ความคืบหน้า
Product Overview
แผ่นอลูมิเนียม 7075 is a high-strength aluminum-zinc (Al-Zn-Mg-Cu) alloy from the 7000 ชุด, 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. ของเรา 7075 aluminum plates are manufactured per ASTM B209, กิกะไบต์/ที 3880, AMS 4045, and QQ-A-250/12, widely used in aerospace, defense, tooling, and high-performance structural applications.
องค์ประกอบทางเคมี (%), กิกะไบต์/ที 3190 & มาตรฐาน ASTM B209
Al (อลูมิเนียม): 87.1 – 91.4 (balance)
Zn (Zinc): 5.1 – 6.1 (principal alloying element)
Mg (Magnesium): 2.1 – 2.9
ลูกบาศ์ก (ทองแดง): 1.2 – 2.0
Cr (Chromium): 0.18 – 0.28
เฟ (เหล็ก): 0.5 max
และ (Silicon): 0.4 max
มน (แมงกานีส): 0.3 max
ของ (Titanium): 0.2 max
Zr (Zirconium): 0.25 max (for 7075-T73 variants)
Others Each: 0.05 max, Others Total: 0.15 max
คุณสมบัติทางกล (Typical Values)
Temper T6 (Solution Heat Treated & Artificially Aged): ความต้านแรงดึง 510-570 MPa, ความแข็งแรงของผลผลิต 430-505 MPa, การยืดตัว 8-11%
Temper T651 (T6 + Stress Relieved): ความต้านแรงดึง 510-570 MPa, ความแข็งแรงของผลผลิต 430-505 MPa, การยืดตัว 8-11%
Temper T7351 (Overaged + Stress Relieved): ความต้านแรงดึง 460-510 MPa, ความแข็งแรงของผลผลิต 370-430 MPa, การยืดตัว 8-12% (improved SCC resistance)
ความแข็ง: 150-160 HB (T6/T651)
Fatigue Strength: 160 MPa (T6, at 5×10⁸ cycles)
Shear Strength: 330 MPa (T6)
โมดูลัสความยืดหยุ่น: 71.7 เกรดเฉลี่ย (10,400 ksi)
Specific Strength: One of the highest strength-to-weight ratios of any metal alloy
คุณสมบัติทางกายภาพ
ความหนาแน่น: 2.81 g/cm³ (0.1015 lb/in³)
Melting Point: 477-635องศาเซลเซียส (890-1175°F)
การนำความร้อน: 130 W/(m·K) at 25°C (T6)
การนำไฟฟ้า: 32% IACS (T6)
Electrical Resistivity: 5.2 × 10⁻⁸ Ω·m
Thermal Expansion Coefficient: 23.6 × 10⁻⁶/K (20-100องศาเซลเซียส)
โมดูลัสความยืดหยุ่น: 71.7 เกรดเฉลี่ย (10,400 ksi)
Poisson Ratio: 0.33
Fatigue Endurance Limit: 160 MPa (T6)
Specifications
Standards: มาตรฐาน ASTM B209, กิกะไบต์/ที 3880, กิกะไบต์/ที 3190, AMS 4045, QQ-A-250/12, ใน 485, JIS H4000
ความหนา: 0.5 มม – 250 มม (0.02″ – 10″)
ความกว้าง: 500 มม – 2600 มม (custom slitting available)
ความยาว: 500 มม – 12000 มม (custom cutting available)
อารมณ์: O, T6, T651, T7351, T7451
Surface Finish: Mill finish, Bright, Clad (Alclad 7075), Anodized, Coated
ความอดทน: ความหนา: ±0.05mm (thin) to ±0.5mm (thick), Width/Length: ±1mm, Flatness: per ASTM B209
ขอบ: Sheared edge, sawn edge, or as per requirement
Special: Alclad 7075 available (with pure aluminum cladding for improved corrosion resistance)
Key Features & ข้อดี
- 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
การใช้งาน
- 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 – เกียร์, 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)
- อิเล็กทรอนิกส์ – 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, ลูกบาศ์ก, 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 / กิกะไบต์/ที 3880
Documentation: Mill Test Certificate (MTC), heat treatment records, material traceability, conformity certificate
Packaging & การส่งสินค้า
Packaging: 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: อัลลอย, temper, ขนาด, heat number, standard, manufacturer logo
Trade Terms: โกง, ซีไอเอฟ, ซีเอฟอาร์, EXW, DDP
การชำระเงิน: T/T (30% deposit, 70% before shipment), L/C at sight, Western Union, PayPal (sample orders)
Lead Time: Standard sizes in stock – 3-7 วัน; Custom sizes – 15-30 วัน
ขั้นต่ำ: 500 kg for standard sizes; custom orders negotiable
Loading Port: Qingdao, Shanghai, Tianjin, Ningbo, or as requested
ทำไมถึงเลือกพวกเรา
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 countries. 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!
