AA 2219 Aluminum Alloy
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กลุ่ม: Aluminum Alloy
Copper Alloy (Al-Cu). AA designation 2219.
Overview
Notable for keeping strength and toughness across an extreme temperature span, AA 2219 is a high-purity aluminium–copper alloy (5.8–6.8% Cu) with manganese, zirconium, and titanium additions. It performs from about −270°C to 315°C and, unlike most 2xxx alloys, is readily weldable. Those qualities have made it a standard for rocket fuel tanks, aircraft skin, and structural components that must operate at cryogenic or elevated temperatures.
การให้คะแนนประสิทธิภาพ
Performance Radar
| สมบัติ | Rating |
|---|---|
| Strength | 5 / 10 |
| Corrosion Res. | 6 / 10 |
| Lightweight | 9 / 10 |
| Machinability | 8 / 10 |
| Affordability | 7 / 10 |
| Heat Res. | 4 / 10 |
องค์ประกอบ
สมบัติทางกล
| ความแข็งแรงแรงดึง | 403.0 MPa |
| ความแข็งแรงจุดคราก | 274.6 MPa |
| การยืดตัว | 10.5% |
| ความแข็ง (ร็อกเวลล์) |
องค์ประกอบทางเคมี
| ธาตุ | เปอร์เซ็นต์ (%) |
|---|---|
| V | 0.09 |
| Al | 93.474 |
| Cr | 0.14 |
| Cu | 6.3 |
| Fe | 0.2 |
| Mg | 0.02 |
| Mn | 0.3 |
| Ni | 0.03 |
| Pb | 0.01 |
| Sc | 0.4 |
| Si | 0.2 |
| Ti | 0.06 |
| Zn | 0.04 |
| Zr | 0.175 |
ซื้อได้ที่ไหน AA 2219 Aluminum Alloy
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คำอธิบาย
AA 2219 is a high-purity aluminum-copper alloy (5.8–6.8% Cu) with additions of manganese, zirconium, and titanium, known for exceptional performance at both elevated temperatures and cryogenic conditions. It maintains strength and toughness from −270°C to 315°C and is weldable unlike most 2xxx alloys. Primary applications include rocket fuel tanks, aircraft skin, and structural components operating at extreme temperatures.