Not applicable
ADR/RID Not regulated
IMDG Code Not regulated
IATA (Air) Not regulated
Marine Pollutant No
Transport Temperature Ambient temperature; Protect from moisture

SECTION 18: OTHER NAMES AND SYNONYMS

Type Name
Turkish Names Zamak 5, Çinko-Bakır-Alüminyum Alaşımı, Beyaz Metal, Kalıp Metali, Oto Parça Malzemesi, Dayanıklı Metal
English Names Zinc-Aluminum-Copper Alloy, Alloy No 5, Zinc Alloy 5, ZnAl4Cu1, Zinc Die Casting Alloy
Trade Names Zamak 5, Alloy 5, ZA-5
Chemical Names Zinc-Aluminum-Copper-Magnesium Alloy
CAS Numbers 7440-66-6 (Zn); 7429-90-5 (Al); 7440-50-8 (Cu); 7439-95-4 (Mg)

SECTION 19: SUMMARY TABLE

Parameter Value
Product Zamak 5 (Zinc-Copper-Aluminum Alloy)
Alloy Class Zinc-based casting alloy
CAS Numbers 7440-66-6 (Zn); 7429-90-5 (Al); 7440-50-8 (Cu); 7439-95-4 (Mg)
Appearance Silver-white metallic
Density ~6.8 g/cm³
Melting Point ~380°C (716°F)
Hardness (Brinell) ~91 HB
Tensile Strength ~328-331 MPa
Primary Function Raw material, casting alloy
Main Applications Automotive, accessories, electronics, casting, white goods
Shelf Life Unlimited
GHS Signal Word Signal word not required (not dangerous)
UN Number Not regulated
Special Features High strength; Excellent castability; Dimensional stability; High wear resistance

SECTION 20: CRITICAL WARNINGS AND BEST PRACTICES

CRITICAL WARNINGS:

  1. Non-hazardous material but metal fume and dust generated during melting, welding or grinding are harmful to health.

  2. Not flammable (ingot). Flammable in dust form.

  3. Low melting point (~380°C) requires caution during processing.

  4. Copper content (0.7-1.3%) increases wear resistance but decreases ductility. This should be considered in design.

  5. Zamak 5 offers 10% more strength and hardness compared to Zamak 3. This makes it ideal for applications requiring more durable parts.

  6. Excellent castability allows production of complex and detailed parts.

  7. Plating performance: Performs well in plating, painting and chromating processes.

  8. Incompatibilities: Keep away from strong acids, strong alkalis, oxidizing agents and halogens.

  9. Hygiene Requirement: Wash hands thoroughly after use.

BEST PRACTICE RECOMMENDATIONS:

10. High-Pressure Die Casting:
Zamak 5 is highly suitable for high-pressure die casting applications. Ideal for producing complex, detailed and consistent parts.

11. Automotive Applications:
Choose Zamak 5 for durable and detailed parts. Suitable for carburetors, fuel pumps, brake systems and door locks.

12. Accessory Production:
Ideal for decorative and durable products. Use for door handles, window accessories and lamp bodies.

13. Electronics and Mechanical Hardware:
Suitable for electronic housings and mechanical parts. Preferred for computer cases, phone housings and electronic device bodies.

14. Plating Processes:
Performs well in plating, painting and chromating processes. Provides aesthetics and surface protection.

15. Use:
Use in well-ventilated areas; Avoid dust formation; Wear protective gloves, safety goggles and appropriate respiratory protection.

16. Personal Protective Equipment:
Use safety goggles, protective clothing, protective gloves (nitrile, neoprene), NIOSH approved dust mask (if dust is present).

17. Hygiene:
Do not eat, drink or smoke while using; Wash hands thoroughly after use; Do not take contaminated work clothes home.

18. Storage:
Store in cool, dry, well-ventilated area; Protect from moisture; Keep away from acids, alkalis and oxidizing agents.

19. Spill Response:
Avoid dust formation; Vacuum or sweep; Place in closed containers; Do not allow to enter drains or waterways.

20. Disposal:
Dispose in accordance with local, regional and national regulations; Zamak 5 is 100% recyclable; Recycle if possible.

ZAMAK 5 CASTING PARAMETERS:

Parameter Typical Value
Melting Temperature ~380°C
Casting Temperature 410-440°C
Mold Temperature 200-250°C
Injection Pressure 10-20 MPa
Cycle Time 5-15 seconds

ZAMAK 5 ALLOY SELECTION GUIDE:

Application Recommended Alloy Explanation
General purpose casting Zamak 3 Low cost, good mechanical properties
High strength requirements Zamak 5 10% more strength and hardness
Complex geometries Zamak 7 Superior fluidity
High temperature applications Zamak 5 Better high temperature properties
Wearing parts Zamak 5 High wear resistance with copper addition

SPECIAL NOTE ON MOLTEN METAL SAFETY:

Important points to consider in Zamak 5 melting and casting operations:

  • Temperature Control: Overheating may cause oxidation of the alloy

  • Water Contact: Molten metal contacting water causes violent steam explosion

  • Precaution: All equipment and molds must be dry

  • Fire Extinguishing: DO NOT USE WATER; Use dry chemical powder or sand

  • Heating: Controlled heating; Avoid overheating

LEGAL DISCLAIMER:

The information provided in this document is based on our current knowledge and experience and is provided in good faith; however, since all conditions of use are beyond our control, it does not constitute a binding specification or warranty. This Technical Data Sheet is for informational purposes only. Users are responsible for testing suitability for their own applications. For complete safety, storage, use, handling, disposal and regulatory compliance information, reference should be made to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier.

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