Additive Tablet, Master Alloy Tablet, Mn, Fe, Ti, Cr, 7429-90-5, 7439-96-5, 7439-89-6, 7440-32-6, 7440-47-3

ADDITIVE TABLETS (Mn, Fe, Ti, Cr) TECHNICAL DATA SHEET (TDS)

Product Group: Additive Tablets (Mn, Fe, Ti, Cr)
Product Type: Master alloy tablets for controlled addition of specific elements to aluminum alloys
Primary Use: Precise alloy composition adjustment, mechanical and chemical property improvement, production convenience

SECTION 1: PRODUCT DESCRIPTION

PRODUCT DESCRIPTION AND EXPLANATION:

This product group consists of master alloy tablets specifically designed for the controlled addition of specific elements to aluminum alloys. These tablets provide a convenient, precise, and homogeneous method for introducing alloying elements into aluminum melts.

The tablet form offers significant advantages over traditional master alloy forms. Tablets ensure precise dosage, homogeneous distribution, and reduced dust formation during handling. They are designed for easy addition to molten aluminum, with controlled dissolution rates that ensure consistent alloy composition. The standardized tablet size and composition allow for accurate weight-based dosing, eliminating the need for complex weighing and handling procedures.

These additive tablets are available in four main element groups: Manganese (Mn), Iron (Fe), Titanium (Ti), and Chromium (Cr). Each element group is available in multiple grades with different element contents (75-85%) and binder types (F - Flux type, AL - Aluminum-based type). The tablets are designed to dissolve efficiently in aluminum melts at typical melting temperatures (600-650°C), ensuring rapid and homogeneous distribution of the alloying element.

SECTION 2: PRODUCT VARIANTS

PRODUCT VARIANTS EXPLANATION:

Each element group is available in multiple grades to suit different application requirements:

Element Content Grades:

• 75% - Standard grade with 75% active element content

• 80% - High grade with 80% active element content

• 85% - Premium grade with 85% active element content

Binder Types:

• F (Flux Type): Contains fluxing agents that promote rapid dissolution and help clean the melt. Ideal for standard foundry applications.

• AL (Aluminum-Based Type): Uses aluminum as the binder matrix. Provides maximum compatibility with aluminum melts and is suitable for applications where flux residues are undesirable.

SECTION 3: CHEMICAL COMPOSITION (TYPICAL)

CHEMICAL COMPOSITION EXPLANATION:

Each tablet contains 75-85% of the active alloying element, with the balance consisting of aluminum (as binder or matrix) and, in the case of F grades, fluxing agents. The high active element content ensures efficient alloying with minimal addition of binder materials. The composition is precisely controlled to provide consistent and predictable alloying results.

CAS Numbers for reference:

• Aluminum (Al): 7429-90-5

• Manganese (Mn): 7439-96-5

• Iron (Fe): 7439-89-6

• Titanium (Ti): 7440-32-6

• Chromium (Cr): 7440-47-3

SECTION 4: PHYSICAL PROPERTIES

PHYSICAL PROPERTIES EXPLANATION:

The tablets are produced in standardized sizes to ensure accurate weight-based dosing. Density varies depending on the active element content (Mn: ~7.4 g/cm³, Fe: ~7.9 g/cm³, Ti: ~4.5 g/cm³, Cr: ~7.2 g/cm³, with aluminum binder at ~2.7 g/cm³). The melting point of the tablets is designed to be compatible with standard aluminum melting temperatures (600-650°C), ensuring rapid dissolution and homogeneous mixing.

The tablet form reduces dust formation during handling, improves workplace safety, and ensures clean, accurate addition to the melt.

SECTION 5: APPLICATION AREAS

APPLICATION AREAS EXPLANATION:

Alloy Composition Adjustment: The tablets allow precise, controlled addition of alloying elements to achieve target compositions in aluminum alloys. The tablet form enables accurate weight-based dosing, eliminating weighing errors.

Mechanical Property Improvement:

• Manganese (Mn): Improves strength and corrosion resistance, especially in Al-Mn (3xxx) series alloys

• Iron (Fe): Increases strength and hardness, reduces hot tearing

• Titanium (Ti): Acts as a grain refiner, improves mechanical properties

• Chromium (Cr): Enhances hardness, wear resistance, and corrosion resistance

Automotive, Aerospace, Construction: Widely used across these industries for producing high-quality aluminum components with precise alloy compositions.

SECTION 6: STORAGE AND TRANSPORT

STORAGE AND TRANSPORT EXPLANATION:

Additive tablets should be stored in a dry and cool environment, protected from moisture and direct sunlight. Moisture can cause degradation of the tablets and affect their dissolution behavior. Tablets should not be exposed to water or high humidity. Under proper storage conditions, shelf life is unlimited. Packaging should be kept sealed until use to prevent moisture absorption. During transport, the tablets should be protected from moisture and physical damage.

SECTION 7: SAFETY INFORMATION

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: Adequate ventilation should be provided 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.

• Special Notes: Chromium and titanium tablets may form compounds during melting; ensure proper ventilation.

SECTION 8: ELEMENT-SPECIFIC NOTES

ELEMENT-SPECIFIC NOTES EXPLANATION:

Manganese: Manganese is added to aluminum alloys to improve strength and corrosion resistance. It is the primary alloying element in 3xxx series alloys (such as 3003 and 3004). Manganese provides solid solution strengthening and improves work hardening properties.

Iron: Iron is added to aluminum alloys to increase strength and hardness. It helps reduce hot tearing in castings. However, iron content must be controlled as excess iron forms brittle intermetallic phases (such as Al₃Fe, Al₅FeSi) that reduce ductility.

Titanium: Titanium is one of the most effective grain refiners for aluminum alloys. Very small additions (0.01-0.05%) are sufficient to produce significant grain refinement, improving mechanical properties and reducing hot cracking.

Chromium: Chromium is added to aluminum alloys to improve hardness, wear resistance, and corrosion resistance. It forms fine dispersoids (CrAl₇, CrAl₄) that contribute to dispersion strengthening and improve high-temperature properties.

SECTION 9: SUMMARY AND CRITICAL NOTES

SUMMARY:

Additive Tablets (Mn, Fe, Ti, Cr) are master alloy tablets designed for the controlled addition of specific elements to aluminum alloys. Available in four element groups with multiple grades (75-85% active element content, F and AL binder types), these tablets provide precise, convenient, and homogeneous alloying.

The tablet form offers significant advantages: precise dosing, homogeneous distribution, reduced dust formation, and ease of handling. Applications include alloy composition adjustment, mechanical property improvement, corrosion resistance enhancement, and grain refinement across automotive, aerospace, construction, and general industrial production.

Store in dry and cool environment, protected from moisture. 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.

Basic Properties:

Available Grades:

Main Application Areas:

Key Safety Points:

• NOT HAZARDOUS: Not hazardous under normal use

• DUST RISK: Avoid inhalation of dust

• MELTING: Ensure adequate ventilation during melting operations

• MOISTURE: Protect tablets from moisture

• PPE: Gloves, safety goggles, dust mask should be used

• STORAGE: Store in dry, cool environment away from direct sunlight

CRITICAL NOTES:

1. Tablet Form Advantages: The tablet form provides precise dosing, homogeneous distribution, reduced dust formation, and ease of handling compared to traditional master alloy forms. Standardized tablet size and weight enable accurate, repeatable dosing without complex weighing procedures.

2. Flux Type vs. Aluminum-Based Type:

   • F (Flux Type): Contains fluxing agents that promote rapid dissolution and melt cleaning. Ideal for standard foundry applications where flux residues can be removed.

   • AL (Aluminum-Based Type): Uses aluminum as the binder matrix. Provides maximum compatibility with aluminum melts and is suitable for applications where flux residues are undesirable.

3. Element Content Grades: Available in 75%, 80%, and 85% active element content. Higher element content grades offer more efficient alloying with less binder material addition.

4. Moisture Sensitivity: Additive tablets are sensitive to moisture, which can cause degradation and affect dissolution behavior. Store in sealed containers and protect from water and high humidity.

5. Element Selection: Select the appropriate element based on the desired alloy properties:

   • Mn: Strength and corrosion resistance (3xxx series)

   • Fe: Strength, hardness, and hot tearing reduction

   • Ti: Grain refinement (effective at 0.01-0.05%)

   • Cr: Hardness, wear resistance, and corrosion resistance

6. Aluminum Dust Safety: Aluminum dust generated during handling and processing can be explosive. Avoid dust formation 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 Additive Tablets.