In the research and development of high-end aluminum forgings, the choice of materials directly determines the upper limit of the part’s performance. Lao Wang Forging Company has conducted a detailed practical comparison of four of the most common grades of materials.
”Old Wang the Forging” believes that the core advantage of forgings over CNC machined parts lies in their “fiber-like flow lines.” Through pressure processing, the grains are elongated and aligned along the deformation direction, a structure that enhances the material’s toughness and impact resistance.
Material analysis and strength comparison材料分析和强度比较
”Old Wang the Forging” summarized the T6 state properties of the four materials as follows:
| Material grade | Tensile strength (MPa) | Yield strength (MPa) | Hardness (HB) | Typical characteristics |
| 6061 | 310 | 276 | 95 | It has a good overall performance and good weldability. |
| 6063 | 240 | 210 | 73 | Optimal anodizing effect, high plasticity |
| 6082 | 310-340 | 260-300 | 95 | The 6 series is the strongest, with excellent corrosion resistance. |
| 7075 | 510-570 | 430-500 | 150 | Ultra-high strength, the first choice for aerospace-grade stress resistance. |
Get Old Wang the Forging’s material selection plan得到老王锻件的选材计划得到老王锻件的选材计划
Advantages and disadvantages of forgings vs. CNC machining锻件与数控加工的优缺点锻件与数控加工的优缺点锻件与数控加工的优缺点锻件与数控加工的优缺点
Advantages: High fatigue strength of forgings, less material waste, and low cost in large-scale production.
Disadvantages: Forging is difficult to directly form extremely complex internal cavity structures, and usually requires a combination of “forging pre-forming + CNC finishing”.
Key application areas and material selection logic关键应用领域和材料选择逻辑
“Old Wang the Forging” provides specific application suggestions based on the stringent requirements of different industries:老王锻工根据不同行业的严格要求，提供具体的应用建议：
New energy vehicle chassis: 6082 is the preferred choice. It has higher strength and better salt spray corrosion resistance than 6061, and is becoming the industry standard for steering knuckles in EV platforms新能源汽车底盘：6082为首选。与6061相比，它具有更高的强度和更好的耐盐雾腐蚀性能，正在成为电动汽车平台转向节的行业标准
Consumer Electronics & Architectural Finishes: We recommend 6063. Its excellent surface finish response meets the color and tactile requirements of mobile phone frames or high-end architectural casings.消费电子和建筑饰面：我们推荐6063。其优异的表面光洁度响应，满足手机框架或高端建筑外壳的色彩和触感要求。
Aerospace and heavy-duty machinery: 7075 is required. Its tensile strength is almost twice that of the 6 series, meeting the ultimate performance requirements of landing gear and high-stress structural components.航空航天和重型机械：要求7075。其抗拉强度几乎是6系的两倍，满足起落架和高应力结构部件的极限性能要求。
For general structural components：6061 remains the most cost-effective option, especially performing well in scenarios requiring post-welding assembly.对于一般结构部件：6061仍然是最具成本效益的选择，特别是在需要焊接后组装的场景中表现良好。
Xinpingfu, leveraging over 20 years of practical experience from “Old Wang the Forging”, not only provides high-quality aluminum forgings but also dedicates itself to tailoring material selection and forming solutions for each client. Old Wang the Forging firmly believes that understanding the science behind materials is key to achieving a balance between lightweighting and low cost.
