5251 aluminiumlegering

What Is 5251 Aluminum Alloy Aluminum?

5251 Aluminum Alloy (AlMg2) is a non-heat-treatable aluminum-magnesium (5xxx) alloy. Its strength comes from magnesium in solid solution and strain hardening, not heat treatment. It offers good corrosion resistance—especially in marine and industrial environments—and welds well, which makes it a common choice for structures exposed to water, chemicals, or cycling loads.

Available 5251 Aluminum Alloy Aluminum Products

5251 Aluminum Alloy is supplied in several forms and tempers. Standard size ranges are below; other dimensions can be discussed with our team.

Sheet & Plate

Artikel	Bereik
Dikte	0.5 – 150 mm
Breedte	1000 – 3000 mm
Lengte	1000 – 6000 mm
Veelvoorkomende hardingen	O, H22, H24, H32, H34, H38

Bar (Round / Flat / Square)

Artikel	Bereik
Diameter / side	6 – 400 mm
Lengte	1000 – 6000 mm
Veelvoorkomende hardingen	O, H22, H24, H32, H34, H38

Tube & Pipe

Artikel	Bereik
Buitendiameter	6 – 400 mm
Wanddikte	0.5 – 40 mm
Lengte	1000 – 6000 mm
Veelvoorkomende hardingen	O, H22, H24, H32, H34, H38

Wire & Coil

Artikel	Bereik
Diameter	0.8 – 12 mm
Spoelgewicht	10 – 500 kg
Size tolerance	± 0.05 mm
Veelvoorkomende hardingen	O, H22, H24, H32, H34, H38

Specificaties en gelijkwaardige benamingen

Standaard	Benaming
AA (USA)	5251 aluminiumlegering
EN AW	AlMg2
Serie	5000 (Al-Mg, non-heat-treatable)

Chemische samenstelling

Element	Gewicht %
Si	0,40 max
Fe	0,50 max
Cu	0,15 max
Mn	0.10 – 0.50
Mg	1.7 – 2.4
Cr	0,30 max
Zn	maximaal 0,20
Ti	maximaal 0,20
Al	Saldo

Values are typical AA composition ranges; confirm against the ordered specification and the supplied MTC.

Mechanische eigenschappen per hardingsgraad

Temper	Tensile (MPa)	Yield (MPa)	Rek (%)	Brinell
O	210	90	18	55
H22 / H32	230	130	14	60
H24 / H34	250	160	10	65
H38	270	200	7	70

Mechanical values are representative room-temperature typicals for plate, sheet, or bar and should be confirmed against the ordered thickness and the supplied MTC.

Gids voor het kiezen van de juiste temperatuur

• O (gegloeid): softest, best formability and corrosion resistance; for deep drawing and welding.
• H1xx / H2xx / H3xx: strain-hardened tempers with increasing strength and decreasing ductility.
• H116 / H321: stabilized tempers for marine plate with good exfoliation-corrosion resistance.

Choose the softest temper that meets the strength need to keep forming and welding straightforward.

Belangrijkste kenmerken

Matige sterkte

A medium-strength 5xxx alloy with good all-round properties for general fabrication.

Corrosiebestendigheid

Very good in marine and outdoor environments; suitable for boat and transport use.

Weldability and formability

Welds well and forms readily in softer tempers.

Toepassingen

• Boat hulls and marine components
• Drukvaten
• Wall panels and cladding
• Voertuigframes
• Road and transport signage

Opmerkingen over bewerking en oppervlakteafwerking

5251 Aluminum Alloy is a non-heat-treatable 5xxx alloy, so strength comes from strain hardening (H-tempers), not heat treatment. It cuts, drills, and welds well with standard aluminum tooling.

• Snijden: CNC machining, laser cutting, and sawing are supported.
• Lassen: TIG and MIG welding with matching or compatible 5xxx filler.
• Vormen: good cold formability in O and soft H-tempers.
• Oppervlakteafwerking: mill finish, anodizing, polishing, powder coating, or PVC film protection.

Note: anodized color of 5xxx alloys can differ slightly from 6xxx alloys; confirm the finish on a sample if color match matters.

Kwaliteitsdocumenten en inspectie

Every 5086 order ships with a Mill Test Certificate (MTC) that reports the actual chemical analysis and mechanical results for the supplied material. Third-party SGS or equivalent test reports can be arranged on request for project or tender requirements.

• MTC (EN 10204 3.1 or 3.2) with every order
• Dimensional inspection against the agreed tolerance
• Surface and visual check before packing
• Material traceability by heat / lot number

Why Choose Linsy for 5251 Aluminum Alloy

Linsy Aluminum is a Shenzhen-based aluminum supplier with more than 20 years of experience serving marine, transport, and general engineering customers. We supply 1000–8000 series material in plate, bar, tube, wire, coil, profile, and block forms.

• ISO 9001, ISO 14001, and ISO 45001 certified management systems
• MTC with every order and SGS test reports available on request
• CNC machining, laser cutting, welding, and surface finishing support
• Typical custom lead time 10–60 days, with low minimum order quantities

For a quote, share your alloy, temper, dimensions, quantity, and any certificate requirements.

Gerelateerde bronnen

• 5251 Aluminum Buyer’s Guide
• 5052 aluminiumlegering
• 5083 Marine-Grade Aluminum
• Aluminum Tempers Explained

5251 Aluminum Alloy Aluminum FAQ

Is 5251 heat treatable?

No. 5251 is a non-heat-treatable 5xxx alloy; strength comes from magnesium and strain hardening.

What tempers are available for 5251?

O, H22, H24, H32, H34, and H38 are typical for sheet, bar, and tube.

5251 vs 5052?

Both are medium-strength 5xxx alloys with similar corrosion behavior. Choice often comes down to available temper, thickness, and local specification.

Veelgestelde vragen over bestellingen in het algemeen

Wat is de gebruikelijke levertijd?

Custom sizes are usually produced within 10–60 days depending on alloy, temper, and quantity. Confirm the schedule when you request a quote.

Levert u fabriekstestcertificaten?

Yes. An MTC is provided with every order, and third-party test reports can be arranged on request.

Welke oppervlakteafwerkingen zijn beschikbaar?

Mill finish, anodizing, polishing, powder coating, and PVC film are available depending on the form.

Wat is de minimale bestelhoeveelheid?

We support low MOQs for custom requests. Share your required size and quantity for a quote.