PROGRESUL
Product Overview
Placa de aluminiu 7075 is a high-strength aluminum-zinc (Al-Zn-Mg-Cu) alloy from the 7000 series, one of the strongest aluminum alloys commercially available. With zinc and magnesium as principal alloying elements and copper for additional strength, 7075 achieves tensile strength comparable to many steels while weighing only one-third as much. It is solution heat treated and artificially aged to T6 or T651 temper for maximum strength. Our 7075 aluminum plates are manufactured per ASTM B209, GB/T 3880, AMS 4045, and QQ-A-250/12, widely used in aerospace, defense, tooling, and high-performance structural applications.
Compoziție chimică (%), GB/T 3190 & ASTM B209
Al (Aluminiu): 87.1 – 91.4 (balance)
Zn (Zinc): 5.1 – 6.1 (principal alloying element)
Mg (Magnesium): 2.1 – 2.9
Cu (Cupru): 1.2 – 2.0
Cr (Chromium): 0.18 – 0.28
Fe (Iron): 0.5 max
Si (Silicon): 0.4 max
Mn (Manganese): 0.3 max
De (Titanium): 0.2 max
Zr (Zirconium): 0.25 max (for 7075-T73 variants)
Others Each: 0.05 max, Others Total: 0.15 max
Mechanical Properties (Typical Values)
Temper T6 (Solution Heat Treated & Artificially Aged): Tensile Strength 510-570 MPa, Yield Strength 430-505 MPa, Elongation 8-11%
Temper T651 (T6 + Stress Relieved): Tensile Strength 510-570 MPa, Yield Strength 430-505 MPa, Elongation 8-11%
Temper T7351 (Overaged + Stress Relieved): Tensile Strength 460-510 MPa, Yield Strength 370-430 MPa, Elongation 8-12% (improved SCC resistance)
Hardness: 150-160 HB (T6/T651)
Fatigue Strength: 160 MPa (T6, at 5×10⁸ cycles)
Shear Strength: 330 MPa (T6)
Modulus of Elasticity: 71.7 GPa (10,400 ksi)
Specific Strength: One of the highest strength-to-weight ratios of any metal alloy
Physical Properties
Density: 2.81 g/cm³ (0.1015 lb/in³)
Melting Point: 477-635°C (890-1175°F)
Thermal Conductivity: 130 W/(m·K) at 25°C (T6)
Electrical Conductivity: 32% IACS (T6)
Electrical Resistivity: 5.2 × 10⁻⁸ Ω·m
Thermal Expansion Coefficient: 23.6 × 10⁻⁶/K (20-100°C)
Modulus of Elasticity: 71.7 GPa (10,400 ksi)
Poisson Ratio: 0.33
Fatigue Endurance Limit: 160 MPa (T6)
Specifications
Standards: ASTM B209, GB/T 3880, GB/T 3190, AMS 4045, QQ-A-250/12, ÎN 485, JIS H4000
Grosime: 0.5 mm – 250 mm (0.02″ – 10″)
Lăţime: 500 mm – 2600 mm (custom slitting available)
Lungime: 500 mm – 12000 mm (custom cutting available)
Temper: O, T6, T651, T7351, T7451
Surface Finish: Mill finish, Bright, Clad (Alclad 7075), Anodized, Coated
Toleranţă: Grosime: ±0.05mm (thin) to ±0.5mm (thick), Width/Length: ±1mm, Flatness: per ASTM B209
Margine: Sheared edge, sawn edge, or as per requirement
Special: Alclad 7075 available (with pure aluminum cladding for improved corrosion resistance)
Key Features & Avantaje
- Extremely high strength – tensile strength up to 570 MPa, comparable to structural steel
- Outstanding strength-to-weight ratio – the benchmark for aerospace structural alloys
- Heat treatable – T6/T651 temper provides maximum mechanical properties
- Good fatigue resistance – excellent for cyclic loading applications
- Excellent machinability in T6 condition – ideal for precision machining
- Good response to anodizing – hard anodizing for wear resistance
- Alclad option available for enhanced corrosion protection
- Consistent properties – solution heat treated, stress relieved, and artificially aged
- Proven performance – the most widely used alloy in aerospace structures
- Readily available in plate form with full traceability documentation
Applications
- Aerospace – aircraft structural components, fuselage frames, wing spars, bulkheads
- Aerospace – helicopter rotors, missile components, satellite structures
- Defense and military – armor plates, weapons systems, vehicle components
- Tooling and molds – injection molds, blow molds, mold bases, jigs and fixtures
- Precision machinery – gears, shafts, valve components, high-stress parts
- Automotive racing – suspension components, chassis parts, drive shafts
- Sports equipment – high-performance bicycle frames, climbing equipment
- Marine engineering – high-strength structures (with protective coating)
- Electronică – high-strength enclosures, structural frames
- General engineering – high-strength structural applications where weight matters
Quality Control & Testing
Every batch of our 7075 aluminum plates undergoes strict quality control:
Chemical Analysis: Spectrometer verification of Zn, Mg, Cu, Cr content
Heat Treatment Verification: Conductivity testing, hardness testing to verify T6/T651 treatment
Mechanical Testing: Tensile test, yield strength test, elongation test per temper
Corrosion Testing: Stress corrosion cracking (SCC) test per ASTM G47, exfoliation corrosion test per ASTM G34
Ultrasonic Testing: UT inspection per AMS 2630 for aerospace applications
Surface Inspection: Visual inspection for scratches, pits, and defects
Flatness Check: Flatness tolerance per ASTM B209 / GB/T 3880
Documentation: Mill Test Certificate (MTC), heat treatment records, material traceability, conformity certificate
Ambalare & Transport
Ambalare: Standard export packaging – plates stacked with protective paper between sheets, wrapped in waterproof kraft paper and plastic film, wooden pallets or crates, steel strapping, corner protection; protective film on request
Marking: Alloy, temper, dimensiune, heat number, standard, manufacturer logo
Trade Terms: Fob, CIF, CFR, EXW, DDP
Plată: T/T (30% deposit, 70% before shipment), L/C at sight, Western Union, PayPal (sample orders)
Perioada de graţie: Standard sizes in stock – 3-7 zile; Custom sizes – 15-30 zile
MOQ: 500 kg for standard sizes; custom orders negotiable
Loading Port: Qingdao, Shanghai, Tianjin, Ningbo, or as requested
De ce să ne alegeți
With over 15 years of experience in aluminum manufacturing and export, we are a trusted supplier of 7075 aluminum plates to aerospace, defense, and precision engineering companies in more than 50 țări. Our factory is equipped with advanced rolling, heat treatment, and testing lines, ensuring aerospace-grade quality and consistency. We maintain large inventory of standard sizes and tempers for immediate delivery, and our experienced team can provide technical consultation, material certification support, and customized solutions for your specific applications. Contact us today for a competitive quote!
