{"id":8840,"date":"2025-06-28T08:38:07","date_gmt":"2025-06-28T08:38:07","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&p=8840"},"modified":"2026-07-08T15:01:18","modified_gmt":"2026-07-08T15:01:18","slug":"alliage-daluminium-5456","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/fr\/produit\/alliage-daluminium-5456\/","title":{"rendered":"Alliage d'aluminium 5456"},"content":{"rendered":"

What Is 5456 Aluminum?<\/h2>\n

5456 is a high-magnesium (about 5 percent) non-heat-treatable 5xxx alloy and one of the strongest of the work-hardenable grades. It combines high strength with excellent corrosion resistance in marine and aggressive environments, and is used where 5083 is not quite strong enough.<\/p>\n

Available 5456 Aluminum Products<\/h2>\n

Linsy supplies 5456 in plate, sheet, bar, tube, and extruded profiles. The tempers most commonly supplied are O, H111, H112, H116, and H321<\/strong>. Les dimensions ci-dessous correspondent \u00e0 des plages typiques ; d'autres tailles peuvent \u00eatre discut\u00e9es sur demande.<\/p>\n

T\u00f4le et bobine<\/h3>\n

5456 sheet and coil are supplied in thicknesses from 0.5 mm to 12 mm, widths up to 2600 mm, and lengths up to 6000 mm or cut to size.<\/p>\n

Assiette<\/h3>\n

5456 plate is available from 6 mm up to 120 mm thick, with standard widths up to 3000 mm, commonly in H321 or H116.<\/p>\n

Barre (ronde, plate, carr\u00e9e)<\/h3>\n

Les barres rondes, plates et carr\u00e9es sont produites en diam\u00e8tres ou longueurs de c\u00f4t\u00e9 de 6 mm \u00e0 300 mm, g\u00e9n\u00e9ralement en H111, H112 ou O.<\/p>\n

Tube et tuyau<\/h3>\n

5456 tube and pipe are supplied in outer diameters from 6 mm to 400 mm with wall thicknesses from 0.5 mm to 40 mm, in H116 or H321 for marine service.<\/p>\n

Profil\u00e9 extrud\u00e9<\/h3>\n

Extruded angles, channels, and custom profiles are available on request, normally in H111 or H112 temper.<\/p>\n

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

5456 is identified by the following common standards and designations.<\/p>\n\n\n\n\n\n\n\n
Standard<\/th>\nD\u00e9signation<\/th>\n<\/tr>\n<\/thead>\n
AA<\/td>\n5456<\/td>\n<\/tr>\n
UNS<\/td>\nA95456<\/td>\n<\/tr>\n
EN AW<\/td>\nEN AW-AlMg5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Composition chimique<\/h2>\n

The typical composition of 5456 aluminum is listed below in weight percent, with aluminum as the balance.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00c9l\u00e9ment<\/th>\nComposition (%)<\/th>\n<\/tr>\n<\/thead>\n
Silicium (Si)<\/td>\n0,25 max<\/td>\n<\/tr>\n
Fer (Fe)<\/td>\n0,40 max<\/td>\n<\/tr>\n
Cuivre (Cu)<\/td>\n0,10 max<\/td>\n<\/tr>\n
Mangan\u00e8se (Mn)<\/td>\n0,50 \u2013 1,00<\/td>\n<\/tr>\n
Magn\u00e9sium (Mg)<\/td>\n4.7 – 5.5<\/td>\n<\/tr>\n
Chrome (Cr)<\/td>\n0,05 \u2013 0,20<\/td>\n<\/tr>\n
Zinc (Zn)<\/td>\n0,25 max<\/td>\n<\/tr>\n
Titane (Ti)<\/td>\n0,20 max<\/td>\n<\/tr>\n
Autres \u00e9l\u00e9ments (chacun)<\/td>\n0.05<\/td>\n<\/tr>\n
Autres \u00e9l\u00e9ments (total)<\/td>\n0.15<\/td>\n<\/tr>\n
Aluminium (Al)<\/td>\n\u00c9quilibre<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Propri\u00e9t\u00e9s m\u00e9caniques selon le traitement thermique<\/h2>\n

Les valeurs ci-dessous sont typiques pour les produits lamin\u00e9s et extrud\u00e9s et doivent \u00eatre confirm\u00e9es par le certificat d'essai de l'usine pour l'\u00e9tat et l'\u00e9paisseur command\u00e9s.<\/p>\n\n\n\n\n\n\n\n\n\n
Temp\u00e9rer<\/th>\nR\u00e9sistance \u00e0 la traction (MPa)<\/th>\nLimite d'\u00e9lasticit\u00e9 (MPa)<\/th>\n\u00c9longation (%)<\/th>\n<\/tr>\n<\/thead>\n
O<\/td>\n310 – 340<\/td>\n145 min<\/td>\n18<\/td>\n<\/tr>\n
H111<\/td>\n310 min<\/td>\n180 min<\/td>\n14<\/td>\n<\/tr>\n
H112<\/td>\n310 min<\/td>\n180 min<\/td>\n12<\/td>\n<\/tr>\n
H116<\/td>\n310 min<\/td>\n230 min<\/td>\n12<\/td>\n<\/tr>\n
H321<\/td>\n310 min<\/td>\n230 min<\/td>\n12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

Specify H116 or H321 for marine, armor, and structural parts exposed to corrosion. H111 and H112 are used for structural and welded components, while O is chosen for heavy forming.<\/p>\n

Caract\u00e9ristiques principales<\/h2>\n

Haute r\u00e9sistance<\/h3>\n

Among work-hardenable alloys, 5456 ranks near the top for as-fabricated strength.<\/p>\n

R\u00e9sistance \u00e0 la corrosion<\/h3>\n

It performs well in seawater and chemical environments and resists exfoliation and stress corrosion cracking better than many alternatives.<\/p>\n

Soudabilit\u00e9<\/h3>\n

It welds with MIG\/TIG using compatible 5xxx fillers, though care is needed to avoid sensitization in thick sections.<\/p>\n

Formabilit\u00e9<\/h3>\n

Formability is moderate; heavily strain-hardened tempers are less formable than O or H111.<\/p>\n

Applications<\/h2>\n