7075 Aluminum Plate
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7075 Aluminum Plate

7075 aluminum plate belongs to Al Zn Mg Cu super hard aluminum, which is a strength deformed aluminum alloy. It is widely used in the keys, gears and other high stress components. It is often used as a substitute for 2024 aluminum because it is stronger and provides similar performance in all other respects.

7075 Aluminum Plate

Specification parameters of 7075 plate

Alloy 7075
Temper O, T6, T651, T62, T652, T76, T7651, T73, T7351
Thickness 1.0-300mm
Width 500-3000mm
Length 1000-12000mm
Tolerance Thickness: '+/-.012 to +/-.160 Depending on thickness
Width: '+.25 to +.3125 Depending on width and thickness
Length: '+.25 to +.5 Depending on length and thickness
Surface Polished, bright, paper interlaced, single-sided film, double-sided film
Density 0.102 lb/in3
Melting Point 890-1, 175 F
Hardness Brinell 150
Poissons Ratio 0.33
Authentication CE, ISO, SGS, AS9100
Standard ASTM, JIS, GB, DIN,EN, AMS-QQ-250/3, AMS-QQ-250/5

Chemical properties of 7075 plate

Chemical Composition Limits (WT %)

Silicon 0.4
Iron 0.5
Copper 1.2-2.0
Manganese 0.3
Magnesium 2.1-2.9
Chromium 0.18-0.28
Zinc 5.1-6.1
Titanium 0.2
Others, each 0.05
Others, total 0.15

7075 aluminum is composed of 90.0% Al, 5.6% Zn, 2.5%Mg, 0.23%Cr, and 1.6% Cu, though these numbers nominally fluctuate depending upon manufacturing factors.

Chemical Composition of 7075 aluminum plate

Density of 7075 aluminum is 2.81 g/cm3 (0.102 lb/in3), which is relatively light for a metal. 7075 aluminum alloy is one of the strongest aluminum alloys available, making it valuable in high-stress situations. The copper content of 7075 aluminum increases its susceptibility to corrosion, but this sacrifice is necessary to make such a strong-yet-workable material.

Mechanical properties of 7075 plate

Summary of Mechanical Properties for 7075 Aluminum Alloy

Mechanical Properties Metric
Ultimate Tensile Strength 572 MPa 83000 psi
Tensile Yield Strength 503 MPa 73000 psi
Shear Strength 331 MPa 48000 psi
Fatigue Strength 159 MPa 23000 psi
Modulus of Elasticity 71.7 GPa 10400 ksi
Shear Modulus 26.9 GPa 3900 ksi

The modulus of elasticity for 7075 aluminum is 71.7 GPa (10, 400 ksi), and it's shear modulus is 26.9 GPa (3900 ksi) . The measure of a material’s resistance to deformation is given by its modulus of elasticity and shear modulus. Generally, this alloy is strong and resists deformation well, which suits it for applications which need a tough-yet-light metal.

7075 aluminum alloy has a tensile yield strength of 503 MPa (83, 000 psi), which means it takes 503 MPa of stress on a piece of 7075 alloy before it cannot return to its original shape. This value shows the huge benefit of alloying aluminum, and why 7075 is the best choice for structural materials for frames.

7075 aluminum has an ultimate tensile strength of 572 MPa (83000 psi), which is impressively high considering its low density. Therefore, 7075 aluminum is usually used in high-risk applications such as military and skyscrapers.

Shear strength is the ability of a material to resist being sheared by opposing forces along a plane, just as a scissor cuts through paper. As the two scissor blades close, their opposing forces act on the cross sectional plane of the paper and cause it to fail “in shear”. This value is useful in torsional applications (shafts, bars etc.), where twisting can cause this kind of shearing stress on a material.

The fatigue strength of 7075 aluminum alloy is 159 MPa (23, 000 psi). Type 7075 aluminum is often used in the aerospace industry, which has increased concern for fatigue failure. A material can still fail, even though it experiences a force much less than its yield point. If this stress is cyclical, meaning that the material is periodically loaded with this force enough times, micro fractures can occur which weaken the material and will eventually cause it to break. The fatigue strength is a measure of a material’s ability to withstand this cyclical loading, and is useful for applications where a part created using this material is subject to repetitive loading cycles (such as in aircraft or motor vehicles).

Processing technology of 7075 plate

7075 aluminum alloy can be further improved by how it is strengthened using a process known as heat-treatment, sometimes referred to as “tempering.” This method uses high heat (300-500 ºC) to reconfigure the metal’s crystal structure to strengthen its overall mechanical properties, and can literally make-or-break a material. There are many methods of tempering 7075 aluminum, each tempering process gives 7075 aluminum its own distinct values and characteristics.

Heat treating

Heat treating of aluminum

7075 may be solution annealed at 900 Degrees F for 2 hours at temperature, followed by a water quench. The alloy may then be given a precipation hardening (aging) heat treatment.

Annealing

Annealing is done at 775 Degrees F, holding for 3 hours at temperature. Controlled cooling at 50F per hour should then be used down to 500F from which it can be air cooled.

Aging

Precipitation strengthening (aging) is done at 250 Degrees F for 24 hours and air cooled for T6. The T73 temper requires heating to 225 Degrees F for 8 hours, followed by 24 hours at 325 Degrees F and then air cool.

Application field of Chalco hot selling 7075 aluminum plate series

Application of 7075 O aluminum plate

7075 O aluminum is 7075 aluminum in the annealed condition. It has the lowest strength and highest ductility compared to the other variants of 7075 aluminum, and it has high corrosion resistance and good strength.

7075 O temper aluminum plate is commonly used in aerospace, military and automotive applications.

Application of 7075 T6 aluminum plate

7075 T6 aluminum is 7075 aluminum in the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. The hardness of 7075 T6 aluminum alloy is 150HB, which belongs to high hardness aluminum alloy. It has excellent mechanical properties, and exhibits good ductility, high strength, toughness and good fatigue resistance.

Application of 7075 T6 aluminum plate

  • Aerospace field: it is used to manufacture most parts of aircraft, gliders and aerospace vehicles.
  • Transportation tools: used for ship manufacturing, bicycle parts, etc.
  • Industry field: tool manufacturing, instrument gear, fuse parts, worm gear, key, regulating valve parts, etc.
  • Military applications: missile parts, upper and lower casings of rifles, extension tubes and precision rifles (such as M-16).

Application of 7075 T651 aluminum plate

7075 T651 aluminum alloy plate has the strongest tensile strength among aluminum alloys and the strongest hardness among the 7000 series aluminum alloys. 7075 T651 has high tensile strength, good fatigue strength, good machinability, resistance welding and corrosion resistance.

7075 T651 aluminum alloy plate is also a light material with semi smooth surface and polished surface. Chalco has polished 7075 T651 aluminum alloy plate, the surface is very bright.

  • It is mainly used for high-quality, high-performance and high-strength processing materials, and is the most suitable aluminum alloy for aerospace applications.
  • It can also be used for aircraft parts, gears, instrument shafts, mold manufacturing, turbines, etc.
  • It can be processed according to user specifications and applied to ships, motor sports and commercial grade parts.

Application of 7075 T6511 aluminum plate

7075-T6511 aluminum is 7075 aluminum in the T6511 temper. To achieve this temper, the metal is solution heat-treated, stress relieved, then artificially aged. The stress relief is accomplished by stretching the metal by an amount that depends on the type of standard wrought product being made (extrusion or tube). The metal is straightened after the stretching operation. It has the second highest strength compared to the other variants of 7075 aluminum.

Application of 7075 T7 aluminum plate

7075 T7 aluminum is 7075 aluminum in the T7 temper. To achieve this temper, the metal is solution heat-treated and stabilized by artificial overaging. It has the second highest ductility compared to the other variants of 7075 aluminum.

Application of 7075 T73 aluminum plate

Application of 7075 T73 aluminum plate

By comparison, T73 has lower strength, more flexibility, and provides a better product in extended high-stress environments. To reach this state, the material is heat-treated and aged to T6, but then they continue aging it. By overaging the material into the T73, it loses some strength but increases in durability. It is also more corrosion resistant. Toughness decreases along with temperature for aluminum 7075. And for this reason, T73 is better suited for extremely low-temperature applications such as cryogenics.

  • 7075 T73 is used for components that need to be more flexible or routinely undergo high and continual stress.
  • The base of the airplane wing is a typical example of the 7075 T73.
  • Gears, valve parts, shafts, and landing gear are more commonly made from 7075 T73.

Application of 7075 T7351 aluminum plate

7075 T7351 aluminum is 7075 aluminum in the T7351 temper. To achieve this temper, the metal is solution heat-treated, stress relieved, then stabilized by artificial overaging. T7351 temper provides improved resistance to stress corrosion cracking. This is an aircraft alloy with very high strength and excellent performance at low temperatures. It has good machinability and excellent finishing characteristics. It can be hardened by heat treatment and/or cold work. It has good machinability and hardness, and is not easy to weld and stress corrosion cracking.

  • T7351 is commonly used for aircraft manufacturing and other aerospace applications that do not require corrosion resistance.
  • 7075 T7351 aluminum alloy provides the highest strength of ordinary screw mechanical alloy.
  • The better stress corrosion resistance of T7351 tempering makes alloy 7075 a reasonable substitute for 2024, 2014 and 2017 in many of the most critical applications.

Characteristics of 7075 aluminum plate

  • 7000 series metal aluminum alloys mainly contain zinc. 7075 aluminum plate will not be deformed or warped after stress relief treatment. It is a kind of high strength heat treatable alloy.
  • 7075 is an aluminum alloy with high hardness and strength, which is commonly used in aircraft manufacturing. It has good plasticity after solution treatment. The strengthening effect of heat treatment is particularly good. The strength below 150℃ is high, especially at low temperature.
  • Good mechanical performance. 7075 alloy has good mechanical properties and anodic reactivity. It is a typical aluminum alloy material for aerospace.
  • 7075 aluminum plate has high thermal conductivity, which can shorten the forming time and improve the working efficiency.
  • 7075 aluminum plate has general corrosion resistance, and the improved corrosion resistance is usually obtained through clad parts.
  • Poor welding performance.

Weight calculation of 7075 aluminum plate

Weight calculation of aluminum plate: Length (mm) × Width (m) x Density 2.7g/cm3

7075 aluminum plate price

(LME ingot price+processing fee) x weight+packaging fee+transportation fee

Please contact Chalco aluminum to inquire about the processing cost per ton of aluminum plates of relevant models. The processing costs of 7075 aluminum plates of different sizes vary greatly. We offer you the best price.

7075 aluminum plate price

Chalco 7075 aluminum plate

Full specification supply

Chalco, as a professional manufacturer and seller of aluminum products, has a complete inventory of 7075 aluminum plates and provides 7075 aluminum products in T6, T7 and other tempers. Connect with downstream manufacturers of aircraft manufacturing, vehicle accessories and sports goods.

Professional production

The ultra wide and ultra thick 7075 aluminum alloy plates

  • The internal stress of Chalco 7075 ultra wide and ultra thick aluminum plate is eliminated, and the cutting is not deformed. The width can reach 2650mm and the thickness can reach 200mm. It is one of the few manufacturers that can produce ultra wide and ultra thick aluminum plates.
  • Chalco 7075 aluminum plate is rolled by advanced production technology of six high cold rolling mill, with better shape, higher precision and more stable performance.
  • The ultra wide and ultra thick 7075 aluminum alloy plates produced by Chalco have passed ultrasonic testing, which can effectively ensure that there are no sand holes and impurities.

Delivery and package

Delivery: 25 to 30 days after order confirmation

Package: In strong wooden pallets with strong steel hoops in all sides to withhold rough handling at port of export and port of imports.

Delivery and package

  1. 7075 aluminum plate can be packaged only after it is fully aged before packaging.
  2. 7075 aluminum plate shall be coated on the surface before packaging, mainly to prevent surface oxidation
  3. When packaging 7075 aluminum plate with thick cardboard, should handle it with care, pay attention not to scratch the surface.
  4. During transportation, a tarpaulin shall be attached outside to prevent rain during transportation.
  5. It should also be noted that when 7075 aluminum plates are placed in the warehouse, the warehouse should be kept dry. Blowers can be used if conditions permit, or moisture-proof agent can be placed.

Why choose Chalco

  • Years of experience in manufacture, stock & supply of 7075 aluminium plates
  • Best prices for 7075 aluminium plates - supplied worldwide with shortest delivery time
  • Exporting ASTM, EN standard compliant 7075 aluminium plate is our specialty
  • We can offer delivery to any port.
  • We provide following documents - Certificate of origin, invoice & PL attested by chamber of commerce, test certificates as per EN 10204 3.1, other testing reports, as may be required by our customers.
  • There will be complete marking on aluminium plates, and the details can be co-related to the test certificates.

complete marking on aluminium plates

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