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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

Aluminium alloy 5251 is a medium strength alloy possessing good ductility and therefore good formability. Alloy 5251 is known for work hardening rapidly and is readily weldable. It also possesses high corrosion resistance particularly in marine 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