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Send EmailAlMn 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
1. Full Product Name
AlMn – Manganese-Enriched Aluminum Master Alloy Variants:
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AlMn10
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AlMn20
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AlMn30
2. CAS Numbers
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Manganese (Mn): 7439-96-5
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Aluminum (Al): 7429-90-5
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Silicon (Si): 7440-21-3
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Iron (Fe): 7439-89-6
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Nickel (Ni): 7440-02-0
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Copper (Cu): 7440-50-8
Note: AlMn master alloys do not have a unique CAS number; component CAS numbers are listed.
3. Technical Specifications
| Property | Value / Range |
|---|---|
| Mn Content | 9% – 32% |
| Impurities (Si/Fe/Ni/Cu) | Typically < 0.3% total |
| Physical Forms | Coil (Wire), Stick (Rod), Waffle Ingot |
| Density | ~2.7 g/cm³ (Al matrix) |
| Melting Point | ~660 °C |
| Packaging | Crate-protected waffle ingots, boxed coils/sticks, vacuum-sealed optional |
4. Detailed Application Areas
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Used to introduce manganese into aluminum alloys for improved mechanical properties.
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Enhances strength, corrosion resistance, and recrystallization control.
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Common in AlMn series alloys (e.g., 3xxx series) and AlMgMn systems.
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Applied in:
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Automotive heat exchangers, beverage cans, roofing sheets, structural profiles
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Marine-grade aluminum, architectural panels, rolled products
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Manganese acts as a grain stabilizer and iron neutralizer, improving alloy cleanliness and performance.
5. Mandatory Use Cases
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Required in 3xxx series aluminum alloys for corrosion resistance and mechanical strength.
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Food packaging (e.g., can stock) and marine applications demand Mn addition for durability.
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Compliance with standards such as EN 573, ASTM B209, JIS H4000 may necessitate AlMn master alloy usage.
6. Sectoral Compatibility Table
| Sector | Compatibility | Notes |
|---|---|---|
| Automotive | ✅ | Used in heat exchangers and body panels |
| Aerospace | ⚠️ | Limited use in non-structural components |
| Construction | ✅ | Roofing, cladding, and structural sheets |
| Food Packaging | ✅ | Essential for beverage can alloys |
| Marine Industry | ✅ | Applied in corrosion-resistant aluminum grades |
| Electronics | ⚠️ | Used in select thermal and structural alloys |
7. Alternative Names
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AlMn Master Alloy
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AlMn10 / AlMn20 / AlMn30
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Manganese Aluminum Modifier
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Mn-Enriched Aluminum Alloy
8. Common Trade Names / Informal Terms
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Manganese-rich aluminum alloy
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AlMn waffle
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AlMn additive
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Mn alloying block
9. Production Details
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Manufacturing Process: Manganese is alloyed into molten aluminum under controlled conditions to form a homogeneous master alloy.
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Producing Countries: China, Germany, India, Türkiye
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True Producers vs. Traders: Direct producers ensure consistent Mn content and phase uniformity. Trader-sourced products may vary in purity and origin.
Note: Phase stability and impurity control are critical for corrosion resistance and mechanical performance.
