Folha de dados técnicos abrangente: 1050 Círculo de Alumínio

1. Material Definition & Padrões

O 1050 aluminum circle is a round blank manufactured by stamping or shearing from 1050 aluminum sheet or coil. This grade belongs to the 1xxx series of industrial pure aluminum as per standards like GB/T 3880, with a minimum aluminum content of 99.5%. Due to its high purity, this material exhibits exceptional plastic formability and excellent corrosion resistance, making it a primary choice for complex forming processes such as deep drawing and spinning.

2. Composição Química Central & Características Metalúrgicas

Its primary chemical composition is Aluminum (Al) ≥ 99.5%, with strictly controlled impurities: Ferro (Fé) ≤ 0.40%, Silício (E) ≤ 0.25%, and other trace elements (Cu, Mn, mg, Zn each ≤ 0.05%). This high-purity composition results in the following metallurgical traits:

• High Plasticity: A pure crystalline structure with low resistance to dislocation movement allows for severe cold deformation without cracking.
• Excelente Térmica & Condutividade Elétrica: Second only to higher purity grades like 1060/1070, with a thermal conductivity of 222 C/(m·K), making it ideal for heat transfer applications.
• Superior Anodizing Response: Homogeneous composition facilitates the formation of a uniform, denso, and easily colorable anodic oxide layer.

3. Físico & Propriedades Mecânicas

• Propriedades Físicas: Densidade: 2.71 g/cm³, Ponto de fusão: ~660°C, Condutividade Elétrica: ~61% IACS.
• Propriedades Mecânicas (Temper Dependent):
  • Temperamento O (Recozido): Baixa resistência ao escoamento, maior alongamento (typically ≥ 30%), representing the optimal condition for deep drawing operations.
  • Temper H14 (Meio difícil): Endurecido por tensão, offering higher strength (Tensile Strength ~100-130 MPa) and moderate formability, suitable for shallow-formed parts requiring some rigidity.

4. Analysis of Primary Application Fields

Its applications are logically derived from its core properties:

• Fabricação de panelas (Aplicação Primária): Leverages its alta condutividade térmicae drawability profundo superior​ for producing pot bodies, panelas internas de panela de pressão, e panelas internas de panela de arroz. After anodizing or coating with non-stick composites, it meets requirements for safety, durabilidade, and cooking efficiency.
• Iluminação & Refletores: Benefits from its alta refletividadee excellent anodizing response, making it widely used for LED lamp covers, reflector housings, and luminaire shells. Surface treatment can achieve reflectivity over 80%.
• Traffic Signs & Plates: Utilizes its good atmospheric corrosion resistance, adequate strength, e ease of sheet metal fabrication, making it an ideal substrate for traffic signs and road plates.
• Eletrônicos & Ferragens Gerais: Commonly used for heat sinks, capacitor cases, and other stamped parts requiring electrical/thermal conductivity or specific forming characteristics.

5. Selection Advantages & Análise Comparativa

Compared to other common aluminum circle grades, 1050 offers the best balance between performance and cost:

6. Key Quality Control Parameters

Professional procurement and incoming inspection should focus on:

• Tolerâncias Dimensionais: Tolerância de espessura (por exemplo, ±0,05 mm), Tolerância de diâmetro.
• Propriedades Mecânicas: Alongamento​ is the key indicator for predicting deep drawability; O temper material should typically be ≥ 30%.
• Formability Indicators: Valor de ganho; a lower value indicates less edge waviness after drawing, signifying lower material anisotropy.
• Microestrutura & Superfície: Uniformidade granulométrica; surface must be free of scratches, marcas de rolo, e manchas de óleo.
• Padrões Aplicáveis: ASTM B209, EM 485-2, GB/T 3880.1, etc..

7. Selection Guide Summary

O 1050 aluminum circle has established dominance in industries like cookware, iluminação, and signage due to its unmatched deep drawability, excelente condutividade térmica/elétrica, superb surface treatment potential, and significant cost-effectiveness. For material selection:

• Para extreme deep drawing or spinning operations, Temperamento O​ 1050 aluminum circle is the primary choice.
• For parts requiring some structural rigidity​ with shallow forming, Temper H14 or H24​ can be selected.
• For cookware requiring high-temperature brazing, its melting point limitation must be considered, ensuring compatibility with coatings or composite bases.

Amidst trends towards lightweight manufacturing and the green circular economy, 1050 círculo de alumínio, as a high-performance, fully recyclable engineering material, continues to have broad application prospects.