Grade 5754 is a medium strength alloy. For comparison it is not a strong as grades 6082 or 5083, but 5754 is stronger than grade 5251.

Grade 5754 is most commonly used to produce aluminium 5 bar treadplate (often referred to as aluminium chequer plate). Usually aluminium chequer plate is manufactured from grade 5754 aluminium, in H114 condition – which is half hard.

Corrosion resistance

As with the other 5000 series grades, 5754 H11 aluminium has excellent resistance to both chemical and atmospheric attack. Grade 5754 aluminium performs particularly well in sea water / salt water and for this reason is often referred to as a marine grade of aluminium. This makes aluminium chequer plate, supplied in grade 5754, the perfect grade for walkways and floorings on boats.

Welding

Grade 5754 aluminium chequer plate is suitable for gas, arc and resistance welding.

Machining

Grade 5754 aluminium has less than average machineability.

Cold working / forming

Grade 5754 chequer plate is excellent for cold working. It is a fully bendable grade of aluminium that is designed so that it will not crack or split during folding – making it perfect for fabricating platforms, steps, trays etc.

Anodising / Polishing / Powder Coating

Grade 5754 aluminium is excellent for all types of anodising, powder coating & it can also be polished.

Grade 5251 is a medium strength alloy, usually supplied in sheet form, and is most commonly supplied in temper H22. Previously known as NS4, grade 5251 has many similar attributes to grade 1050 aluminium sheet .

Corrosion resistance

Grade 5251 aluminium has excellent resistance to both chemical and atmospheric attack. Grade 5251 aluminium also performs particularly well in sea water / salt water and for this reason is often referred to as a marine grade of aluminium. This makes aluminium sheeting supplied in grade 5251, the perfect grade for cladding & panels boats.

Welding

Grade 5251/ NS4 aluminium plate is suitable for gas, arc and resistance welding.

Machining

Grade 5251 aluminium has less than average machinability, however it is suitable for laser cutting and is supplied with a protective PVC coating on one face.

Cold working / forming

Grade 5251 / NS4 aluminium sheet is suitable for cold working. It is a fully bendable grade of aluminium, though due to its higher strength it is more difficult to bend than grade 1050. Grade 5251 aluminium sheet also rapidly work hardens. 5251 is the only grade of aluminium that age softens.

Anodising / Polishing / Powder Coating

Grade 5251 aluminium is excellent for all types of anodising, powder coating & it can also be polished.

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