What is 355 aluminum?
3.3547 aluminum is a rolled plate with moderate strength. However, there is a risk of stress corrosion cracking at temperatures above 70°C. It has good corrosion resistance and machinability.
3.3547 aluminum alloy is primarily used in the automotive industry and is an aluminum-silicon alloy. Its main features include excellent casting performance, good mechanical properties, and high corrosion resistance.
Features of 3.3547 Aluminum
- Main Characteristics: Moderate strength • Good machinability
- Casting Performance: Excellent fluidity and fillability, suitable for complex-shaped castings.
- Corrosion Resistance: Good corrosion resistance, suitable for use in harsh environments.
- Machinability: Can be precisely machined, suitable for manufacturing complex automotive components and mechanical parts.
3.3547 aluminium chemical composition
| Si | 0.40 |
| Fe | 0.40 |
| Cu | 0.10 |
| Mn | 0.40-1.00 |
| Mg | 4.00-4.90 |
| Cr | 0.05-0.25 |
| Zn | 0.25 |
| Ti | 0.15 |
3.3547 aluminium mechanical properties
| Property | Value |
| Yield Strength [MPa] | 200 |
| Ultimate Tensile Strength [MPa] | 275 - 350 |
| Elongation [%] | 14 |
| Hardness | 75 |
3.3547 aluminium physical properties
| Property | Value |
| Density [g/cm³] | 2.66 |
| Module of Elasticity [GPa] | 72 |
| Electrical Conductivity [m/Ω · mm²] | 16 - 19 |
| Coefficient of Thermal Expansion [K⁻¹ · 10⁻⁶] | 25 |
| Thermal Conductivity [W/m · K] | 120 |
| Specific Heat Capacity [J/kg · K] | 900 |
Heat Treatment and Processing of 3.3547 Aluminum
- Casting: Suitable for various casting methods, including high-pressure casting, low-pressure casting, etc.
- Machining: Good machinability, suitable for turning, milling, drilling, and other machining processes.
- At high temperatures, the strength and hardness of 3.3547 aluminum alloy may decrease, so this should be considered during design.
The aluminum alloy surface may require additional surface treatments to enhance its corrosion resistance and wear resistance, such as anodizing.
This aluminum alloy is widely used in the automotive industry, effectively improving the performance and durability of automotive components.
3.3547 aluminium alternative designations
EN AW-5083 | Al-Mg4, 5Mn (ISO) | AA5083 (ANSI/AA) | N8 (BS) | A-G4, 5MC (AFNOR) | L-3321 (UNE) | A95083 (UNS) | A5083 (JIS) | GM4I(D54S) (CSA) | 4140 (SIS)
| EU EN | USA - | Germany DIN, WNr | Japan JIS | France AFNOR | England BS | Italy UNI | Sweden SS | Poland PN | Czechia CSN | Austria ONORM | Russia GOST | Inter ISO |
| ENAW-AlMg4.5Mn0.7 | A95083 |
3.3547 AlMg4.5 AlMg4.5Mn |
5082 | 5183 | 5083 | P-AlMg4.4 | AlMg4.5Mn | AlMg4.5Mn | 424415 | AlMg4.5Mn | AMg4.5 | AlMg4.5Mn0.7 |