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5251

ASTM B211 / AlMg2Mn0.3 / 5251 / H14

Chemical Properties % Value
Silicon (Si)0,00 - 0,40
Chromium (Cr)0,00 - 0,15
Manganese (Mn)0,10 - 0,50
Magnesium (Mg)1,70 - 2,40
Copper (Cu)0,00 - 0,15
Titanium (Ti)0,00 - 0,15
Iron (Fe)0,00 - 0,50
Zinc (Zn)0,00 - 0,15
Aluminium (Al)Balance
Physical Properties Value
Density2,69 g/cm³
Melting Point605 °C
Thermal Expansion23.6 µm/m.°C
Modulus of Elasticity70 GPa
Thermal Conductivity150 W/m.K
Electrical Resistivity%38 IACS
Mechanical Properties Value
Proof Strength190 MPa
Yield Strength220 MPa
Shear Strength130 MPa
Elongation A50 mm5%
Hardness64 HB

The 5251 H14 aluminum alloy is known for its excellent mechanical properties and high corrosion resistance, making it ideal for various industrial applications. It is lightweight yet durable, and it is also suitable for anodizing, which enhances its surface appearance and provides additional protection against environmental factors. Anodizing helps the alloy resist wear and corrosion while offering an aesthetically pleasing finish.

This alloy stands out for its weldability, allowing for easy welding when proper techniques are employed. Additionally, it has good bending properties, providing high machinability during shaping processes. Furthermore, 5251 H14 is capable of withstanding high-vibration environments, making it suitable for dynamic applications such as the automotive and aerospace industries, where vibration resistance is essential.

5251 H14 aluminum alloy is highly resistant to corrosion, even in harsh environments such as seawater, which makes it a popular choice in the maritime industry. Its long lifespan and durability are key advantages. However, some of its drawbacks include a decrease in hardness at low temperatures and performance reduction in certain abrasive environments.

Overall, 5251 H14 aluminum alloy is a versatile material with wide applications across various sectors, including industrial production, automotive, aerospace, and maritime industries. Its lightweight nature, weldability, and bending properties offer significant advantages, while its vibration resistance and corrosion resistance ensure reliable performance in demanding environments.

 

ALLOY DESIGNATIONS
 
5251 H14 has the following standard designations and specifications.

Extruded Round/Flat Bars and Tubes per;  5251 H14, ISO AlMg2Mn0.3, DIN AlMg2, WNR 3.3525, UNE L-3361, A-G2M, ASTM B209, UNS A95251

Cold Drawn Round/Flat Bars per; 5251 H14ISO AlMg2Mn0.3, ASTM B211, UNS A95251, DIN AlMg2, WNR 3.3525, BS 3 L56

 

Choosing Factors for 5251 H14

  • Strength: Average
  • Machining: Mediocre
  • Weldability: Excellent
  • Formability: Okay
  • Corrosion Resistance: Very good
  • Heat Treating: None
 

Some Well-Known Applications for 5251 H14

In car panels in the automotive industry.

In furniture tubings,

It is also used in silo bunkers.

 

SUPPLIED FORMS

5251 H14 is produced/supplied in tube/profile, round/flat bar forms.
  • Round/Flat Bar
  • Tube/Profile
DELIVERY:
Mechanical Properties
Thickness (mm) Proof Strength (Min.) Yield Strength (Min.) Elongation A50 mm %
Over 0,2 up to & incl. 0,5 170 270 %3
Over 0,5 up to & incl. 1,2 170 270 %4
Over 1,5 up to & incl. 3,0 170 270 %5
Over 3,0 up to & incl. 4,0 170 270 %7