2024 aluminum flat bar is a high-strength Al-Cu-Mg alloy bar supplied in rectangular cross-section. Known for excellent fatigue resistance and machinability, it is widely used in aerospace structural components, fittings, and precision-machined parts. Linsy Aluminum offers 2024 flat bar in O, T3, T4, T351, and T851 tempers with full mill test certificates.
Доступные формы: flat bar (rectangular cross-section)
Распространенные типы характера: O / T3 / T4 / T351 / T851
Поддержка обработки: CNC machining / milling / cutting / anodizing
Документы по качеству: Отчет MTC с каждым заказом
2024 aluminum flat bar is a rectangular cross-section bar made from 2024 aluminum alloy, a heat-treatable Al-Cu-Mg alloy. The flat bar form factor is particularly suited for structural brackets, supports, guide rails, and machined components where a rectangular profile is required. 2024 alloy provides one of the highest strength-to-weight ratios among aluminum alloys, making it a preferred material in aerospace and high-performance engineering applications.
Flat bars are typically supplied in T3 and T351 tempers for maximum strength, or in O temper for applications requiring subsequent forming. The T851 temper is used for components requiring elevated temperature stability.
| Сплав | Темпер | Ширина (мм) | Толщина (мм) | Длина (мм) |
|---|---|---|---|---|
| 2024 Flat Bar | O, T3, T4, T351, T851 | 10-300 | 3-80 | 1000-6000 |
| Custom dimensions available on request | ||||
| Ширина (мм) | Толщина (мм) | Типичное применение |
|---|---|---|
| 25 | 5 | Structural brackets, supports |
| 40 | 8 | Machine parts, guide rails |
| 50 | 10 | Fittings, mounting plates |
| 75 | 15 | High-stress structural components |
| 100 | 20 | Aerospace structural parts |
| 150 | 30 | Heavy-duty brackets, tooling |
| Стандарт | Наименование |
|---|---|
| AA (США) | 2024 |
| EN (Европа) | EN AW-2024 |
| DIN (Германия) | 3.1355 / AlCu4Mg1 |
| ISO | AlCu4Mg1 |
| UNS | A92024 |
| GB (Китай) | 2A12 |
| JIS (Япония) | A2024 |
| Элемент | Содержание (%) |
|---|---|
| Si | 0,50 макс. |
| Fe | 0,50 макс. |
| Cu | 3.8-4.9 |
| Mn | 0.30-0.90 |
| Mg | 1.2-1.8 |
| Cr | 0.10 макс. |
| Zn | 0,25 макс. |
| Ti | 0,15 макс. |
| Другие (каждый) | 0,05 макс. |
| Прочие (всего) | 0,15 макс. |
| Эл | Баланс |
| Недвижимость | 2024-O | 2024-T3 | 2024-T351 | 2024-T851 |
|---|---|---|---|---|
| Прочность на разрыв, предельная (МПа) | 186 | 483 | 462 | 517 |
| Прочность на разрыв, предел текучести (МПа) | 76 | 345 | 324 | 455 |
| Прочность на сдвиг (МПа) | 124 | 283 | 262 | 276 |
| Удлинение при разрыве (%) | 20 | 18 | 17 | 7 |
| Твердость (Бринелль) | 47 | 120 | 120 | 137 |
| Темпер | Характеристики | Typical Use for Flat Bar |
|---|---|---|
| O | Annealed, maximum formability, lowest strength | Forming, bending, subsequent machining before heat treatment |
| T3 | Solution heat-treated, cold worked, naturally aged. Highest strength | Aerospace brackets, structural supports, fittings |
| T4 | Solution heat-treated, naturally aged (no cold work) | Components requiring moderate forming after heat treatment |
| T351 | Термообработанный раствор, снятие напряжения путем растяжения, естественное состаривание | Machined aerospace parts, precision components |
| T851 | Solution heat-treated, stress-relieved, artificially aged | High-temperature structural applications |
2024 flat bar delivers exceptional strength in T3 and T351 tempers, with ultimate tensile strength up to 483 MPa. This makes it suitable for load-bearing structural components where weight reduction is critical.
2024 flat bar machines very well in T3 and T351 conditions. The rectangular profile provides stable work-holding for CNC milling, drilling, and surface machining operations, producing excellent surface finish and dimensional accuracy.
The alloy exhibits excellent fatigue resistance, particularly in T3 temper. This is essential for flat bar components subject to cyclic loading in aerospace and mechanical applications.
2024 has lower corrosion resistance compared to 6xxx and 7xxx series alloys. For corrosive environments, anodizing or protective coating is recommended. In aerospace applications, Alclad protection or chromate conversion coating is commonly applied.
2024 aluminum flat bar can be further processed to meet specific requirements:
For forming and bending operations, O temper flat bar is recommended. After forming, the material can be solution heat-treated and aged to achieve T3 or T4 properties.
Every 2024 aluminum flat bar order from Linsy Aluminum is accompanied by a Mill Test Certificate (MTC) documenting chemical composition, mechanical properties, and dimensional verification. SGS test reports are available on request for independent third-party verification.
Linsy Aluminum operates under ISO 9001 (quality management), ISO 14001 (environmental management), and ISO 45001 (occupational health and safety) certifications. Dimensional inspection, straightness verification, and surface defect examination are performed on all flat bar products.
Linsy Aluminum is a Shenzhen-based aluminum supplier with over 20 years of experience. We supply 2024 aluminum flat bar in standard and custom dimensions, with full traceability from ingot to finished product.
Our capabilities include CNC machining, cutting, and surface finishing. Typical custom lead time is 10-60 days depending on dimensions, quantity, and processing requirements. We export to Europe, South Africa, Brazil, Singapore, Turkey, Japan, South Korea, and other markets.
Contact our technical team for temper selection guidance, custom size quotations, and material certifications.
What sizes are available for 2024 aluminum flat bar?
Standard widths range from 10 to 300 mm, thicknesses from 3 to 80 mm, and lengths from 1000 to 6000 mm. Custom dimensions are available on request.
What is the difference between flat bar and rectangular bar?
Flat bar and rectangular bar refer to the same product form: a bar with a rectangular cross-section where the width is significantly greater than the thickness.
Can 2024 flat bar be bent or formed?
In the O (annealed) temper, 2024 flat bar can be bent and formed. After forming, it can be solution heat-treated and aged to achieve T3 or T4 properties. Forming in T3 or T351 tempers is not recommended due to cracking risk.
Is 2024 flat bar weldable?
Conventional arc welding is not recommended for 2024 due to solidification cracking. Mechanical fastening (riveting, bolting) is the standard joining method.
What is the surface finish of as-supplied flat bar?
Standard supply condition is mill finish. Anodizing, polishing, and other surface treatments are available on request.
Каков минимальный объём заказа?
MOQ varies by size and temper. Contact our sales team for specific requirements.
Каковы обычные сроки выполнения заказа?
Custom orders typically ship in 10-60 days depending on dimensions, quantity, and processing.
What certifications are provided?
Linsy Aluminum holds ISO 9001, ISO 14001, and ISO 45001 certifications. MTC reports accompany every order. SGS test reports are available on request.
Do you provide cutting to size?
Yes, we offer cutting to custom lengths as well as CNC machining services.
Do you export internationally?
Yes, we export to Europe, South Africa, Brazil, Singapore, Turkey, Japan, South Korea, and other markets.
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.
