5251 Aluminium sheet
5251 is a medium strength metal known for its ductility and formability
This grade of Aluminium alloy is best known as a metal that can harden rapidly and is weldable easily.
The 5251 alloy is also poplular because of its high resistance to corrosion, and is commonly used in marine, coastal environments.
5251 Aluminium sheet Tempering
You can temper 5251 into many forms, the most popular forms of 5251 are:
H22 - Work hardened and partially annealed to a quarter hard state
H24 - Work hardened and partially annealed to a half hard state
H26 - Work hardened and partially annealed to a three quarter hard state
0 – Wrought and fully annealed
5251 Aluminium sheet Chemical Composition
5251 Aluminium sheet Welding
Grade 5251 Aluminium alloy is a good wieldable alloy.
When welding this alloy to its self it is recommended that use filler wire is 5356.
Filler wire 5356 is also recommended if you are welding 5251 alloy to an alloy of the 6000 series, 7000 series and the majority of 5000 series.
If you are welding either 5251 to 5005, or 5020 or an alloy of the 1000 series and the 3000 series of alloys then we suggest you us filler wire 4043.
5251 Aluminium sheet Mechanical Properties
|Grade||Tensile Strength (MPa)||Proof Stress 0.2% (MPa)||Shear Strength (MPa)||Hardness Vickers (HV)||Elongation A5 (%)|
Aluminium alloy 5251 is known for work hardening rapidly and is readily weldable. It also possesses high corrosion resistance particularly in marine environments.
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.
5251 is typically used in:
- Panelling and pressings
- Marine structures
- Aircraft parts
- Vehicle panels
- Furniture tubing
Mechanical Properties shown are for H22 condition - Mechanical properties for other tempers are shown on page 2.
Spec: BS EN573-3:2009
Chemical Element % Present
- Manganese (Mn) 0.10 - 0.50
- Copper (Cu) 0.0 - 0.15
- Magnesium (Mg) 1.70 - 2.40
- Silicon (Si) 0.0 - 0.40
- Zinc (Zn) 0.0 - 0.15
- Chromium (Cr) 0.0 - 0.15
- Titanium (Ti) 0.0 - 0.15
- Other (Each) 0.0 - 0.05
- Others (Total) 0.0 - 0.15
- Iron (Fe) 0.0 - 0.50
- Aluminium (Al) Balance
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