1070 Aluminum Sheet Supplier – High-Purity Alloy For Electrical & Thermal Applications
Product Forms: Sheet, plate, coil, strip, foil
Temper：O, H12, H14, H16, H18, H22, H24, H26, H28, H112
Thickness：0.1mm – 500mm
Width: Up to 2650mm
Certification: ISO 9001, ASTM, RoHS, SGS/BV available
Trusted 1070 Aluminum Sheet Manufacturer & Supplier
As a professional 1070 aluminum sheet supplier, we manufacture ASTM B209 1070 aluminum sheet, plate, and coil for distributors, fabricators, and OEMs worldwide. 1070 is a 1xxx-series commercially pure aluminum with a minimum 99.7% aluminum content, the highest purity among standard industrial aluminum grades. It delivers maximum electrical conductivity (~62% IACS) and thermal conductivity (~230 W/(m·K)), with excellent formability and corrosion resistance. We supply tempers O through H28, thickness 0.1mm – 500mm, width up to 2650mm, in mill finish, anodized, and bright finish. Third-party inspection (SGS, BV) welcome. We provide mill test certificates and full traceability.
1070 aluminum sheet is a non-heat-treatable alloy strengthened by cold working. Its high purity makes it ideal for busbars, transformer windings, capacitor foil, heat exchangers, and precision electronic components. The alloy offers superior corrosion resistance and excellent weldability, with a soft, ductile structure suitable for deep drawing and complex forming. Compared to 1060, 1070 provides slightly higher conductivity and purity, making it the preferred choice for electrical power transmission and critical thermal management applications.
Products specification
| Item | Specification |
|---|---|
| Alloy | 1070 (UNS A91070) |
| Common Trade Names | 1070 Aluminum, AA1070, Alloy 1070 |
| Standards | ASTM B209, EN 573, GB/T 3880, JIS H4000 |
| Product Forms | Sheet, plate, coil, strip, foil |
| Temper | O, H12, H14, H16, H18, H22, H24, H26, H28, H112 |
| Thickness | 0.1mm – 500mm |
| Width | Up to 2650mm |
| Surface Finish | Mill finish, bright finish, anodized |
| Certification | ISO 9001, ASTM, RoHS, SGS/BV available |
| MOQ | 1 – 5 tons typical |
| Lead Time | 10 – 25 days (stock: 5 – 7 days) |
Aluminium 1070 chemical composition
| Element | Content (max %) |
|---|---|
| Aluminum (Al) | ≥ 99.70% |
| Silicon (Si) | ≤ 0.20 |
| Iron (Fe) | ≤ 0.25 |
| Copper (Cu) | ≤ 0.04 |
| Manganese (Mn) | ≤ 0.03 |
| Magnesium (Mg) | ≤ 0.03 |
| Zinc (Zn) | ≤ 0.04 |
| Titanium (Ti) | ≤ 0.03 |
| Vanadium (V) | ≤ 0.05 |
Mechanical Properties (Typical Values)
| Property | 1070-O | 1070-H14 | 1070-H18 |
|---|---|---|---|
| Tensile Strength | 70 – 85 MPa | 110 – 160 MPa | ≥ 160 MPa |
| Yield Strength | 22 – 28 MPa | ≥ 90 MPa | ≥ 130 MPa |
| Elongation | 30 – 40% | 6 – 12% | 3 – 4% |
| Hardness (HB) | ~24 | ~35 | ~45 |
Physical Properties
| Property | Value |
|---|---|
| Density | 2.70 g/cm³ |
| Melting Range | 645 – 655°C |
| Thermal Conductivity | ~230 W/(m·K) |
| Electrical Conductivity | ~62% IACS |
| Modulus of Elasticity | 69 GPa |
| Coefficient of Thermal Expansion | 23.6 µm/m·°C |
1070 vs 1060 vs 1050 – Grade Comparison & Selection Guide
| Comparison Factor | 1070 | 1060 | 1050 |
|---|---|---|---|
| Aluminum Content | ≥ 99.70% | ≥ 99.60% | ≥ 99.50% |
| Thermal Conductivity | ~238 W/(m·K) | ~234 W/(m·K) | ~231 W/(m·K) |
| Electrical Conductivity | ~63% IACS | ~62% IACS | ~61% IACS |
| Positioning | High-purity precision applications | General-purpose industrial pure aluminum | Cost-effective basic applications |
| Anodizing Quality | Mirror-grade, dense, and uniform | Excellent | Good |
| Typical Applications | High-end heat dissipation, precision electrical, EV batteries | Signage, decorative panels, heat sinks, cookware | Economy signage, decorative parts, deep-drawn components |
| Relative Price | Higher | Moderate | Economical |
Selection Guidance:
1070 – Choose when maximum thermal/electrical conductivity and surface quality are required
1060 – Choose for general industrial applications where cost-performance balance is prioritized
1050 – Choose for cost-sensitive applications with less demanding performance requirements
Fabrication & Processing Guide – Welding, Forming & Anodizing of 1070 Aluminum
| Process | Performance | Recommendation |
|---|---|---|
| Welding | Excellent | TIG/MIG with 4043 or 5356 filler; remove oxide before welding |
| Brazing | Good | Use low-temperature aluminum brazing alloys; avoid overheating |
| Anodizing | Excellent | Clear or dyed anodizing produces uniform, mirror-grade finish |
| Machining | Fair | Soft and gummy in O temper; use H14/H18 for better chip formation |
| Deep Drawing | Excellent | O temper recommended; use lubricant and controlled die clearance |
| Bending | Excellent | Minimum bend radius ~0.5–1× thickness in O temper |
| Corrosion Resistance | Excellent | Self-repairing oxide film; suitable for humid and outdoor environments |
Need technical guidance on temper selection or processing parameters? Our engineering team supports your procurement decision - contact us for a quote within 24 hours.
Technical Selection Guide – Matching 1070 to Your Application
| Application Requirement | Recommended Temper | Technical Rationale |
|---|---|---|
| Maximum electrical conductivity (busbars, windings) | O or H112 | Highest conductivity in annealed condition; cold work reduces IACS |
| Deep drawing/complex forming | O | Elongation 30–40%; prevents cracking in severe deformation |
| Structural rigidity with moderate forming | H14 / H24 | Tensile 110–160 MPa; balance of strength and ductility |
| Maximum stiffness/wear resistance | H18 | Tensile ≥160 MPa; minimal elongation for rigid panels |
| Anodized decorative finish | O or H14 | High purity yields dense, uniform oxide layer |
| Heat exchanger fins | O or H14 | Thermal conductivity ~238 W/(m·K) maximized in softer tempers |
Quality Inspection & Documentation
Every 1070 aluminum sheet shipment from our facility undergoes full quality verification before dispatch. As a professional 1070 aluminum sheet supplier, we provide complete inspection and documentation support for procurement teams.
- Chemical Composition Analysis – Spectrometer verification of ≥99.7% aluminum purity
- Mechanical Testing – Tensile, yield, elongation per ASTM B209
- Dimensional Inspection – Thickness, width, flatness measurement
- Surface Quality Inspection – Visual inspection for scratches, oil spots, defects
- Third-Party Inspection – SGS, BV, or customer-nominated inspectors welcome
- Documents Provided: Mill Test Certificate, chemical composition report, mechanical properties report, RoHS compliance
FAQ
Q1: What is 1070 aluminum?
1070 aluminum is a 1xxx-series commercially pure wrought aluminum with a minimum aluminum content of 99.70%. It offers the highest electrical conductivity (~63% IACS) and thermal conductivity (~238 W/(m·K)) among standard industrial grades, with excellent formability and anodizing quality.
Q2: What is 1050 grade aluminium?
1050 grade aluminium is a 1xxx-series commercially pure aluminum with a minimum aluminum content of 99.50%. It is the most economical of the 1050/1060/1070 series and offers good formability, corrosion resistance, and weldability for cost-sensitive applications.
Q3: What is aluminum 1060 used for?
Aluminum 1060 is used for signage, nameplates, building facades, heat exchanger fins, electrical components, kitchen utensils, chemical equipment linings, and general sheet metal fabrication.
Q4: What is the thermal conductivity of 1070 aluminum?
Approximately 238 W/(m·K) - the highest among the 1050/1060/1070 series. Ideal for high-performance heat exchangers and thermal management systems.
Q5: What is the MOQ for 1070 aluminum sheet?
Typically 1–5 tons depending on size and temper. Smaller quantities available for stock sizes.
Q6: What is the lead time?
Stock items: 5–7 days. Custom orders: 10–25 days depending on quantity and specification.
Q7: What is the difference between 1070 and 1060?
1070 has higher purity (99.70% vs 99.60%), providing slightly higher electrical and thermal conductivity. Both offer excellent formability and corrosion resistance.
Q8: Is 1070 suitable for anodizing?
Yes. Its high purity produces a dense, uniform oxide layer with excellent surface finish, ideal for decorative anodized applications.
Q9: Can 1070 be welded?
Yes. 1070 offers excellent weldability via TIG, MIG, and resistance welding. Recommended filler wires: 4043 or 5356.
Q10: What is the price of 1070 aluminum sheet?
Price depends on temper, thickness, quantity, surface finish, and market conditions. Contact us with specifications for a firm quote.
Get Your 1070 Aluminum Sheet Quote Today
Looking for a reliable 1070 aluminum sheet supplier? We provide competitive 1070 aluminum sheet prices and respond within 24 hours.
To get started, please provide:
- Alloy: 1070
- Temper: O, H14, H24, H18, etc.
- Thickness × Width × Length
- Quantity (tons or sheets)
- Surface finish and packaging requirements
Email:baohui@bhsteelpipe.com
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