2019 aluminum alloy is a heat-treatable 2000 series alloy with copper as the primary alloying element, supplemented by manganese and magnesium. It delivers high tensile strength and good elevated-temperature performance for structural and aerospace applications. Linsy supplies 2019 aluminum in sheet, plate, coil, bar, tube, wire, and custom profiles, with tempers including O, T3, T351, T4, T42, and T451. Custom sizes, in-house processing, and MTC reports are available for every order.
Available forms: sheet / plate / coil / bar / tube / wire / profile
Common tempers: O / T3 / T351 / T4 / T42 / T451
Processing support: CNC machining / laser cutting / polishing / anodizing
Quality documents: MTC report with every order
2019 aluminum alloy is a heat-treatable 2000 series aluminum alloy primarily alloyed with copper (3.5–4.5%), with additions of manganese (0.4–1.0%) and magnesium (0.4–0.8%). As a Cu-Mg-Mn alloy, it belongs to the same family as 2014 and 2024, offering a balance of high tensile strength, good machinability, and reasonable elevated-temperature capability.
The copper content gives 2019 aluminum significantly higher strength than most 1000 and 3000 series alloys. However, like other 2000 series alloys, its corrosion resistance is lower than that of 5000 and 7000 series alloys, which should be considered in applications where environmental exposure is a factor. Protective surface treatments such as anodizing or cladding are often recommended for corrosive environments.
2019 aluminum is typically supplied in tempers O, T3, T351, T4, T42, and T451. It is used in aerospace structures, automotive components, and high-stress mechanical applications where strength-to-weight ratio is critical.
Linsy supplies 2019 aluminum across a full range of product forms. Standard specifications are available from inventory, and custom sizes can be produced with low MOQs. Below is an overview of available forms and typical size ranges.
| Alaşım | Temper | Kalınlık (mm) | Genişlik (mm) | Uzunluk (mm) |
|---|---|---|---|---|
| 2019 Sheet / Coil | O, T3, T351, T4, T42, T451 | 0.3–6.0 | 500–2600 | 500–16000 (or coil) |
| Custom dimensions available upon request | ||||
| Alaşım | Temper | Kalınlık (mm) | Genişlik (mm) | Uzunluk (mm) |
|---|---|---|---|---|
| 2019 Plate | O, T351, T451 | 6.0–200 | 500–2600 | 500–16000 |
| Custom dimensions available upon request | ||||
| Alaşım | Temper | Çap (mm) | Uzunluk (mm) |
|---|---|---|---|
| 2019 Bar | O, T3, T351, T4, T42, T451 | Φ3–300 | 500–6000 |
| Custom dimensions available upon request | |||
| Alaşım | Temper | Dış Çap (mm) | İç Çap (mm) | Uzunluk (mm) |
|---|---|---|---|---|
| 2019 Tube | O, T3, T351, T4, T42, T451 | Φ6–300 | Φ3–280 | 500–6000 |
| Custom dimensions available upon request | ||||
| Alaşım | Temper | Çap (mm) | Form |
|---|---|---|---|
| 2019 Wire | O, T3, T4 | Φ1–12 | Coil / Straight |
| Custom dimensions available upon request | |||
Custom extruded and machined profiles are available in 2019 aluminum upon request. Linsy supports profile drawings, custom cross-sections, and project-specific dimensional requirements. Contact our team with your specifications for a quotation.
| Designation System | Equivalent |
|---|---|
| AA (Aluminum Association) | 2019 |
| EN Designation | EN AW-2019 |
| DIN Designation | AlCu4.5Mg0.6Mn |
| UNS Number | A92019 |
| Element | Yüzde (%) |
|---|---|
| Si | 0.2–0.8 |
| Fe | 0,7 maks. |
| Cu | 3.5–4.5 |
| Mn | 0.4–1.0 |
| Mg | 0.4–0.8 |
| Cr | 0,1 maks. |
| Zn | 0,25 maks. |
| Ti | 0,15 maks. |
| Diğerleri (her biri) | 0,05 maks. |
| Diğerleri (toplam) | 0,15 maks. |
| Al | Denge |
The following mechanical properties are typical reference values for 2019 aluminum. Actual properties may vary with product form, thickness, and specific heat treatment. Values should be confirmed with the MTC report for each order.
| Temper | Çekme Dayanımı, Nihai (MPa) | Çekme Dayanımı, Akma (MPa) | İçin En İyisi |
|---|---|---|---|
| O (Tavlanmış) | ≤ 220 | ≤ 100 | Maximum formability, cold working |
| T3, T4 | ~420 | ~310 | High strength, solution heat-treated and naturally aged |
| T351, T42, T451 | ~410–430 | ~300–320 | Stress-relieved, good dimensional stability for machining |
Note: The above values are typical reference ranges based on the original source data. Exact mechanical properties for each batch are documented in the MTC report provided with every order.
| Temper | Key Benefit | Tipik Uygulamalar |
|---|---|---|
| O | Maximum formability | Deep drawing, complex forming, bending |
| T3 | High strength after solution heat treatment and cold work | Aerospace skins, structural panels |
| T351 | Stress-relieved for dimensional stability | Precision-machined plate, tooling plates |
| T4 | Çözelti ile ısıl işlem görmüş ve doğal yaşlandırılmış | General high-strength structural parts |
| T42, T451 | Stress-relieved variants of T4 | Machined components requiring stability |
The 3.5–4.5% copper content makes 2019 aluminum significantly stronger than most non-heat-treatable alloys. In T3 and T4 tempers, it achieves tensile strengths up to approximately 420 MPa, making it suitable for high-stress structural applications.
Compared to 7000 series alloys, 2000 series alloys like 2019 retain better strength at elevated temperatures. This makes 2019 aluminum a practical choice for components operating in moderately high-temperature environments.
Due to its copper content, 2019 aluminum has lower corrosion resistance than 5000, 6000, and 7000 series alloys. In corrosive or marine environments, protective measures such as anodizing, painting, or alclad coating are recommended. For applications where corrosion resistance is the primary concern, 5083 or 6061 may be more suitable alternatives.
In the annealed (O) temper, 2019 aluminum offers good formability for bending and cold working. However, formability decreases significantly in T3 and T4 tempers. Welding of 2019 aluminum is generally not recommended due to crack susceptibility in the heat-affected zone. Mechanical fastening or specialized welding processes with appropriate filler selection should be considered, and welding performance should be validated for specific applications.
| Endüstri | Tipik Uygulamalar | Why 2019 Is Used |
|---|---|---|
| Havacılık ve Uzay | Structural skins, fuselage panels, wing components | High strength-to-weight ratio, heat resistance |
| Otomotiv | Structural frames, suspension components, heat shields | Strength at moderate temperatures, machinability |
| General Engineering | Machine components, fixtures, tooling plates | High strength, good machinability in T351/T451 |
| Heavy-Duty Structures | Load-bearing brackets, reinforcement plates | High yield strength, proven performance |
Linsy provides in-house processing and surface treatment services for 2019 aluminum products. Available capabilities include:
Welding caution: 2019 aluminum has poor weldability due to its copper content and susceptibility to solidification cracking. If welding is required, consult with our technical team to evaluate appropriate filler materials and processes. Mechanical fastening is generally preferred for structural joints.
Linsy Aluminum is a Shenzhen-based aluminum factory with more than 20 years of industry experience. We supply 2019 aluminum across sheet, plate, coil, bar, tube, wire, and custom profiles, with both in-stock standard specifications and low-MOQ custom production.
Our supply model combines inventory availability with flexible custom production. Typical custom lead times range from 10 to 60 days, depending on the alloy, dimensions, processing requirements, and order complexity. In-house CNC machining, laser cutting, and surface treatment capabilities allow us to support customers who need both material supply and downstream processing.
We provide an MTC for every order and support SGS third-party testing on request. Our products are exported to Europe, South Africa, Brazil, Singapore, Turkey, Japan, South Korea, and other markets.
Learn more about Linsy Aluminum
For more information on aluminum alloys, processing, and selection guides, please explore our technical resources. Related articles will be linked here as they become available.
2019 aluminum is primarily used in aerospace structures, automotive components, and high-stress mechanical applications. Its high strength and good elevated-temperature performance make it suitable for fuselage panels, structural frames, and machine components where strength-to-weight ratio is important.
Linsy supplies 2019 aluminum in tempers O, T3, T351, T4, T42, and T451. The O temper offers maximum formability, while T3 and T4 provide high strength. T351 and T451 are stress-relieved variants recommended for machined parts requiring dimensional stability.
Welding of 2019 aluminum is generally not recommended due to its copper content and susceptibility to solidification cracking in the heat-affected zone. If joining is required, mechanical fastening is preferred. For applications where welding is necessary, consult with our technical team to evaluate appropriate processes and filler materials.
Both 2019 and 2024 are 2000 series copper alloys with high strength. 2024 is more widely used in aerospace and has slightly different composition ratios. The choice depends on specific application requirements, availability, and certification needs. Contact our team for alloy selection guidance.
Yes. An MTC (Material Test Certificate) is provided for every order, documenting the chemical composition and mechanical properties of the supplied material. SGS third-party test reports are also available on request with additional testing cost.
Linsy supplies 2019 aluminum in sheet (0.3–6.0mm), plate (6.0–200mm), bar (Φ3–300mm), tube (Φ6–300mm OD), wire (Φ1–12mm), and custom profiles. Custom dimensions are available with low MOQs. Contact us with your specifications for a quotation.
MOQ varies by product form, alloy, and whether the item is in stock or requires custom production. Linsy supports low-MOQ custom production for non-stock items. Contact us with your requirements for specific MOQ information.
For in-stock items, shipment can typically be arranged within a few days. For custom production, typical lead times range from 10 to 60 days, depending on the alloy, dimensions, processing requirements, and order complexity.
We accept standard international payment methods including T/T (wire transfer), L/C, and other negotiable terms. Payment terms can be discussed during quotation.
Yes. Linsy Aluminum exports to Europe, South Africa, Brazil, Singapore, Turkey, Japan, South Korea, and other markets. We can arrange shipping by sea, air, or land based on your location and urgency.
Samples may be available for certain products. Please contact us with your specific requirements, and we will advise on sample availability and associated costs.
Linsy Avantajları
Linsy Alüminyum, havacılık, genel mühendislik, otomotiv, denizcilik, gemi yapımı ve diğer özel endüstriyel uygulamalar dahil olmak üzere çeşitli endüstrilere hizmet veren lider bir alüminyum işleme ürünleri tedarikçisidir.
Sertifikalarımızın da gösterdiği gibi, en yüksek kalite ve çevresel sorumluluk standartlarını sürdürmeye kararlıyız: ISO 9001:2008 ， ISO 14001:2004 ve SGS.
