2014 aluminum alloy (AlCu4SiMg) is a high-strength 2000 series wrought aluminum alloy alloyed primarily with copper, silicon, and magnesium. Known as one of the strongest aluminum alloys in the 2xxx series, 2014 offers excellent strength-to-weight performance, good forgeability, and moderate machinability. It is widely used in aerospace structural components, military equipment, and high-stress automotive applications. Linsy supplies 2014 aluminum sheet, plate, bar, tube, and forging stock in tempers O, T4, T6, T651, and T351, with custom sizes, processing support, and MTC reports available.
Доступные формы: sheet / plate / coil / bar / tube / forging stock / profile
Распространенные типы характера: O / T4 / T6 / T651 / T351
Поддержка обработки: CNC machining / forging / extrusion / cutting / surface finishing
Документы по качеству: К каждому заказу прилагается отчет MTC; протоколы испытаний SGS предоставляются по запросу
2014 aluminum alloy (UNS A92014) is a precipitation-hardened 2000 series wrought aluminum alloy alloyed primarily with copper (Cu), silicon (Si), and magnesium (Mg). Its designation in the European standard system is EN AW-2014 / AlCu4SiMg, reflecting the major alloying elements. The copper content (3.9–5.0%) provides high strength through precipitation hardening, while silicon (0.5–1.2%) and magnesium (0.2–0.8%) contribute additional strengthening and improve the alloy’s response to heat treatment.
2014 is one of the strongest aluminum alloys in the 2xxx series, second only to 2024 in popularity. It is commonly shaped by extrusion, forging, and machining — producing structural components for the aerospace industry where high strength and moderate fatigue resistance are required. The alloy reaches its peak mechanical properties in the T6 temper (solution heat-treated and artificially aged), with typical tensile strength exceeding 470 MPa.
However, 2014 has notable limitations. Its high copper content results in poor corrosion resistance compared to 5xxx and 6xxx series alloys — to mitigate this, 2014 is often supplied with pure aluminum cladding (Alclad) for applications exposed to outdoor or corrosive environments. The alloy is also difficult to weld by conventional arc welding methods, as it is susceptible to hot cracking in the heat-affected zone. For applications requiring joining, mechanical fastening or friction stir welding are preferred.
2014 aluminum is covered under multiple international standards including ASTM B209 (sheet/plate), B211 (bar), B221 (extruded profiles), and EN 573-3 / EN 755 (European bar and profile standards).
Linsy supplies 2014 aluminum alloy in a range of standard and custom product forms. Length, width, diameter, and dimensional tolerances can be tailored to your project requirements.
| Форма | Темпер | Толщина (мм) | Ширина (мм) | Длина (мм) |
|---|---|---|---|---|
| 2014 Sheet / Coil | O, T4, T6, T351 | 0.3 – 6.0 | 500 – 2600 | 500 – 16000 |
| 2014 Alclad Sheet | T4, T6 | 0.5 – 6.0 | 500 – 2600 | 500 – 16000 |
| Форма | Темпер | Толщина (мм) | Ширина (мм) | Длина (мм) |
|---|---|---|---|---|
| 2014 Plate | O, T6, T651, T351 | 6.0 – 150 | 500 – 2600 | 500 – 16000 |
| Форма | Темпер | Diameter / Size (mm) | Длина (мм) |
|---|---|---|---|
| 2014 Round Bar | T4, T6, T651, T351 | 5 – 300 | 1000 – 6000 |
| 2014 Hex / Square Bar | T4, T6, T651 | 5 – 100 | 1000 – 6000 |
| Форма | Темпер | Внешний диаметр (мм) | Толщина стенки (мм) | Длина (мм) |
|---|---|---|---|---|
| 2014 Seamless Tube | T4, T6 | 6 – 300 | 1 – 50 | 1000 – 6000 |
| 2014 Extruded Tube | T4, T6, T351 | 10 – 250 | 2 – 40 | 1000 – 6000 |
| Форма | Темпер | Diameter / Size (mm) | Примечания |
|---|---|---|---|
| Forging Billet | F, O | 50 – 400 | Custom lengths available |
| Forged Ring / Disc | T6, T651 | OD 100 – 1500 | Per customer drawing |
2014 aluminum extruded profiles, wire, and custom shapes are available on request. Contact our team with your drawings or dimensional requirements for a custom quotation.
2014 aluminum alloy is recognized under multiple international designation systems. The table below lists the most commonly referenced equivalents and applicable standards.
| Стандарт / Система | Наименование |
|---|---|
| UNS | A92014 |
| EN (европейский) | EN AW-2014 / AlCu4SiMg |
| Werkstoff (Германия) | 3.1255 |
| BS (британский) | 2014 |
| ISO | AlCu4SiMg |
| JIS (Япония) | A2014 |
| GB (China) | 2A14 |
Применимые стандарты: ASTM B209 (sheet/plate), ASTM B211 (bar), ASTM B221 (extruded profiles), ASTM B247 (forgings), EN 573-3, EN 755 (extruded bar/rod/profile)
The table below shows the chemical composition limits for 2014 aluminum alloy in accordance with ASTM B209 / EN 573-3. Values are expressed as weight percentage (%).
| Элемент | Химический символ | Мин (%) | Макс (%) |
|---|---|---|---|
| Кремний | Si | 0.50 | 1.20 |
| Железо | Fe | — | 0.70 |
| Медь | Cu | 3.90 | 5.00 |
| Марганцовка | Mn | 0.40 | 1.20 |
| Магний | Mg | 0.20 | 0.80 |
| Хром | Cr | — | 0.10 |
| Цинк | Zn | — | 0.25 |
| Титан | Ti | — | 0.15 |
| Прочие элементы (каждый) | — | — | 0.05 |
| Прочие элементы (всего) | — | — | 0.15 |
| Алюминий | Эл | Баланс | |
The mechanical properties of 2014 aluminum alloy vary significantly by temper condition. The table below provides reference values for commonly supplied tempers. Actual values depend on product form, dimensions, and manufacturing conditions — representative values from your order’s MTC report should be used for design purposes.
| Темпер | Состояние | Прочность на разрыв Rm (МПа) | Предел текучести Rp0.2 (МПа) | Относительное удлинение A50 (%) |
|---|---|---|---|---|
| O | Отжиганая (мягкая) | ≤ 220 | ≤ 100 | ≥ 12 |
| T4 | Термообработанный раствор, естественно состаренный | ≥ 370 | ≥ 230 | ≥ 10 |
| T6 | Термообработанный раствор, искусственно состаренный | ≥ 440 | ≥ 380 | ≥ 7 |
| T651 | Solution heat-treated, stress-relieved by stretching, artificially aged | ≥ 450 | ≥ 390 | ≥ 7 |
| T351 | Термообработанный раствор, снятие напряжения путем растяжения, естественное состаривание | ≥ 380 | ≥ 240 | ≥ 10 |
Примечание: T651 and T351 include stress-relief by stretching to reduce internal residual stress, improving dimensional stability during machining. These tempers are recommended for precision-machined components and thick plate applications. The mechanical property ranges above are reference values based on ASTM B209 / B211. Contact our team for project-specific MTC data.
The table below summarizes the key characteristics and recommended use cases for the most commonly supplied 2014 aluminum tempers.
| Темпер | Основные характеристики | Лучшее для |
|---|---|---|
| O | Annealed, softest condition. High ductility, low strength. Good formability. | Forming, bending, and deep drawing before heat treatment |
| T4 | Solution heat-treated and naturally aged. Good combination of strength and ductility. | Structural components requiring moderate strength, parts to be further formed |
| T6 | Solution heat-treated and artificially aged. Maximum strength condition for 2014. | Aerospace structural parts, high-stress components, military equipment |
| T651 | Same as T6 but stress-relieved by stretching. Reduced residual stress, improved dimensional stability. | Precision-machined plate components, thick-section parts, aerospace fittings |
| T351 | Stress-relieved version of T4. Better dimensional stability than T4. | Machined components requiring moderate strength and tight tolerances |
2014 aluminum alloy in the T6 temper achieves tensile strengths exceeding 440 MPa, making it one of the strongest commercially available aluminum alloys. This high strength-to-weight ratio makes it a preferred material for aerospace and defense applications where weight reduction is critical without compromising structural integrity.
2014 exhibits good forgeability in the O and F conditions, allowing the production of complex forged shapes such as structural fittings, brackets, and rings. Forging followed by heat treatment to T6 or T651 produces components with high mechanical properties and favorable grain structure. This combination of forgeability and post-heat-treatment strength makes 2014 a standard choice for forged aerospace components.
Due to its high copper content (3.9–5.0%), 2014 aluminum has significantly lower corrosion resistance than 5xxx, 6xxx, and 7xxx series alloys. The copper-rich phases are anodic to the aluminum matrix, leading to localized pitting corrosion in chloride-containing environments. For outdoor or corrosive service, 2014 should be protected with Alclad (pure aluminum cladding), anodizing, painting, or chemical conversion coatings. Unclad 2014 exposed to outdoor environments should always be painted or coated.
2014 aluminum is classified as difficult to weld by conventional arc welding methods (TIG / MIG). The high copper content and alloy chemistry promote hot cracking in the weld heat-affected zone, and welded joints typically exhibit significantly reduced mechanical properties. Where welding is unavoidable, specialized filler wires (such as 4043 or 4145) and carefully controlled procedures are required. For most structural applications, mechanical fastening (bolts, rivets) or friction stir welding (FSW) are the preferred joining methods.
In the T6 and T651 tempers, 2014 offers good machinability with acceptable chip formation and surface finish. While not as free-machining as dedicated free-machining alloys like 2011 or 2007, 2014 machines well with carbide tooling at moderate cutting speeds. The alloy responds favorably to CNC milling, turning, and drilling operations.
2014 aluminum alloy is widely used in industries where high strength, forgeability, and moderate fatigue resistance are critical. The table below outlines common application areas and the reasons 2014 is selected.
| Промышленность | Типовые применения | Why 2014 Is Used |
|---|---|---|
| Аэрокосмическая промышленность | Wing tension members, fuselage skins, structural fittings, bulkheads, truck wheels | High strength-to-weight ratio, good forgeability, proven aerospace service history |
| Defense & Military | Armored vehicle components, weapons platforms, military aircraft parts | High strength in T6 temper, good ballistic properties for aluminum |
| Автомобили | Forged suspension components, control arms, wheels, structural brackets | Strength comparable to some steels at one-third the weight |
| Heavy Equipment | Hydraulic cylinder components, machine tool parts, heavy-duty brackets | High compressive strength, good wear resistance in forged condition |
| Спортивное оборудование | Bicycle frames, baseball bats, high-strength sporting components | High strength, low weight, good fatigue resistance |
| Водное судно | Marine structural components, boat fittings (with corrosion protection) | High strength for structural loading; Alclad or coating required for corrosion protection |
2014 aluminum machines well in the T6 and T651 tempers using carbide tooling at moderate to high cutting speeds. Chips are moderately short and manageable. Coolant or cutting fluid is recommended for deep drilling and heavy milling operations to manage heat and improve surface finish. For precision parts, T651 plate is recommended due to its lower residual stress and improved dimensional stability during machining.
2014 is one of the most forgeable high-strength aluminum alloys. Forging is typically performed at 380–440°C in the O or F condition, followed by solution heat treatment and aging to T6 or T651. The alloy’s good forgeability allows production of complex shapes with favorable mechanical properties. Forged 2014 components are common in aerospace and military applications.
2014 can be extruded into standard and custom profiles, though it requires higher extrusion pressures than 6061 or 6063 due to its higher strength at elevated temperatures. Extruded 2014 profiles are typically supplied in T4, T6, or T351 tempers after solution heat treatment and aging.
Due to its poor corrosion resistance, 2014 aluminum components intended for outdoor or corrosive environments should be protected. Common surface treatments include:
2014 is classified as difficult to weld by conventional TIG and MIG processes due to its susceptibility to hot cracking and strength loss in the heat-affected zone. Where joining is required, use mechanical fasteners (bolts, rivets), adhesive bonding, or friction stir welding (FSW). If arc welding is unavoidable, use 4043 or 4145 filler wire with strict procedure control and post-weld heat treatment.
Every order of 2014 aluminum alloy from Linsy includes a Mill Test Certificate (MTC) documenting the heat number, chemical composition, mechanical properties, and dimensional tolerances of the supplied material.
Доступные документы по качеству:
Компания Linsy работает в соответствии со стандартами систем управления ISO 9001, ISO 14001 и ISO 45001, при этом контроль качества охватывает весь процесс — от отбора сырья до проверки готовой продукции.
Linsy Aluminum is a Shenzhen-based aluminum factory with more than 20 years of industry experience. We supply 2014 aluminum alloy sheet, plate, bar, tube, and forging stock across standard and custom specifications, with both stock inventory and low-MOQ custom production available.
What you get when you source 2014 from Linsy:
Learn more about aluminum alloy selection, 2xxx series comparisons, and aerospace-grade aluminum from our technical blog:
For 2014-specific comparison and application content, contact our team or visit the Linsy blog for updated technical articles on 2xxx series high-strength alloys.
What is 2014 aluminum alloy used for?
2014 aluminum is primarily used for high-strength structural applications in the aerospace, defense, and automotive industries. Typical applications include aircraft wing tension members, fuselage structural components, forged fittings, truck wheels, military vehicle parts, and high-stress sporting equipment. Its high strength-to-weight ratio and good forgeability make it ideal for forged and machined structural components.
В чем разница между алюминием 2014 и 2024 годов?
Both 2014 (AlCu4SiMg) and 2024 (AlCu4Mg1.5) are high-strength 2xxx series copper alloys used in aerospace. 2014 contains silicon (0.5–1.2%) for improved strength and forgeability, while 2024 has higher magnesium content for better fatigue resistance and damage tolerance. 2014 generally offers higher compressive yield strength and better forgeability, while 2024 provides superior fatigue performance in tension-critical applications.
Is 2014 aluminum weldable?
No, 2014 is classified as difficult to weld by conventional TIG and MIG processes due to its high copper content, which promotes hot cracking in the heat-affected zone. Mechanical fastening (bolts, rivets), adhesive bonding, or friction stir welding (FSW) are the preferred joining methods. If arc welding is unavoidable, use 4043 or 4145 filler wire with strict procedure control.
What is the difference between 2014-T6 and 2014-T651?
Both are solution heat-treated and artificially aged to peak strength. T651 includes an additional stress-relief step by stretching (1–3% permanent strain) after quenching, which reduces internal residual stress and improves dimensional stability during machining. T651 is recommended for thick plate and precision-machined components where tight tolerances are required.
Can 2014 aluminum be anodized?
Yes, but the anodized appearance will differ from 6xxx series alloys. Due to its high copper content, 2014 anodized films tend to appear yellowish or greyish and are less transparent than those on 6061 or 5052. For corrosion protection, Alclad, hard anodizing, or chemical conversion coatings may be more effective than standard sulfuric acid anodizing.
Why does 2014 aluminum have poor corrosion resistance?
The high copper content (3.9–5.0%) in 2014 creates copper-rich intermetallic phases that are cathodic to the aluminum matrix. In corrosive environments, these phases accelerate localized pitting and galvanic corrosion. For outdoor or corrosive service, 2014 should be protected with Alclad (pure aluminum cladding), painting, anodizing, or chemical conversion coatings.
Does Linsy provide MTC for 2014 aluminum?
Yes. Every order of 2014 aluminum from Linsy includes a Mill Test Certificate (MTC) documenting the heat number, chemical composition analysis, mechanical test results, and dimensional inspection data.
What sizes of 2014 aluminum plate can I order?
Linsy supplies 2014 plate from 6.0 mm to 150 mm thick, in widths up to 2600 mm and lengths up to 16000 mm. Custom dimensions and non-standard tolerances are available on request with a typical lead time of 10–60 days.
What is the minimum order quantity (MOQ) for 2014 aluminum?
Компания Linsy принимает заказы с небольшим минимальным объемом поставки. Стандартные позиции, имеющиеся на складе, могут поставляться небольшими партиями, а для заказов на изготовление по индивидуальным спецификациям минимальный объем поставки варьируется в зависимости от технических характеристик. Свяжитесь с нами, предоставив чертеж детали или свои требования, чтобы получить коммерческое предложение.
What is the typical lead time for 2014 aluminum orders?
Товары, имеющиеся на складе, отправляются в течение нескольких рабочих дней. Изготовление продукции по индивидуальному заказу обычно занимает 10–60 дней, в зависимости от сплава, размеров, требований к обработке и объема заказа.
Какие условия оплаты и доставки вы принимаете?
Мы предлагаем гибкие условия оплаты и доставки для международных покупателей в сегменте B2B. Свяжитесь с нашим отделом продаж, чтобы обсудить способы оплаты (T/T, L/C), варианты доставки (FOB, CIF, DAP) и доставку в ваш регион.
Can you process 2014 aluminum parts to my drawings?
Yes. Our in-house CNC machining facility can produce finished parts from 2014 plate, bar, or forging stock according to your technical drawings. Submit your drawing or 3D model for a machining quotation.
Do you supply 2014 to export markets?
Да. Компания «Линси» экспортирует алюминиевую продукцию в Европу, Северную и Южную Америку, Юго-Восточную Азию, на Ближний Восток и в другие регионы. Наша система управления качеством, сертифицированная по стандарту ISO 9001, а также документация MTC обеспечивают соответствие международным требованиям в области закупок и нормативно-правового регулирования.
Преимущества Linsy
Linsy Aluminum - ведущий поставщик продукции для обработки алюминия, обслуживающий различные отрасли промышленности, включая аэрокосмическую, общее машиностроение, автомобильную, морскую, судостроительную и другие специализированные промышленные приложения.
Мы стремимся поддерживать самые высокие стандарты качества и экологической ответственности, о чем свидетельствуют наши сертификаты: ISO 9001:2008, ISO 14001:2004 и SGS.
