{"id":9034,"date":"2025-08-31T13:16:33","date_gmt":"2025-08-31T13:16:33","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&p=9034"},"modified":"2026-07-07T08:32:43","modified_gmt":"2026-07-07T08:32:43","slug":"barra-piatta-in-alluminio-2024","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/it\/prodotto\/barra-piatta-in-alluminio-2024\/","title":{"rendered":"2024-O\/T3\/T4\/T351\/T851 Barra piatta in alluminio"},"content":{"rendered":"

What Is 2024 Aluminum Flat Bar?<\/h2>\n

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.<\/p>\n

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.<\/p>\n

Available 2024 Aluminum Flat Bar Products<\/h2>\n

Standard Flat Bar Sizes<\/h3>\n\n\n\n\n
Lega<\/th>\nTemperamento<\/th>\nLarghezza (mm)<\/th>\nSpessore (mm)<\/th>\nLunghezza (mm)<\/th>\n<\/tr>\n
2024 Flat Bar<\/td>\nO, T3, T4, T351, T851<\/td>\n10-300<\/td>\n3-80<\/td>\n1000-6000<\/td>\n<\/tr>\n
Dimensioni personalizzate disponibili su richiesta<\/td>\n<\/tr>\n<\/table>\n

Common Size Combinations<\/h3>\n\n\n\n\n\n\n\n\n
Larghezza (mm)<\/th>\nSpessore (mm)<\/th>\nApplicazione tipica<\/th>\n<\/tr>\n
25<\/td>\n5<\/td>\nStructural brackets, supports<\/td>\n<\/tr>\n
40<\/td>\n8<\/td>\nMachine parts, guide rails<\/td>\n<\/tr>\n
50<\/td>\n10<\/td>\nFittings, mounting plates<\/td>\n<\/tr>\n
75<\/td>\n15<\/td>\nHigh-stress structural components<\/td>\n<\/tr>\n
100<\/td>\n20<\/td>\nAerospace structural parts<\/td>\n<\/tr>\n
150<\/td>\n30<\/td>\nHeavy-duty brackets, tooling<\/td>\n<\/tr>\n<\/table>\n

Specifiche e denominazioni equivalenti<\/h2>\n\n\n\n\n\n\n\n\n\n
Standard<\/th>\nDenominazione<\/th>\n<\/tr>\n
AA (USA)<\/td>\n2024<\/td>\n<\/tr>\n
EN (Europa)<\/td>\nEN AW-2024<\/td>\n<\/tr>\n
DIN (Germania)<\/td>\n3.1355 \/ AlCu4Mg1<\/td>\n<\/tr>\n
ISO<\/td>\nAlCu4Mg1<\/td>\n<\/tr>\n
UNS<\/td>\nA92024<\/td>\n<\/tr>\n
GB (Cina)<\/td>\n2A12<\/td>\n<\/tr>\n
JIS (Giappone)<\/td>\nA2024<\/td>\n<\/tr>\n<\/table>\n

Composizione chimica<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Elemento<\/th>\nContenuto (%)<\/th>\n<\/tr>\n
Si<\/td>\n0,50 max<\/td>\n<\/tr>\n
Fe<\/td>\n0,50 max<\/td>\n<\/tr>\n
Cu<\/td>\n3.8-4.9<\/td>\n<\/tr>\n
Mn<\/td>\n0.30-0.90<\/td>\n<\/tr>\n
Mg<\/td>\n1.2-1.8<\/td>\n<\/tr>\n
Cr<\/td>\n0,10 max<\/td>\n<\/tr>\n
Zn<\/td>\n0,25 max<\/td>\n<\/tr>\n
Ti<\/td>\n0,15 max<\/td>\n<\/tr>\n
Altri (ciascuno)<\/td>\n0,05 max<\/td>\n<\/tr>\n
Altri (totale)<\/td>\n0,15 max<\/td>\n<\/tr>\n
Al<\/td>\nEquilibrio<\/td>\n<\/tr>\n<\/table>\n

Propriet\u00e0 meccaniche in base al trattamento termico<\/h2>\n\n\n\n\n\n\n\n
Propriet\u00e0<\/th>\n2024-O<\/th>\n2024-T3<\/th>\n2024-T351<\/th>\n2024-T851<\/th>\n<\/tr>\n
Resistenza alla trazione, ultima (MPa)<\/td>\n186<\/td>\n483<\/td>\n462<\/td>\n517<\/td>\n<\/tr>\n
Resistenza alla trazione, snervamento (MPa)<\/td>\n76<\/td>\n345<\/td>\n324<\/td>\n455<\/td>\n<\/tr>\n
Resistenza al taglio (MPa)<\/td>\n124<\/td>\n283<\/td>\n262<\/td>\n276<\/td>\n<\/tr>\n
Allungamento a rottura (%)<\/td>\n20<\/td>\n18<\/td>\n17<\/td>\n7<\/td>\n<\/tr>\n
Durezza (Brinell)<\/td>\n47<\/td>\n120<\/td>\n120<\/td>\n137<\/td>\n<\/tr>\n<\/table>\n

Guida alla scelta della tempra<\/h2>\n\n\n\n\n\n\n\n
Temperamento<\/th>\nCaratteristiche<\/th>\nTypical Use for Flat Bar<\/th>\n<\/tr>\n
O<\/td>\nRicotto, massima formabilit\u00e0, resistenza minima<\/td>\nForming, bending, subsequent machining before heat treatment<\/td>\n<\/tr>\n
T3<\/td>\nSolution heat-treated, cold worked, naturally aged. Highest strength<\/td>\nAerospace brackets, structural supports, fittings<\/td>\n<\/tr>\n
T4<\/td>\nAcciaio trattato termicamente, invecchiato naturalmente (senza lavorazione a freddo)<\/td>\nComponents requiring moderate forming after heat treatment<\/td>\n<\/tr>\n
T351<\/td>\nTrattato termicamente in soluzione, sottoposto a stress da stiramento, invecchiato naturalmente<\/td>\nMachined aerospace parts, precision components<\/td>\n<\/tr>\n
T851<\/td>\nTrattato termicamente in soluzione, sottoposto a distensione, invecchiato artificialmente<\/td>\nHigh-temperature structural applications<\/td>\n<\/tr>\n<\/table>\n

Caratteristiche principali<\/h2>\n

Elevato rapporto resistenza\/peso<\/h3>\n

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.<\/p>\n

Lavorabilit\u00e0<\/h3>\n

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.<\/p>\n

Resistenza alla fatica<\/h3>\n

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.<\/p>\n

Resistenza alla corrosione<\/h3>\n

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.<\/p>\n

Applicazioni<\/h2>\n