1070 aluminum alloy (Al99.7) is a commercially pure aluminum grade containing at least 99.7% aluminum. As a non-heat-treatable 1000-series alloy, it offers excellent electrical conductivity (up to 62% IACS), outstanding corrosion resistance, high thermal conductivity, and superior formability for cold working processes. Linsy supplies 1070 aluminum sheet, plate, coil, bar, tube, and wire in tempers O, H12, H14, H16, H18, and H112, with custom dimensions, surface finishing options, and MTC reports available for every order.
Dostępne formularze: sheet / plate / coil / bar / tube / wire
Typowe temperamenty: O / H12 / H14 / H16 / H18 / H112
Wsparcie w zakresie przetwarzania: CNC machining / laser cutting / stamping & deep drawing / anodizing / polishing
Dokumenty dotyczące jakości: Do każdego zamówienia dołączany jest raport MTC; raporty z badań SGS dostępne są na żądanie
1070 aluminum alloy (UNS A91070, EN AW-1070A / Al99.7) is a commercially pure aluminum grade containing at least 99.7% aluminum, making it one of the highest-purity grades in the 1000 series. Since its primary constituent is aluminum with only trace amounts of other elements, 1070 cannot be strengthened by heat treatment — instead, strength improvements are achieved through cold working (strain hardening).
With electrical conductivity reaching approximately 62% IACS in the annealed (O) temper and outstanding corrosion resistance in atmospheric, freshwater, and most chemical environments, 1070 aluminum is the material of choice for electrical conductors, chemical process equipment, heat exchangers, and applications where purity and conductivity take priority over mechanical strength. It also exhibits excellent formability, making it ideal for deep drawing, stamping, spinning, and roll-bonding operations.
1070 aluminum is supplied under international standards including ASTM B209 (sheet & plate), ASTM B210 (drawn seamless tube), ASTM B211 (bar, rod & wire), ISO 6361-2, and EN 573-3.
Linsy supplies 1070 aluminum in the standard product forms listed below. Length, width, and dimensional tolerances can be customized to your project requirements. For non-standard sizes or tempers, contact us for a custom quotation with a typical lead time of 10–60 days.
| Formularz | Temperament | Grubość (mm) | Szerokość (mm) | Długość (mm) |
|---|---|---|---|---|
| 1070 Sheet / Coil | O, H12, H14, H16, H18, H112 | 0.3 – 6.0 | 500 – 2600 | 500 – 16000 |
| Formularz | Temperament | Grubość (mm) | Szerokość (mm) | Długość (mm) |
|---|---|---|---|---|
| 1070 Plate | O, H112 | 6.0 – 100 | 500 – 2600 | 500 – 12000 |
| Formularz | Temperament | Średnica (mm) | Długość (mm) |
|---|---|---|---|
| 1070 Bar | O, H12, H14, H16, H18, H112 | 3 – 300 | 1000 – 6000 |
| Formularz | Temperament | Średnica zewnętrzna (mm) | Grubość ścianki (mm) | Długość (mm) |
|---|---|---|---|---|
| 1070 Tube | O, H12, H14, H16, H18, H112 | 6 – 300 | 1 – 50 | 1000 – 6000 |
| Formularz | Temperament | Średnica (mm) | Masa / Krąg |
|---|---|---|---|
| 1070 Wire | O, H12, H14, H16, H18 | 0.8 – 30 | Co najmniej 50 kg |
Dimensions can be customized. Contact us for your specific requirements.
| Standard | Oznaczenie |
|---|---|
| UNS | A91070 |
| EN (europejski) | EN AW-1070A / Al99.7 |
| AA (Stowarzyszenie Aluminium) | 1070 |
| JIS (Japanese) | A1070 |
| ISO | Al 99.7 |
| GB (Chinese) | 1070 |
| Product Form | ASTM | EN / ISO |
|---|---|---|
| Blacha i płyta | ASTM B209 | EN 573-3, ISO 6361-2 |
| Bar, Rod & Wire | ASTM B211 | EN 573-3, ISO 6361-2 |
| Drawn Seamless Tube | ASTM B210 | EN 573-3, ISO 6361-2 |
| Extruded Products | ASTM B221 | EN 755-2 |
| Element | Min (%) | Maks. (%) |
|---|---|---|
| Aluminium (Al) | 99.70 | — |
| Silicon + Iron (Si + Fe) | — | 0.20 |
| Krzem (Si) | — | 0.20 |
| Żelazo (Fe) | — | 0.25 |
| Miedź (Cu) | — | 0.04 |
| Mangan (Mn) | — | 0.03 |
| Magnez (Mg) | — | 0.03 |
| Cynk (Zn) | — | 0.07 |
| Tytan (Ti) | — | 0.03 |
| Wanad (V) | — | 0.05 |
| Inne (każde) | — | 0.03 |
Composition per EN 573-3. Single element values are maximum unless a range is shown. Aluminum percentage is the balance.
As a non-heat-treatable alloy, 1070 aluminum gains strength exclusively through cold working. The table below shows the mechanical property ranges for each commonly supplied temper.
| Nieruchomość | Wartość |
|---|---|
| Wytrzymałość na rozciąganie | 60 – 90 MPa |
| Wytrzymałość na rozciąganie | ≥ 20 MPa |
| Wydłużenie | ≥ 25% |
| Twardość (Brinell) | ~19 HB |
| Przewodność elektryczna | ~62% IACS |
| Nieruchomość | Wartość |
|---|---|
| Wytrzymałość na rozciąganie | 80 – 120 MPa |
| Wytrzymałość na rozciąganie | ≥ 55 MPa |
| Wydłużenie | ≥ 6% |
| Nieruchomość | Wartość |
|---|---|
| Wytrzymałość na rozciąganie | 95 – 135 MPa |
| Wytrzymałość na rozciąganie | ≥ 70 MPa |
| Wydłużenie | ≥ 5% |
| Nieruchomość | Wartość |
|---|---|
| Wytrzymałość na rozciąganie | 110 – 155 MPa |
| Wytrzymałość na rozciąganie | ≥ 90 MPa |
| Wydłużenie | ≥ 3% |
| Nieruchomość | Wartość |
|---|---|
| Wytrzymałość na rozciąganie | ≥ 150 MPa |
| Wytrzymałość na rozciąganie | ≥ 120 MPa |
| Wydłużenie | ≥ 2% |
Values are typical for sheet/plate products per ASTM B209 / EN 485-2. Actual properties depend on product form and thickness. Contact us for lot-specific test certifications.
| Temperament | Stan | Główna zaleta | Typowe zastosowanie |
|---|---|---|---|
| O (wyżarzony) | Fully annealed, softest condition | Maximum formability + highest conductivity | Deep drawing, spinning, chemical equipment, gaskets |
| H12 | Umocniony odkształceniowo, 1/4 twardy | Moderate strength with good formability | General sheet metal, panels, light structural |
| H14 | Umocniony odkształceniowo, 1/2 twardy | Balanced strength and ductility | Bus bars, electrical enclosures, signage |
| H16 | Umocniony odkształceniowo, 3/4 twardy | Wyższa wytrzymałość, ograniczona podatność na formowanie | Electrical conductors, terminals, stamped parts |
| H18 | Umocniony przez zgniot, pełny twardy | Maximum strength for this alloy | Flat washers, clips, wire products, thin strip |
| H112 | Stan po obróbce (bez specjalnej kontroli umocnienia przez zgniot) | Standard strength for extruded/plate products | General plate, bar and tube applications |
Uwaga: Unlike 6000 and 7000 series alloys, 1070 cannot be strengthened by heat treatment. Designers specifying 1070 should select the appropriate work-hardened temper based on the required combination of strength, ductility, and conductivity.
1070 is one of the highest-purity commercially available aluminum grades. Total impurity content is limited to a maximum of 0.30%, ensuring consistent electrical, thermal, and chemical performance. This purity level makes 1070 suitable for applications where contamination must be minimized, including food processing equipment, pharmaceutical packaging, and reflective surfaces.
In the annealed (O) temper, 1070 aluminum achieves approximately 62% IACS (International Annealed Copper Standard) conductivity — among the highest of any aluminum grade. This makes it a cost-effective and lightweight alternative to copper in electrical bus bars, transformer windings, power cables, and grounding applications where weight savings matter.
1070 aluminum forms a natural, self-healing oxide layer that provides strong resistance to atmospheric corrosion, freshwater, and most neutral chemical environments. It performs well in architectural, chemical processing, and general industrial settings without requiring additional protective coatings, though anodizing can further enhance surface durability and aesthetics.
In the O and lightly work-hardened tempers, 1070 exhibits exceptional cold formability, making it ideal for deep drawing, stamping, roll bonding, spinning, and impact extrusion. It can be formed into complex shapes with minimal risk of cracking, which is why it is widely used for capacitor foil, heat exchanger fins, and consumer product packaging.
1070 aluminum has good weldability using TIG (GTAW), MIG (GMAW), and resistance welding processes. Because 1070 is a non-heat-treatable alloy, the heat-affected zone does not lose strength from over-aging, though it may soften from annealing. For applications requiring post-weld strength in the joint area, filler metal selection and process control should be evaluated.
| Przemysł | Typowe zastosowania | Why 1070 |
|---|---|---|
| Electrical & Power | Bus bars, transformer windings, power cables, conductor wire, capacitor foil | High electrical conductivity (62% IACS), lightweight alternative to copper |
| Przetwarzanie chemiczne | Storage tanks, reaction vessels, heat exchangers, piping | Excellent corrosion resistance, high purity, no contamination risk |
| Heat Exchange & HVAC | Radiator fins, evaporator coils, condenser tubes, heat sinks | High thermal conductivity, good formability for fin manufacturing |
| Opakowanie | Aluminum foil, food containers, pharmaceutical blister packs, bottle caps | High purity, non-toxic, excellent deep-drawing and rolling characteristics |
| Construction & Architecture | Roofing sheet, flashing, wall cladding, decorative trim | Corrosion resistance, lightweight, good formability for profiling |
| Produkcja ogólna | Gaskets, washers, clips, stamped components, nameplates, reflective sheeting | Good formability at low cost, widely available in sheet and strip forms |
Linsy provides the following processing and surface treatment services for 1070 aluminum:
| Proces | Opis | Notes for 1070 |
|---|---|---|
| Obróbka CNC | Precision cutting, drilling, milling of bar, plate and custom blanks | 1070 is soft and gummy — use sharp tooling, high rake angles, and proper lubrication |
| Laser Cutting | High-precision profile cutting for sheet and plate | Suitable for 1070 up to moderate thicknesses; reflective surface may require fiber laser settings |
| Stamping & Deep Drawing | Forming complex shapes from sheet and coil | Excellent formability in O and H12/H14 tempers; ideal for deep-drawn components |
| TIG / MIG Welding | Gas tungsten arc and gas metal arc welding | Good weldability; use 1070 or 1100 filler for matching chemistry |
| Zakończenie | Opis |
|---|---|
| Anodowanie | Electrolytic oxide coating for enhanced corrosion resistance and aesthetics; 1070 produces a clear, bright anodic finish |
| Polishing | Mechanical or chemical polishing for reflective, decorative surfaces |
| Mill Finish | As-rolled or as-extruded surface, standard for structural and industrial applications |
| PVC Protective Film | Optional surface protection for sheet and plate during handling and fabrication |
Linsy maintains a documented quality control system covering the full production cycle — from raw material selection to finished product inspection. We provide the following quality documentation with your order:
| Document | Opis |
|---|---|
| MTC (Mill Test Certificate) | Issued for every order; includes chemical composition, mechanical properties, dimensions, and compliance to applicable standards |
| SGS Test Reports | Third-party chemical composition, mechanical properties, ultrasonic testing, RoHS & REACH, and dimensional inspection reports available on request |
| Certificate of Compliance | Confirms material compliance with specified ASTM, EN, or ISO standards |
| Dimensional Inspection Report | Batch-specific dimensional verification to specified tolerances |
Our management system is certified to ISO 9001, ISO 14001, and ISO 45001.
Linsy Aluminum is a Shenzhen-based aluminum factory with over 20 years of industry experience. For 1070 aluminum buyers, Linsy offers distinct advantages:
Supporting blog articles related to 1000-series aluminum and material selection will be added as relevant content becomes available. For now, contact our team directly for 1070-specific technical guidance and quotation.
1070 aluminum is primarily used in electrical conductors, transformer windings, bus bars, capacitor foil, heat exchanger fins, chemical processing equipment, food packaging, and architectural sheet applications where high purity, electrical conductivity, and corrosion resistance are required instead of high mechanical strength.
No. 1070 is a commercially pure, non-heat-treatable aluminum alloy in the 1000 series. Its strength can only be increased through cold working (strain hardening) — not through solution heat treatment or precipitation aging. Annealing restores full softness after cold working.
Both are commercially pure 1000-series grades. 1050 (Al ≥ 99.50%) allows slightly more impurities, while 1070 (Al ≥ 99.70%) maintains higher purity. 1070 typically offers marginally higher electrical conductivity and corrosion resistance. For most industrial applications, 1050 is adequate; 1070 is preferred when maximum purity or conductivity is critical.
In the annealed (O) temper, 1070 aluminum achieves approximately 62% IACS electrical conductivity. For comparison, 1070-H18 (full-hard temper) may drop slightly due to the dislocation density from cold working. This conductivity, combined with aluminum’s lower density (roughly one-third that of copper), makes 1070 an attractive weight-saving conductive material.
Yes. 1070 aluminum anodizes well and produces a clear, bright, transparent oxide layer due to its high purity and low alloy content. It is commonly used in decorative anodized applications where a uniform, high-gloss finish is required. For architectural anodizing, 1070 sheet can be specified with appropriate surface pretreatment.
Yes. 1070 has good weldability using TIG (GTAW), MIG (GMAW), and resistance welding. As a non-heat-treatable grade, the heat-affected zone does not experience over-aging strength loss, though some softening due to annealing may occur. For matching filler metal, 1070 or 1100 filler wire is recommended.
No. Like all aluminum alloys, 1070 does not rust in the way iron and steel do. It forms a thin, transparent, self-healing aluminum oxide layer that protects the underlying metal. This provides excellent resistance to atmospheric corrosion, freshwater, and most neutral chemical environments. For highly acidic or alkaline exposure, additional protection or material selection should be evaluated.
Yes. Every 1070 aluminum order from Linsy includes a Mill Test Certificate (MTC) documenting chemical composition, mechanical properties, and dimensional compliance. SGS third-party testing — including chemical analysis, mechanical testing, ultrasonic inspection, and RoHS/REACH reports — is available on request.
Linsy supports low-MOQ orders across all 1070 aluminum product forms. Minimum quantities vary by product form and specification — contact our sales team with your requirements for a specific quotation.
Custom production lead times typically range from 10 to 60 days, depending on the alloy, dimensions, temper, processing requirements, and order complexity. Stock items can ship sooner. Contact us with your specification for an accurate delivery estimate.
Yes, we provide samples for evaluation before bulk orders. Sample availability and shipping terms depend on the product form and specification. Contact our sales team to request samples.
We accept T/T (wire transfer) and L/C (letter of credit). Payment terms are negotiable based on order size and customer relationship.
We ship by sea freight (FCL/LCL), air freight, and express courier (DHL, FedEx, UPS), depending on order size and urgency. We can also ship to your nominated forwarder.
Yes. We offer custom cutting services including precision saw cutting, laser cutting, and shearing for 1070 aluminum sheet, plate, bar, and tube to your specified dimensions.
Contact Linsy Aluminum today for your 1070 aluminum (Al99.7) sheet, wire, bar, and tube requirements. Custom sizes, full MTC documentation, and SGS test reports available on request.
Zalety Linsy
Linsy Aluminium jest wiodącym dostawcą produktów do obróbki aluminium, obsługującym różne branże, w tym lotnictwo, inżynierię ogólną, motoryzację, przemysł morski, stoczniowy i inne specjalistyczne zastosowania przemysłowe.
Dążymy do utrzymania najwyższych standardów jakości i odpowiedzialności za środowisko, o czym świadczą nasze certyfikaty: ISO 9001:2008， ISO 14001:2004 oraz SGS.
