HOME METALS ALUMINIUM COMMERCIAL ALUMINIUM ALLOYS 5251 Aluminium H22 Sheet & Plate

Aluminium, Commercial Alloy

5251 Aluminium H22 Sheet & Plate

Medium strength aluminium alloy with good ductility.

Aluminium alloy 5251 has good formability and is ideal for general sheet metal work where higher mechanical properties are required.

Mechanical properties shown are for H22 condition.

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Range

Sheet Size Sheet Thicknesses Plate Thicknesses
2000 x 1000 1.0mm - 1.5mm 4.0mm - 6.0mm
2500 x 1250 1.0mm - 3.0mm 4.0mm - 6.0mm
3000 x 1250 3.0mm 4.0mm - 6.0mm

PLEASE NOTE

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5251 H22 Aluminium Related Specifications

System / Standard Country / Region Grade / Designation
AA USA 5251-H22
UNS International A95251 (5251-H22)
EN / DIN Europe EN AW-5251-H22 / 3.3525
EN Name Europe AlMg2Mn0.3-H22
GB China 5251-H22 (GB/T 3190)
BS UK 5251 (N4) H22
AFNOR France A-G2M-H22

Properties

Chemical Composition

Alloy 5251

Chemical Element % Present
Manganese (Mn) 0.10 - 0.50
Copper (Cu) 0.00 - 0.15
Magnesium (Mg) 1.70 - 2.40
Silicon (Si) 0.00 - 0.40
Zinc (Zn) 0.00 - 0.15
Chromium (Cr) 0.00 - 0.15
Titanium (Ti) 0.00 - 0.15
Other (Each) 0.00 - 0.05
Others (Total) 0.00 - 0.15
Iron (Fe) 0.00 - 0.50
Aluminium (Al) Balance

Sheet and Plate 0.2mm to 25mm

Mechanical Property Value
Proof Stress 120 Min MPa
Tensile Strength 190 - 230 MPa
Hardness Brinell 56 HB
Physical Property Value
Density 2.69 g/cm³
Melting Point 625 °C
Thermal Expansion 25 x 10-6/K
Modulus of Elasticity 70 GPa
Thermal Conductivity 134 W/m.K
Electrical Resistivity 0.044 x 10-6 Ω .m

Applications

Characteristics

Additional Information

Fabrication
Process Rating
Workability - Cold Very Good
Machinability Average

Aluminium alloy 5251 is a readily weldable alloy.

The recommended filler wire is 5356 when welding alloy 5251 to itself, 6XXX series alloys, 7XXX series alloys and most other 5XXX alloys.

When welding alloy 5251 to 5005, 5020, 1XXX series or 3XXX series alloys, the recommended filler wire is 4043.

Process Rating
Weldability - Gas Very Good
Weldability - Arc Very Good
Weldability - Resistance Very Good
Brazability Poor

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DISCLAIMER

This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon. Please note that the ‘Datasheet Update’ date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed S online) and manufacturers’ data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources. Material supplied by the Company may vary significantly from this data but will conform to all relevant and applicable standards. As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied. Advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. All transactions are subject to the Company’s current Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.

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