Aleación de aluminio 5082

What Is 5082 Aluminum?

5082 aluminum, also written AlMg4.5, is a non-heat-treatable 5xxx-series alloy containing about 4.0-5.0% magnesium. It sits between the softer 5052 and the stronger marine grades such as 5083 and 5059. The moderate magnesium level gives 5082 good strength, excellent weldability, and reliable corrosion resistance in marine and industrial environments, while keeping the risk of sensitization low.

Because it is strain-hardenable rather than heat-treatable, 5082 is supplied in O, H111, H112, and the H3x strain-hardened tempers. It is a common choice for ship superstructures, vehicle bodies, pressure equipment, and architectural paneling.

Available 5082 Aluminum Products

Linsy stocks and custom-rolls 5082 in the following forms. Dimensions below are typical production ranges; other sizes can be negotiated on request.

5082 Aluminum Sheet & Plate

Dimensión	Rango típico	Nota
Espesor	0.5 – 150 mm	Placa hasta 150 mm, chapa 0.5 – 6 mm
Anchura	500 – 3000 mm	Borde de laminación o cortado a medida
Longitud	500 – 12000 mm	Longitudes personalizadas disponibles
Temple comunes	O, H111, H112, H32, H34, H38

5082 Aluminum Bar & Rod

Dimensión	Rango típico	Nota
Diámetro	6 – 400 mm	Redonda, cuadrada, hexagonal
Longitud	500 – 12000 mm	Cortado a medida
Temple comunes	O, H111, H112

5082 Aluminum Tube & Pipe

Dimensión	Rango típico	Nota
Diámetro exterior	6 – 400 mm	Sin costura o soldado
Espesor de pared	0.5 – 40 mm
Longitud	500 – 12000 mm	Longitudes personalizadas disponibles
Temple comunes	O, H111, H112

Especificaciones y denominaciones equivalentes

Sistema	Denominación
AA / UNS	5082 / A95082
ES	EN AW-5082 (AlMg4.5)
Normas comunes	ASTM B209, EN 485, EN 573, EN 754

Composición química

Composition below follows the AA 5082 specification. Values are weight percent, balance aluminium.

Elemento	Contenido (%)
Silicio (Si)	0,20 como máximo
Hierro (Fe)	0,35 máx.
Cobre (Cu)	0,15 máx.
Manganeso (Mn)	0.15 – 0.35
Magnesio (Mg)	4.00 – 5.00
Cromo (Cr)	0,15 máx.
Zinc (Zn)	0,25 máx.
Titanio (Ti)	0,10 máx.
Otros (cada uno / total)	0.05 / 0.15
Aluminio (Al)	Saldo

Propiedades mecánicas según el estado de templado

Typical room-temperature properties for 5082 sheet and plate. Values are indicative and should be confirmed against the ordered specification and thickness.

Temple	Resistencia a la tracción (MPa)	Límite elástico (MPa)	Alargamiento (%)	Dureza Brinell (HB)
O	275	125	22	75
H111	305	160	18	85
H32	315	245	14	95
H34	345	285	12	100
H38	380	330	10	110

Guía para la selección del temple

• O / H111 – Soft and formable; best for deep drawing, bending, and complex fabricated parts.
• H112 – As-fabricated temper for plate where moderate strength and flatness are needed.
• H32 / H34 – Balanced strength and formability for panels, bodies, and welded assemblies.
• H38 – Highest strength among common 5082 tempers; use where stiffness matters and forming is minimal.

Características principales

Seawater & Chemical Corrosion Resistance

5082 resists corrosion in seawater and many industrial atmospheres, and its moderate magnesium content keeps sensitization risk low even after welding.

Buena soldabilidad

5082 welds readily with MIG and TIG. Matching or 5xxx filler (e.g. 5356, 5183) preserves corrosion resistance in the weld zone.

Balanced Strength & Formability

The H3x tempers provide useful strength while remaining formable enough for vehicle bodies and panels.

Rendimiento a baja temperatura

Like other 5xxx alloys, 5082 retains toughness at low temperatures, supporting cryogenic and marine use.

Aplicaciones

• Ship and boat superstructures, decks, and hull fittings
• Vehicle bodies, trailers, and transport frames
• Recipientes a presión soldados y tanques de almacenamiento
• Architectural paneling and cladding
• General welded structures and fabricated parts

Notas sobre el procesamiento y el acabado superficial

• Mecanizado: 5082 machines well with standard aluminum tooling; use coolant to avoid built-up edge.
• Soldadura: MIG/TIG with 5xxx filler; preheat is rarely required for thin sections.
• Conformado: O and H111 tempers form easily; verify bend radius for H3x tempers.
• Acabado superficial: Mill finish, brushed, anodized (even grey tone), powder coated, or PVC-film protected.

Documentación de calidad e inspección

Every 5082 order ships with a Mill Test Certificate (MTC) covering chemical composition and mechanical properties. Third-party inspection and SGS test reports are available on request. Linsy’s production is managed under ISO 9001, ISO 14001, and ISO 45001 systems.

Why Choose Linsy for 5082

Linsy is a Shenzhen-based aluminum supplier with more than 20 years of experience across the 1000-8000 series. For 5082 we support sheet, plate, bar, and tube with in-house CNC machining, cutting, welding preparation, and surface finishing. Typical custom lead time is 10-60 days depending on form and quantity, with MTC supplied on every order.

Recursos relacionados

For deeper technical background on 5082 and related alloys, see the following resources from Linsy’s knowledge library:

• 5xxx Series Aluminum Alloys: A Buyer’s Guide – how to select the right Al-Mg alloy for your project
• 5082 vs 5083 Aluminum: Strength and Corrosion Compared – which medium-Mg grade fits your application
• Aluminio de grado marino: Selección de materiales para la construcción de embarcaciones: qué aleaciones están aprobadas para cada condición de servicio
• Comprensión de las designaciones de temple del aluminio: O, H y T: qué significan los códigos de temple y cómo elegir el adecuado

5082 Aluminum FAQ

Is 5082 heat-treatable?

No. 5082 is a non-heat-treatable 5xxx alloy strengthened by strain hardening (the H tempers). It cannot be solution heat treated like 6xxx or 7xxx alloys.

How does 5082 compare to 5083?

5083 has higher magnesium (4.0-4.9% vs 4.0-5.0% nominal but typically stronger) and is the stronger marine grade. 5082 offers slightly lower strength with very good corrosion resistance and formability at lower cost for less critical structures.

Can 5082 be anodized?

Yes, though 5xxx alloys anodise to a grey tone. For a consistent decorative finish, powder coating is often preferred.

What filler should I use to weld 5082?

Use a 5xxx filler such as 5356 or 5183 matched to the service environment.

¿Cuál es el plazo de entrega habitual?

Typical custom lead time is 10-60 days depending on form, temper, and quantity. Contact us with your specification for a firm quote.

Preguntas frecuentes generales sobre pedidos

¿Cuál es la cantidad mínima de pedido?

Las cantidades mínimas de pedido (MOQ) dependen de la forma y el tamaño. Los tamaños de stock más pequeños pueden tener MOQ más bajos; las dimensiones completamente personalizadas se cotizan según la consulta.

¿Proporcionan certificados de prueba de fábrica (MTC)?

Sí. Se suministra un MTC con cada pedido, y se pueden gestionar informes de inspección de SGS o de terceros bajo solicitud.

¿Qué certificaciones posee Linsy?

La producción se gestiona bajo los sistemas ISO 9001, ISO 14001 e ISO 45001. El material se puede suministrar según las normas ASTM, EN, GB y JIS bajo solicitud.

¿Pueden cortar o mecanizar según plano?

Sí. Ofrecemos mecanizado CNC, corte por láser, preparación para plegado y acabado superficial antes del envío.