Kloeckner Metals supplies 5251 aluminum sheet, a popular alloy for marine environments, across its 40+ branches.
| Grade | Sizes Routinely Stocked | ||
|---|---|---|---|
| Temper | Thickness (Metric/Imperial) | Width | Length |
| 5251-O | Inquire for sizes | ||
| 5251-H22 | Inquire for sizes | ||
| 5251-H24 | Inquire for sizes | ||
| 5251-H26 | Inquire for sizes |
Though this grade is non-heat treatable, it has great ductility and is easily cold worked in the annealed condition. It has high fatigue strength, good weldability, and very good corrosion resistance, especially in marine atmospheres. It is available in the O, H22, H24, and H26 tempers.
This aluminum is excellent in marine environments due to its corrosion resistance. Other advantages include excellent weldability and workability. Machinability varies depending on the specific temper.
It is often used in the aircraft, marine, automotive, and food processing industries.
Common applications for this grade include small marine craft, architecture, aircraft parts, general sheet metal work, auto paneling, and food processing equipment, components, and systems.
Machinability for this grade depends on the temper. The harder the alloy, the easier it is to machine. For the softer tempers, including the annealed condition and H32, machinability is poor.
This grade has excellent weldability.
This grade is not heat treatable.
This aluminum is excellent in marine environments due to its corrosion resistance. Other advantages include excellent weldability and workability. Machinability varies depending on the specific temper.
It is often used in the aircraft, marine, automotive, and food processing industries.
Common applications for this grade include small marine craft, architecture, aircraft parts, general sheet metal work, auto paneling, and food processing equipment, components, and systems.
Machinability for this grade depends on the temper. The harder the alloy, the easier it is to machine. For the softer tempers, including the annealed condition and H32, machinability is poor.
This grade has excellent weldability.
This grade is not heat treatable.
| Mg | Cr | Cu | Fe | Mn | Si | Zn | Ti |
|---|---|---|---|---|---|---|---|
| 1.70 - 2.40% | 0.15% max | 0.15% max | 0.5% max | 0.10-0.50% | 0.25% max | 0.15% max | 0.15% max |
| Grade | Strength | Elongation | |
|---|---|---|---|
| Temper | Ultimate Tensile Strength | Yield Set 0.2% | % at 50mm |
| 5251-O | 170 - 215 MPa | 65 MPa | 15-20 |
ANSWER:
Though these two grades are similar in composition, they are not always interchangeable in function. One striking difference is the yield strength. It is significantly lower in 5251.
ANSWER:
This grade tolerates a range of atmospheric environments because of its magnesium content. The percent of magnesium in this alloy is low enough that it withstands stress corrosion cracking. Its excellent corrosion resistance makes it suitable for marine applications.
ANSWER:
5251-H36 and 5251-H38 have the highest tensile strengths.
ANSWER:
Though these two grades are similar in composition, they are not always interchangeable in function. One striking difference is the yield strength. It is significantly lower in 5251.
ANSWER:
This grade tolerates a range of atmospheric environments because of its magnesium content. The percent of magnesium in this alloy is low enough that it withstands stress corrosion cracking. Its excellent corrosion resistance makes it suitable for marine applications.
ANSWER:
5251-H36 and 5251-H38 have the highest tensile strengths.
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