3105 aluminium sheet3105 aluminum alloy belongs to the Al-Mn series of rust-proof aluminum. Its core features are medium strength, excellent corrosion resistance and good processing formability. It is widely used in lightweight structural parts that are cost-sensitive and require rust pr
3105 aluminum alloy belongs to the Al-Mn series of rust-proof aluminum. Its core features are medium strength, excellent corrosion resistance and good processing formability. It is widely used in lightweight structural parts that are cost-sensitive and require rust prevention, such as packaging, decoration, heat dissipation components, etc.
1. It offers excellent corrosion resistance and is stable in air, fresh water, and weakly acidic and alkaline environments. It also exhibits strong resistance to stress corrosion cracking, surpassing 2-series and 7-series duralumin.
2. Strength can be flexibly adjusted through cold working, 20% higher than 1000 series aluminum, making it suitable for diverse load scenarios.
3. It also offers outstanding forming and weldability, supporting TIG/MIG welding, with 80% weld strength retention.
4. It offers balanced electrical and thermal conductivity. Adding 0.3% Cu achieves an electrical conductivity of 41% IACS and a thermal conductivity of 180 W/(m・K), making it suitable for low- to medium-power heat dissipation and general electrical needs.
5. It is of lightweight and low cost, 5%-10% cheaper than 3003 aluminum, making it suitable for large-scale, low-cost applications.
6. The surface treatment effect is very good, easy to color, painted or anodized, and the decorative effect and corrosion resistance are improved simultaneously.
Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Alu | Other each | Other total |
0.6 | 0.7 | 0.30 | 0.30-0.8 | 0.20-0.8 | 0.20 | 0.40 | 0.1 | Remainder | 0.05 | 0.15 |
Tempers | Strength | Elongation | Applications | Processing Craft |
O | Low | 16-20% | Deep stamping parts, food packaging | annealing + cold rolling |
H14 | Medium | 2-4% | architectural decoration, electronic brackets | 50% cold working |
H18 | High | 1-2% | High strength structural parts, pressure vessels | 75% cold working |
H24 | Medium to high | 3-5% | Precision housings, complex molding parts | cold working + partial annealing |
Specifications
Alloy | Thickness(mm) | Width(mm) | Length(mm) |
3105 | 1-500 | 100-2650 | 500-16000 |
Plain sheet
Plain sheet with a PVC coating on one side
Aluminum closure sheet
Coated aluminum sheet
Residential siding, mobile homes,etc.
Road Signs & Signage
HVAC
Lamp holder materials
Blinds materials
Bottle cap material
Pipe insulation
Items | 3105 aluminum alloy | 3003 aluminum |
Mn content | 0.8-1.4% | 1.0-1.5% |
Tensile strength(h14) | 180-220MPa | 170-210 MPa |
Elongation(O) | 25% min | 25% min |
Cost | Relatively low | A little high |
Core advantages | More cost-effective, slightly better strength | More stable plasticity, suitable for high-precision forming |
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