360.0 Aluminum
An Al-Si-Mg die casting alloy, corrosion resistant
Typical values for the temper in the title
360 is a die casting alloy with about 9.5% silicon and about half a percent magnesium, and almost no copper. Compared with A380, it is more corrosion resistant, pressure tight and stronger when hot. As cast, its tensile strength is about 320 MPa.
The drawback: it is harder to cast than A380. So it is chosen when the part is exposed to the environment or heat, such as outdoor enclosures, marine parts and small engine housings.
Mechanical and physical properties
| Property | Value | Note |
|---|---|---|
| Tensile strength Rm | 320 MPa | |
| Yield strength Rp0.2 | 170 MPa | |
| Elongation A | 3% | |
| Hardness | 75 HB | |
| Modulus of elasticity E | 71 GPa | |
| Density ρ | 2.63 g/cm³ | |
| Machinability | 70% | relative rating in the site database |
Chemical composition (wt %)
| Element | Range | Role |
|---|---|---|
| Si silicon | 9.0–10.0 | fluidity |
| Mg magnesium | 0.40–0.6 | strengthening |
| Fe iron | max 2.0 (A360.0: max 1.3) | prevents soldering to the die |
| Cu copper | max 0.6 | little, for corrosion resistance |
| Zn zinc | max 0.50 | |
| Mn manganese | max 0.35 | |
| Al aluminum | balance |
Common tempers
360 is sold in the F (as-die-cast) condition.
| Temper | Properties | When to choose it |
|---|---|---|
| F | Rm ≈ 320 MPa, Rp0.2 ≈ 170 MPa | as die cast |
Applications
- Outdoor enclosures
- Marine castings
- Small engine housings
- Pressure-tight parts
- Exposed vehicle components
Fabrication
Casting
Harder than A380: needs better process control.
Corrosion
More resistant than A380, thanks to its low copper.
Welding and heat treatment
Like all high-pressure die castings, not suited to welding or heat treatment.
Compared with similar materials
| Material | Rm / Rp0.2 | Welding | When it is the better choice |
|---|---|---|---|
| A380.0 | 317 / 159 MPa | Not possible (HPDC) | easier to cast and cheaper, less corrosion resistant · material page |
| 413.0 | 290 / 145 MPa | Not possible | more fluid, for thin parts · material page |
| A356.0-T6 | 262 / 186 MPa | Good — ER4043 | for sand and mold casting, with heat treatment · material page |
Common mistakes
Choosing A380 for an exposed outdoor part
A380 is less corrosion resistant. For an exposed part, 360.
Sending it for heat treatment
A high-pressure die casting may blister.
Welding
Trapped gas creates porosity.
Equivalents, standards and supply
| ASTM | 360.0 / A360.0 (ASTM B85) |
|---|---|
| JIS | ADC3 |
| Standards | ASTM B85 / EN 1706 |
| Forms | die casting (HPDC) |
| Producers | Ryobi · Shiloh · Nemak |
Learn more
Values are typical and for comparison only. For design, rely on the standard and on the mill certificate. Sources: Aluminum Association (composition), ASM and MatWeb data sheets, and the METAL HUB materials database.
Updated: October 31, 2026