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Data Sheets

Aluminium Alloy

Commercial Alloy

5052 H32 Triple-Grip Treadplate

Aluminium alloy 5052 in H32 temper has very good corrosion resistance to seawater and marine and industrial atmosphere. It also has very good weldability and good cold formability. It is a medium to high strength alloy with a strength slightly higher than 5251 and a medium to high fatigue strength.

This treadplate is supplied to BS EN 1386.

Alloy 5052-H32 TripleGrip treadplate has a range of useful properties:
~ Decorative Finish
~ Hard Wearing
~ Non-Slip
~ Corrosion Resistant
~ Low Maintenance
~ Anti-Static
~ Light-weight

Chemical Composition

BS EN 573-3:2009
Alloy 5052
Chemical Element % Present
Silicon (Si) 0.0 - 0.25
Copper (Cu) 0.0 - 0.10
Iron (Fe) 0.0 - 0.40
Manganese (Mn) 0.0 - 0.10
Magnesium (Mg) 2.20 - 2.80
Zinc (Zn) 0.0 - 0.10
Chromium (Cr) 0.15 - 0.35
Others (Total) 0.0 - 0.15
Other (Each) 0.0 - 0.05
Aluminium (Al) Balance

Alloy Designations

Alloy 5052 also corresponds to the following standard designations and specifications but may not be a direct equivalent:

Al 2.5Mg Cr

Al Mg2,5

Generic Physical Properties

Physical Property Value
Density 2.68 g/cm³
Melting Point 605 °C
Thermal Expansion 23.7 x10^-6 /K
Modulus of Elasticity 70 GPa
Thermal Conductivity 138 W/m.K
Electrical Resistivity 0.0495 x10^-6 Ω .m

Mechanical Properties

BS EN 573-3:2009
Sheet - 1.5mm to 3mm
Mechanical Property Value
Tensile Strength 210 - 260 MPa
Proof Stress 130 Min MPa
Hardness Brinell 61 HB


Alloy 5052-H32 Aalco TripleGrip Treadplate is typically used in a wide range of structural and decorative applications, including:

~ Factory Flooring

~ Flooring and vertical panels in the road transport industry – commercial vehicles, buses, coaches, fire engines, military & utility vehicles, etc.

~ Railway rolling stock

~ Stations and freight terminals for railways, underground railways, ports, cargo handling, etc.

~ Materials handling equipment such as conveyors, airport baggage carousels,

~ Indoor and outdoor walkways, steps, stairways, gantries, bridges, cranes,

~ Decorative indoor and outdoor panels for architectural / building & construction use

~ Horse boxes, trailers, boat trailers, etc.

Size Range

Size (mm)Weight per plate (kg)
2500 x 1250 x 1.513.9
2500 x 1250 x 2.018.1
2500 x 1250 x 3.026.6


Workability - Cold: Good

Machinability: Acceptable

Weldability - Gas: Good

Weldability - Arc: Very Good

Weldability - Resistance: Very Good

Brazability: Acceptable

Soldeability: Not Recommended

Compared with 5-Bar Treadplate in Alloy 5754-H111

Alloy 5754 has slightly higher corrosion resistance and better weldability than alloy 5052.  The two alloys have similar physical and mechanical properties and fabrication performance.


Tensile Strength and Shear Strength are very similar whilst Proof Strength of 5754 is only 100 as against 175 for TripleGrip.




This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon.

Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed & online) and manufacturers’ data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources.

Material supplied by the Company may vary significantly from this data, but will conform to all relevant and applicable standards.

As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied.

Advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. All transactions are subject to the Company’s current Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.