AlMn Manganese Aluminium Master Alloy, AlMn10, AlMn20, AlMn30, 7439-96-5, 7429-90-5, 7440-21-3, 7439-89-6, 7440-02-0, 7440-50-8

AlMn Manganese Aluminium Master Alloy, AlMn10, AlMn20, AlMn30, 7439-96-5, 7429-90-5, 7440-21-3, 7439-89-6, 7440-02-0, 7440-50-8

MANGANESE-ADDED ALUMINUM MASTER ALLOY (AlMn)
ALMN MANGANESE ALUMINIUM MASTER ALLOY / COIL / STICK / WAFFLE
1. PRODUCT IDENTIFICATION AND CHEMICAL IDENTITY

2. CHEMICAL STRUCTURE
2.1. Molecular Structure
Manganese-Added Aluminum master alloy consists of manganese phases homogeneously distributed within an aluminum matrix. Manganese dissolves in aluminum or forms Al₆Mn intermetallic phases, increasing the alloy's mechanical strength, corrosion resistance, and recrystallization control. It also functions as a grain stabilizer and iron neutralizer, improving alloy cleanliness and performance.

Structural Features:

                MANGANESE-ADDED ALUMINUM MASTER ALLOY (AlMn)
                          |
                Al Matrix + Mn Phases / Al₆Mn
                          |
        +----------------+----------------+
        |                |                |
    Al₆Mn Phase       Grain            Iron
    (Strength)       Stabilizer      Neutralizer

2.2. Structural Properties

3. COMMERCIAL VARIANTS AND COMPOSITIONS

3.1. AlMn Master Alloy Variants

3.2. Typical Impurity Limits (All Variants)

4. PHYSICAL AND CHEMICAL PROPERTIES

5. STABILITY AND REACTIVITY

5.1. Chemical Reactions

• Oxidation (at High Temperature):
  4Al + 3O₂ → 2Al₂O₃
  2Mn + O₂ → 2MnO
  Mn + O₂ → MnO₂

• Reaction with Acids:
  2Al + 6HCl → 2AlCl₃ + 3H₂↑
  Mn + 2HCl → MnCl₂ + H₂↑

6. APPLICATION AREAS
6.1. Manganese Source in Aluminum Alloys

6.2. Sectoral Applications

6.3. Sectoral Suitability Table

7. STANDARDS AND COMPLIANCE

8. ALTERNATIVE / SUBSTITUTE PRODUCTS

9. SAFETY AND TOXICOLOGY

9.1. GHS Classification

Signal Word: WARNING

Hazard Pictograms: GHS02 (Flame), GHS07 (Exclamation Mark)

10. STORAGE AND SHELF LIFE

11. PACKAGING OPTIONS

12. TRANSPORT INFORMATION

13. REGULATORY STATUS

14. OTHER NAMES AND SYNONYMS

15. QUICK REFERENCE TABLE

16. CRITICAL WARNINGS AND BEST PRACTICES

CRITICAL WARNINGS:

• Manganese Addition: AlMn master alloy provides mechanical strength, corrosion resistance, and recrystallization control in aluminum alloys. It is a critical additive especially in 3xxx series alloys.

• Iron Neutralization: Manganese neutralizes iron impurities in the alloy, reducing their negative effects and improving alloy quality.

• Quality and Origin: Phase stability and impurity control are critical for corrosion resistance and mechanical performance. 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.

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 Mn 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 manganese 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. Manganese-Added Aluminum master alloy is a critical additive material for corrosion resistance and mechanical strength in the aluminum industry; correct variant selection and application conditions directly affect final alloy performance.