AA 4004 Aluminum Alloy
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Семейство: Aluminum Alloy
Silicon Alloy (Al-Si). AA designation 4004.
Overview
AA 4004 is an aluminium–silicon–magnesium brazing alloy (9–10.2% Si, 1.0–2.0% Mg) used as a filler for vacuum and controlled-atmosphere brazing of aluminium assemblies. Its high silicon content lowers the melting point to form a eutectic that flows into tight joints at brazing temperature. This makes it a standard cladding and filler in automotive heat exchangers, HVAC systems, and aerospace brazed assemblies.
Рейтинги характеристик
Performance Radar
| Свойство | Rating |
|---|---|
| Strength | 3 / 10 |
| Corrosion Res. | 6 / 10 |
| Lightweight | 9 / 10 |
| Machinability | 8 / 10 |
| Affordability | 7 / 10 |
| Heat Res. | 4 / 10 |
Состав
Механические свойства
| Предел прочности на растяжение | 189.0 MPa |
| Относительное удлинение | 4.5% |
| Твёрдость (по Роквеллу) |
Химический состав
| Элемент | Процентное содержание (%) |
|---|---|
| Al | 88,47 |
| Fe | 0,22 |
| Mg | 1,47 |
| Si | 9,84 |
Где купить AA 4004 Aluminum Alloy
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Описание
AA 4004 is an aluminum-silicon-magnesium brazing alloy (9–10.2% Si, 1.0–2.0% Mg) designed as a filler material for vacuum and controlled-atmosphere brazing of aluminum assemblies. The high silicon content lowers the melting point to form a eutectic that flows into tight joints at brazing temperatures. It is used in the manufacture of automotive heat exchangers, HVAC systems, and aerospace brazed assemblies.