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Product Overview
لوحة الألومنيوم 7075 is a high-strength aluminum-zinc (Al-Zn-Mg-Cu) alloy from the 7000 مسلسل, 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. ملكنا 7075 aluminum plates are manufactured per ASTM B209, جيجابايت/ت 3880, AMS 4045, and QQ-A-250/12, widely used in aerospace, defense, tooling, and high-performance structural applications.
التركيب الكيميائي (%), جيجابايت/ت 3190 & ASTM B209
ال (الألومنيوم): 87.1 – 91.4 (balance)
Zn (Zinc): 5.1 – 6.1 (principal alloying element)
ملغ (Magnesium): 2.1 – 2.9
النحاس (نحاس): 1.2 – 2.0
سجل تجاري (Chromium): 0.18 – 0.28
Fe (حديد): 0.5 max
و (السيليكون): 0.4 max
مينيسوتا (المنغنيز): 0.3 max
ل (Titanium): 0.2 max
Zr (Zirconium): 0.25 max (for 7075-T73 variants)
Others Each: 0.05 max, Others Total: 0.15 max
الخصائص الميكانيكية (Typical Values)
Temper T6 (Solution Heat Treated & Artificially Aged): قوة الشد 510-570 الآلام والكروب الذهنية, قوة الغلة 430-505 الآلام والكروب الذهنية, استطالة 8-11%
Temper T651 (T6 + Stress Relieved): قوة الشد 510-570 الآلام والكروب الذهنية, قوة الغلة 430-505 الآلام والكروب الذهنية, استطالة 8-11%
Temper T7351 (Overaged + Stress Relieved): قوة الشد 460-510 الآلام والكروب الذهنية, قوة الغلة 370-430 الآلام والكروب الذهنية, استطالة 8-12% (improved SCC resistance)
صلابة: 150-160 HB (T6/T651)
قوة التعب: 160 الآلام والكروب الذهنية (T6, at 5×10⁸ cycles)
قوة القص: 330 الآلام والكروب الذهنية (T6)
معامل المرونة: 71.7 المعدل التراكمي (10,400 ksi)
Specific Strength: One of the highest strength-to-weight ratios of any metal alloy
الخصائص الفيزيائية
كثافة: 2.81 g/cm³ (0.1015 lb/in³)
Melting Point: 477-635درجة مئوية (890-1175درجة فهرنهايت)
توصيل حراري: 130 W/(m·K) at 25°C (T6)
الموصلية الكهربائية: 32% IACS (T6)
Electrical Resistivity: 5.2 × 10⁻⁸ Ω·m
Thermal Expansion Coefficient: 23.6 × 10⁻⁶/K (20-100درجة مئوية)
معامل المرونة: 71.7 المعدل التراكمي (10,400 ksi)
Poisson Ratio: 0.33
Fatigue Endurance Limit: 160 الآلام والكروب الذهنية (T6)
Specifications
المعايير: ASTM B209, جيجابايت/ت 3880, جيجابايت/ت 3190, AMS 4045, QQ-A-250/12, في 485, JIS H4000
سماكة: 0.5 مم – 250 مم (0.02″ – 10″)
عرض: 500 مم – 2600 مم (custom slitting available)
طول: 500 مم – 12000 مم (custom cutting available)
حِدّة: ا, T6, T651, T7351, T7451
صقل الأسطح: Mill finish, Bright, Clad (Alclad 7075), Anodized, Coated
تسامح: سماكة: ±0.05mm (thin) to ±0.5mm (thick), Width/Length: ±1mm, Flatness: per ASTM B209
حافة: Sheared edge, sawn edge, or as per requirement
Special: Alclad 7075 available (with pure aluminum cladding for improved corrosion resistance)
Key Features & مزايا
- Extremely high strength – tensile strength up to 570 الآلام والكروب الذهنية, 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
التطبيقات
- 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 – التروس, 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)
- إلكترونيات – 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, ملغ, النحاس, 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 / جيجابايت/ت 3880
Documentation: Mill Test Certificate (MTC), heat treatment records, material traceability, conformity certificate
التعبئة والتغليف & شحن
التعبئة والتغليف: 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: سبيكة, حِدّة, مقاس, heat number, standard, manufacturer logo
Trade Terms: فوب, سيف, CFR, EXW, DDP
قسط: T/T (30% deposit, 70% before shipment), L/C at sight, Western Union, PayPal (sample orders)
مهلة: Standard sizes in stock – 3-7 أيام; Custom sizes – 15-30 أيام
موك: 500 kg for standard sizes; custom orders negotiable
Loading Port: Qingdao, Shanghai, Tianjin, Ningbo, or as requested
لماذا أخترتنا
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 بلدان. 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!
