{"id":9039,"date":"2025-09-01T01:57:38","date_gmt":"2025-09-01T01:57:38","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&p=9039"},"modified":"2026-07-08T15:01:18","modified_gmt":"2026-07-08T15:01:18","slug":"barre-carree-en-aluminium-7075","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/fr\/produit\/barre-carree-en-aluminium-7075\/","title":{"rendered":"Barre carr\u00e9e en aluminium 7075-O\/T6\/T651\/T73\/T7351"},"content":{"rendered":"

What Is 7075 Aluminum Square Bar?<\/h2>\n

7075 aluminum square bar is one of the strongest commercially available aluminum sections, with zinc as the primary alloying element delivering strength comparable to many steels at roughly one-third the weight. Linsy supplies 7075 square bar in T6, T651, T7351 and T7451 tempers for aircraft structures, molds, dies, fixtures and high-stress machine parts where rigidity is non-negotiable. In the T6 and T651 tempers it reaches peak tensile strength (~570 MPa); the T73\/T7351 and T7451 tempers trade some strength for improved resistance to stress-corrosion cracking, which matters for thicker sections and outdoor or corrosive service.<\/p>\n

Produits disponibles en aluminium 7075<\/h2>\n

Barre carr\u00e9e en aluminium 7075<\/h3>\n\n\n\n\n
Side (mm)<\/th>\nLongueur (mm)<\/th>\nTemp\u00e9rer<\/th>\n<\/tr>\n
5 \u2013 200<\/td>\nup to 16,000<\/td>\nO, T6, T651, T7351, T7451<\/td>\n<\/tr>\n
Custom sizes available on request<\/td>\n\u2014<\/td>\n\u2014<\/td>\n<\/tr>\n<\/table>\n

Sp\u00e9cifications et d\u00e9signations \u00e9quivalentes<\/h2>\n

7075 square bar is supplied to ASTM B221 \/ AMS 4154 (T6\/T651) and AMS 4078 (T7351) where applicable, with GB\/T 3191 and EN 754 references available on request. EN AW designation: EN AW-7075.<\/p>\n

Composition chimique<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00c9l\u00e9ment<\/th>\nContenu (%)<\/th>\n<\/tr>\n
Si<\/td>\n0,40 max<\/td>\n<\/tr>\n
Fe<\/td>\n0,50 max<\/td>\n<\/tr>\n
Cu<\/td>\n1.2 - 2.0<\/td>\n<\/tr>\n
Mn<\/td>\n0,30 max<\/td>\n<\/tr>\n
Mg<\/td>\n2.1 - 2.9<\/td>\n<\/tr>\n
Cr<\/td>\n0.18 - 0.28<\/td>\n<\/tr>\n
Zn<\/td>\n5.1 - 6.1<\/td>\n<\/tr>\n
Ti<\/td>\n0,20 max<\/td>\n<\/tr>\n
Zr<\/td>\n0.05 - 0.25<\/td>\n<\/tr>\n
Autres (chacun)<\/td>\n0,05 max<\/td>\n<\/tr>\n
Autres (total)<\/td>\n0,15 max<\/td>\n<\/tr>\n
Al<\/td>\n\u00c9quilibre<\/td>\n<\/tr>\n<\/table>\n

Propri\u00e9t\u00e9s m\u00e9caniques selon le traitement thermique<\/h2>\n\n\n\n\n\n\n\n
Temp\u00e9rer<\/th>\nR\u00e9sistance \u00e0 la traction (MPa)<\/th>\nLimite d'\u00e9lasticit\u00e9 (MPa)<\/th>\nElong. (%)<\/th>\n<\/tr>\n
O<\/td>\n230<\/td>\n105<\/td>\n10 min<\/td>\n<\/tr>\n
T6<\/td>\n570<\/td>\n505<\/td>\n11<\/td>\n<\/tr>\n
T651<\/td>\n570<\/td>\n505<\/td>\n11<\/td>\n<\/tr>\n
T7351<\/td>\n505<\/td>\n435<\/td>\n11<\/td>\n<\/tr>\n
T7451<\/td>\n525<\/td>\n455<\/td>\n10<\/td>\n<\/tr>\n<\/table>\n

Guide de s\u00e9lection des temp\u00e9raments<\/h2>\n

T6 \/ T651<\/strong> \u2014 maximum strength, best for machined parts and fixtures. T7351 \/ T7451<\/strong> \u2014 improved stress-corrosion resistance for structural parts in corrosive or outdoor service. 7075 is not a marine-grade alloy; for seawater exposure consider a cladding or a different grade and confirm with our engineers.<\/p>\n

Caract\u00e9ristiques principales<\/h2>\n

Exceptional Strength-to-Weight<\/h3>\n

Among the strongest aluminum sections, ideal where mass matters.<\/p>\n

Bonne usinabilit\u00e9<\/h3>\n

Cuts cleanly in T6\/T651; use rigid tooling and flood coolant.<\/p>\n

Soudabilit\u00e9 limit\u00e9e<\/h3>\n

7075 is generally not recommended for fusion welding; use mechanical fastening.<\/p>\n

Applications<\/h2>\n

Aircraft structures, molds and dies, high-stress machine parts, fasteners and fittings, defense and sporting goods.<\/p>\n

Remarques concernant le traitement et la finition de surface<\/h2>\n

We offer CNC machining, precision saw cutting, anodizing and polishing. 7075 work-hardens; use sharp tooling. For corrosion service, anodizing plus a sealant is advised.<\/p>\n

Documents relatifs \u00e0 la qualit\u00e9 et contr\u00f4le qualit\u00e9<\/h2>\n

Every order ships with an MTC (material test certificate). SGS third-party test reports are available on request. Linsy holds ISO 9001, ISO 14001 and ISO 45001.<\/p>\n

Why Choose Linsy for 7075 Square Bar<\/h2>\n

Linsy Aluminum is a Shenzhen-based aluminum supplier with 20+ years of experience across the 1000\u20138000 series. We stock and custom-cut 7075 square bar, support CNC machining and surface finishing, and deliver MTC documentation with every order. Typical custom lead time is 10\u201360 days.<\/p>\n

Ressources connexes<\/h2>\n

Explore these in-depth guides from our technical library:<\/p>\n