7075 aluminum tube processing composition and characteristics
7075 aluminum tube is a cold-treated forged alloy with high strength, far superior to mild steel. 7075 is one of the strongest alloys commercially available. Normal corrosion resistance, good mechanical properties and anodic reaction. The fine grains provide better deep drilling performance, enhanced tool wear resistance, and thread rolling more differentiated.
7075 aluminum tube processing characteristics
7075 aluminum tube is called ultra-high-strength aluminum alloy. The yield strength of the alloy is close to the tensile strength, the yield ratio is high, and the specific strength is also high, but the plasticity and high temperature strength are low. Structural parts, alloys are easy to process, have good corrosion resistance and high toughness. This alloy is widely used in aviation and aerospace and has become one of the most important structural materials in this field.
7075 aluminum tube chemical composition
Composition | 硅 Si | 铜 Cu | 镁 Mg | 锌 Zn | 锰 Mn | 钛 Ti | 铬 Cr | 铁 Fe |
content | 0.40 | 1.2～2.0 | 2.1～2.9 | 5.1～6.1 | ≤0.30 | ≤0.20 | 0.18～0.28 | 0.50 |
7075 aluminum tube product features
1. High strength heat treatable alloy.
2. Good mechanical properties.
3. Good usability.
4. Easy to process and good wear resistance.
5. Good corrosion resistance and oxidation resistance.
6061 aluminum tube introduces the use of ingredients
The main alloying elements in 6061 alloy are magnesium and silicon, which have medium strength, good corrosion resistance, weldability and good oxidation effect. It is widely used in various industrial structural parts that require certain strength and high antibacterial corrosion resistance. Alcoa 6061 has excellent processing performance, good corrosion resistance, high toughness, no deformation after processing, easy coloring, and excellent oxidation effect.
Basic introduction of 6061 aluminum tube
It can neutralize the bad effects of iron; sometimes a small amount of copper or zinc is added to increase the strength of the alloy without significantly reducing its corrosion resistance; there is also a small amount of copper in the conductive material to offset titanium and iron Adverse effects on electrical conductivity; zirconium or titanium can refine grains and control recrystallization structure; in order to improve machinability, lead and bismuth can be added. Mg2Si is solid-dissolved in aluminum, which makes the alloy have artificial aging hardening function. The main alloying elements in 6061 aluminum alloy are magnesium and silicon, which have medium strength, good corrosion resistance, weldability, and good oxidation effect.
It is an Al-Mg-Si alloy with medium strength, good plasticity and excellent corrosion resistance. In particular, it has no tendency to stress corrosion cracking, and has excellent weldability, corrosion resistance and cold workability. It is a promising alloy with a wide range of applications. It can be anodized and colored, or painted with enamel, which is suitable for building decoration materials. It contains a small amount of Cu, so the strength is higher than that of 6063, but the quenching sensitivity is also higher than that of 6063. After extrusion, air quenching cannot be achieved. It needs to be re-solution treated and quenched and aged to obtain higher strength.
6061 aluminum tube chemical composition
Composition | 硅Si | 铁Fe |
铜Cu
| 锰Mn |
镁Mg
|
铬Cr
|
锌Zn
| 钛Ti |
铝Al
|
content | 0.40-0.8 | 0.7 | 0.15-0.40 | 0.15
| 0.8-1.2 | 0.04-0.35
| 0.25 | 0.15 | margin |
Mechanical properties of 6061 aluminum tube
Tensile Strength 抗拉强度 σb (MPa)： | yield strength 屈服强度 σ0.2 (MPa)： | Elongation 伸长率 δ5 (%)：
| specimen size 试样尺寸：
|
≥180 | ≥110 | ≥14
| Diameter 直径≤150 |
6061 aluminum tube typical use
Various industrial structural parts with certain strength, weldability and high corrosion resistance are required, such as the manufacture of trucks, build-up buildings, ships, trams, furniture, mechanical parts, precision machining, and a wide range of industrial materials.
6063 Aluminum Tube Introduction Composition Characteristics Application
6063 aluminum alloy is widely used in the frame of building aluminum doors, windows and curtain walls. In order to ensure that doors and windows and curtain walls have high wind pressure resistance, assembly performance, corrosion resistance and decorative performance, the comprehensive performance requirements of aluminum alloy profiles are much higher than those of industrial Profile standard.
6063 aluminum tube introduction
① 6063 is a representative alloy for extrusion. Its strength is lower than that of 6061, and its extrudability is good. It can be used for shapes with complex cross-sectional shapes. It has good corrosion resistance and surface treatment.
② It is a low-alloyed Al-Mg-Si high-plastic alloy.
6063 aluminum tube chemical composition
铝 Al ： | 硅 Si ： | 铜 Cu ： | 镁Mg: | 锌 Zn： | 锰 Mn： | 钛 Ti ： | 铬 Cr： | 铁 Fe：
| |
0.20～0.60 | 0.10 | 0.45～0.9 | 0.10 | 0.10 | 0.10 | 0.10 | 0.35 |
6063 aluminum tube has many valuable features:
1. Strengthened by heat treatment, high impact toughness, insensitive to defects.
2. With good thermoplasticity, it can be extruded at high speed into complex, thin-walled, hollow profiles or forged into forgings with complex structure, wide quenching temperature range, low quenching sensitivity, after extrusion and forging demoulding, as long as The temperature is higher than the quenching temperature. It can be quenched by water spray or water penetration. Thin-walled parts (6 less than 3mm) can also be air quenched.
3. Excellent welding performance and corrosion resistance, no stress corrosion cracking tendency. Among the heat-treatable-strengthened aluminum alloys, Al-Mg-Si alloys are 6063 alloys that have no stress corrosion cracking phenomenon. 4. The surface after processing is very smooth and easy to anodize and color. The disadvantage is that if it is aged at room temperature for a period of time after quenching, it will adversely affect the strength (parking effect).
6063 aluminum tube application range
Within the composition range of 6063 aluminum alloy specified in the national standard GB/T3190, different values of chemical composition will result in different material properties. When the range of chemical composition is large, the performance difference will fluctuate within a large range. , so that the overall performance of the profile will be uncontrollable. Therefore, optimizing the chemical composition of 6063 aluminum alloy has become the most important part of producing high-quality aluminum alloy building profiles. The role of alloying elements and their influence on properties 6063 aluminum alloy is a heat-treatable strengthening alloy with moderate strength in the AL-Mg-Si system, Mg and Si are the main alloying elements, and the main work of optimizing the chemical composition is to determine the Mg and Si. Percentage
How to choose 6061 . 6063 . 7075 aluminum tube
6061 aluminum pipe and 6063 aluminum plate are both 6 series aluminum pipes. The composition of 6 series aluminum pipes is aluminum, magnesium, and silicon alloys. 7075 aluminum pipes belong to 7 series aluminum pipes, and their components are aluminum and zinc alloys.
6061 aluminum plate is required to have various industrial structures with certain strength, weldability and high corrosion resistance, such as pipes, rods and profiles for manufacturing trucks, tower buildings, ships, trams, furniture, mechanical parts, instrument processing, etc. , Plate. When the product will be welded or formed, where moderate to high tensile strength is required or corrosion resistance is a concern, and where complex shapes are extruded or where budgets are limited, aluminum 6061 will be a better choice.
6063 alloy aluminum plate is used for building profiles, irrigation pipes and extrusion materials for vehicles, benches, furniture, fences, etc. The hardness of 6061 is higher than that of 6063.
7075 aluminum plate is used to manufacture aircraft structures and other high-stress structural parts and molds that require high strength and strong corrosion resistance. 7075 is an aluminum alloy with zinc as the main alloying element, but sometimes a small amount of magnesium and copper are added. Among them, superhard aluminum alloys contain zinc, lead, magnesium and copper alloys, which are close to the hardness of steel, and can be strengthened by heat treatment. They are high-strength, heat-treatable alloys with ordinary corrosion resistance and good mechanical properties. The very high strength of aluminum 7075 is its main characteristic. Therefore, it will be more suitable when exceptionally high tensile strength is required, combined with a high strength-to-weight ratio and high fatigue resistance.
