铝合金其他

产品描述
7075-T651 铝挤压型材是一种高强度结构铝型材,采用热挤压工艺制造,并经热处理至 T651 状态。作为市面上强度最高的铝合金之一,7075 铝合金是需要最大强度重量比、优异抗疲劳性和卓越加工性能的应用的首选。 T651 状态是通过固溶热处理、通过控制拉伸(1-3% 永久变形)消除应力以及人工时效实现的,从而确保了优异的尺寸稳定性,并在后续加工过程中最大限度地减少变形。 7075-T651挤压型材广泛应用于航空航天结构件、国防装备、高性能运动器材、机器人和精密机械等领域,可根据客户图纸和规格提供标准轧制型材(槽钢、角钢、管材、T型管、Z型管)或完全定制的型材。 ⚠ 重要提示:由于锌含量高,7075的挤压性能有限。与6xxx系列(例如6061)相比,7075的挤压型材仅限于更简单的截面、更小的外接圆直径和更短的长度。对于复杂的型材,通常建议使用6061。 制造标准: - ASTM B221(铝及铝合金挤压棒材、线材、型材和管材的标准规范) - AMS 4154(航空航天材料规范 - 7075-T6/T651 挤压件) - EN 755 / EN 12020(欧洲标准) - EN 573-3(化学成分)
尺寸范围
- Up to ~200mm (limited by 7075 extrudability)
牌号标准
| 标准体系 | 数值 |
|---|---|
| Solid Bar | Up to ~200mm (limited by 7075 extrudability) |
| Hollow Tube | Up to ~200mm (limited by 7075 extrudability),≥ 1.0mm (minimum) |
| Channel | customization as per drawing |
| Angle | customization |
| I/H-Section | 10 - 5000 mm² (typical) |
| Custom Profile | Custom die per drawing |
| Material | 7075 Aluminum Alloy |
| Temper | T651 |
| 🇺🇸 UNS | A97075 |
| Product Form | Extruded Section |
| Standard | ASTM B221 / AMS 4169 |
化学成分
| 元素 | 数值 |
|---|---|
| Al | Balance (87.1 - 91.4) |
| Zn | 5.10 - 6.10 |
| Mg | 2.10 - 2.90 |
| Cu | 1.20 - 2.00 |
| Cr | 0.18 - 0.28 |
| Fe | ≤ 0.50 |
| Si | ≤ 0.40 |
| Mn | ≤ 0.30 |
| Ti | ≤ 0.20 |
| Other (Each) | ≤ 0.05 |
| Other (Total) | ≤ 0.15 |
机械性能
| 性能 | 数值 |
|---|---|
| Tensile Strength | ≥ 540 |
| Tensile Strength(0.2% Offset) | ≥ 460 |
| Elongation | ≥ 6 |
| Hardness, Brinell | 150HB |
物理性能
| 性能 | 单位 | 数值 |
|---|---|---|
| Density | - | 2.81g/cm³ |
应用场景
- Aerospace:Aircraft seat tracks, structural stiffeners, fuselage frames, wing ribs, helicopter rotor components,aerospace structural components
- Defense equipment:Weapon mounts, armor parts, military vehicle structural components
- Aircraft parts:Tooling rails, jigs, fixtures, assembly jigs
- Automotive (Racing):Roll cage tubing, chassis reinforcements, suspension links
- Robotics:Robot arm links, structural frames, motion components
- Sports Equipment:Bicycle frames, climbing equipment, archery risers, ski poles
- Marine (with coating):Mast sections, structural supports (requires protective coating)
- Industrial Machinery:High-stress machine parts, gear blanks, drive shafts
- Optical & Precision:Telescope mounts, instrument frames, optical bench components
- Semiconductor:Equipment frames, precision motion stages
- Precision machinery
- High strength frames

