D19 (Д19)
D19 Aluminium: High-Strength Alloy for Heavy-Duty Applications
D19 aluminium is a high-strength, heat-treatable alloy primarily developed for aerospace and defense applications where a combination of strength, toughness, and durability under high stress is required. It offers excellent mechanical properties, moderate corrosion resistance, and good machinability when properly treated. The alloy is typically used in forgings, structural components, and critical load-bearing parts that must perform reliably in demanding environments. Commonly supplied in plate, bar, and extruded forms, D19 aluminium provides a solid balance between lightweight performance and high yield strength, making it ideal for aircraft frames, landing gear fittings, and precision-engineered components.
What is D19 Aluminium?
D19 aluminium (also known as AC D19) is an alloy belonging to the 2000 series of aluminium alloys, which are known for their high strength and resistance to fatigue. It is heat-treatable and typically alloyed with copper and magnesium, making it ideal for high-load applications. D19 is widely used in components like automotive chassis, suspension arms, and high-performance tooling
It is specified for parts operating at elevated temperatures (around +200-250 °C) and combines good strength with moderate high-temperature capabilities.
D19 is a wrought aluminium-copper alloy from the Russian / CIS standards, used especially in aerospace and heat-resistant structural applications.
- • Heat-treatable alloy (quenched + aged) giving flexibility in fabrication.
- • Fair machinability and ability to be formed (in proper condition) for structural parts.
Characteristics for Grade D19 (Д19)
| Parameter | Details |
|---|---|
| Grade | D19 (Д19) (1190) |
| Classification | Aluminium wrought alloys |
| Equivalent Grades | Is absent |
Chemical composition (%) for grade D19 (Д19)
| Fe | Si | Mn | Ti | Al | Cu | Be | Mg | Zn | Impurity |
|---|---|---|---|---|---|---|---|---|---|
| max 0.5 | max 0.5 | 0.5 - 1 | max 0.1 | 91.095 - 94 | 3.8 - 4.3 | 0.0002 - 0.005 | 1.7 - 2.3 | max 0.1 | other, each 0.05; all 0.1 |
Comment: Al is a basis; the percentage of Al is approximate.
Mechanical properties at 20°C for grade D19 (Д19)
| Assortment | Dimension | Direction | σв (MPa) | σT (MPa) | δ5 (%) | ψ (%) | KCU (kJ/m²) | Heat treatment |
|---|---|---|---|---|---|---|---|---|
| Profile | - | - | 460 | 340 | 12 | - | - | - |
| Plate, GOST 17232-99 | - | - | 345-420 | 245-275 | 3-7 | - | - | Hardening and ageing |
Physical properties for grade D19 (Д19)
| T (°C) | E (MPa) | 1/Grade | λ (W/m·°C) | ρ (kg/m³) | C (J/kg·°C) | R (Ω·m) |
|---|---|---|---|---|---|---|
| 20 | 0.7 | - | - | 2760 | - | 61 |
| 100 | - | 20.3 | 138 | - | 880 | - |
Applications of D19 Aluminium
Due to its exceptional strength and machinability, D19 aluminium is widely used in industries that demand high-performance materials, including:
Automotive: Chassis, suspension arms, and engine components requiring high strength and durability.
Aerospace: Structural components exposed to high-stress conditions, such as aircraft parts.
Industrial: Tooling, jigs, and machine bases used in manufacturing processes.
Heavy Engineering: Parts for heavy-load applications, such as press frames and rig structures.
Key Benefits of D19 Aluminium
High Strength-to-Weight Ratio: Ideal for applications where both strength and lightweight materials are required.
Fatigue Resistance: D19 aluminium has excellent resistance to fatigue, making it ideal for high-load components.
Machinability: Offers superior machinability, which is critical for precision manufacturing.
Heat Treatment: Can be heat-treated to enhance mechanical properties for specific applications.
Why Choose Russian Metals for D19 Aluminium?
At Russian Metals, we offer premium D19 aluminium in various forms, including sheets, plates, and custom sizes. We ensure that all our products meet the highest quality standards, and our team provides expert guidance on selecting the right materials for your project.
Certified Stock & Custom Sizes: We provide D19 aluminium in stock and can customize it to meet your specific requirements.
Precision Cutting & Machining: Our services include precision cutting and machining of D19 aluminium to your exact specifications.
Fast & Reliable Delivery: We ensure timely delivery across India, ensuring that your projects stay on schedule.
Contact Us for D19 Aluminum Orders
For more information or to place an order, contact Russian Metals today. We specialize in providing the best quality GOST D19 aluminum at competitive prices for industrial, defense, and aerospace applications.