Aluminum Alloy 5251 Data Sheet

ALUMINUM ALLOY 5251 GENERAL DESCRIPTION :

What is Alloy 5251?

Aluminum alloy 5251 is known for good ductility, rapid work hardening, and excellent corrosion resistance, especially in marine environments. Commonly used in general sheet metal work, it is also weldable and suited for marine, offshore, and industrial applications.

Main Alloy Chemistry Typical

Element

Si

Fe

Cu

Mn

Mg

Zn

Cr

Others 

Al

Maximum Content

0.40

0.50

0.15

0.50

2.40

0.15

0.15

0.15

Remainder

TYPICAL MECHANICAL DATA for 5251 ALUMINUM

Physical Performance Indicators

Tensile Strength (MPa)

Yield Strength (Mpa)

Elongation (%)

5251 - O

180

68

19

5251 - H14

220

190

4

5251 - H18

280

250

2

*LIMITATIONS OF LIABILITY AND DISCLAIMER: HDM shall not be liable for any damages arising from the use of the information contained in this document, or for the applicability of this document to the described “application”. The provided information and data are believed to be accurate to the best of our knowledge, but all data should be considered as typical values only. They are for reference and general information purposes, and are not recommended for specification, design, or engineering purposes. HDM does not provide any warranty, implied or expressed, regarding the creation or accuracy of the data provided in this document.

Product Capacities of Alloy 5251

Typical Uses

5251 aluminum alloy is commonly used in the automotive industry, particularly for vehicle body panels and structural components. This medium-strength alloy is valued for its excellent corrosion resistance, good weldability, and high formability.
These properties make it suitable for manufacturing automotive panels that require both durability and the ability to withstand various environmental conditions.
Additionally, its capacity for rapid work hardening ensures enhanced strength during the forming process, making it ideal for parts that need to maintain structural integrity under stress.

FAQs

What is the Difference Between 5052 and 5251 Aluminium?

The primary differences between 5052 and 5251 aluminium lie in their composition and mechanical properties. 5052 aluminium contains more magnesium compared to 5251, giving 5052 higher strength and better corrosion resistance. 5251 aluminium, with its higher manganese content, offers better formability and is easier to weld.

What is the Difference Between 5083 and 5251?

The main difference between 5083 and 5251 aluminium is their strength and corrosion resistance. 5083 aluminium contains higher magnesium content, providing superior strength and excellent corrosion resistance, especially in marine environments. On the other hand, 5251 aluminium, with its lower magnesium content and higher manganese, offers good formability and moderate strength.

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