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Grade 5xxx Alloys

Composition

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The principle alloying element in Grade 5xxx is Magnesium, accounting for up to 6.0% by weight of these alloys. Further alloying elements include; ≤2.8 Zinc, ≤1.8 Tin, ≤1.4 Manganese, ≤1.4 Silicon, ≤0.8 Copper, ≤0.35 Chromium, ≤0.30 Zirconium, ≤0.2 Titanium, ≤0.1 Nickel, ≤0.1 Vanadium, ≤0.05 Gallium & ≤0.0009 Lithium

Common Forms

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5xxx Series Alloys are commonly available in

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• Sheets and Plates

• Drawn and extruded Tubes

• Extruded Wire, Rod and Bar and Profiles

• Rolled and cold finished Wires, Rods and Bars

• Rivets

• Forgings

• Foil

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(Not all alloys or tempers available in all shapes)

Characteristics

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• Easily anodised in 5005 alloy

• Strong yet easily formed

• Excellent welding capabilities

• Enhanced resistance to marine corrosion

• Once welded has excellent joint strength

• Can be used from cryogenic temperatures up to 205°C

• Precipitation hardened

Uses

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• Agricultural appliances

• Automotive parts

• Electrical applications

• Marine components

• TV towers

• Drilling rigs

• Pressure vessels

• Chemical storage vessels

• Tanking for transporting hot asphalt

• Cryogenic storage

• General metal work

Commonly Used Alloys (AA)

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5005(A) | 5205 | 5305 | 5505 | 5605 | 5006  5106 | 5010 | 5110(A) | 5210 | 5310 | 5016  5017 | 5018(A) | 5019(A) | 5119(A) | 5021  5022 | 5023 | 5024 | 5026 | 5027 | 5028 | 5040  5140 | 5041 | 5042 | 5043 | 5049 | 5149 | 5249  5349 | 5449(A) | 5050(A, B & C) | 5150

5051(A) | 5151| 5251(A) | 5351 | 5451 | 5052  5252 | 5352 | 5154 (A, B & C) | 5254 | 5354  5454 | 5554 | 5654(A) | 5754 | 5854 | 5954  5056 | 5356(A) | 5456(A & B) | 5556(A, B & C)  5237 | 5457 | 5557 | 5657 | 5058 | 5059 | 5070  5180(A) | 5052 | 5182 | 5083 | 5183(A)

5283(A & B) | 5383 | 5483 | 5086 | 5186 | 5087

5187 | 5088

Machinability

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Grade 5xxx Alloys are not generally suitable for machining, with few exceptions.

Weldability

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Grade 5xxx alloys are almost uniformly excellent for joining via arc welding. Gas welding may be used in the lower grades.

Commonly Used Alloys (UNS)

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A95005(A) | A95205 | A95305 | A95505

A95605 | A95006 | A95106 | A95010

A95110(A) | A95210 | A95310 | A95016  A95017 | A95018(A) | A95019(A) | A95119(A)

A95021  A95022 | A95023 | A95024 | A95026

A95027 | A95028 | A95040 | A95140

A95041 | A95042 | A95043 | A95049 | A95149

A95249 | A95349 | A95449(A) | A95050(A, B & C) | A95150 | A95051(A) | A95151

A95251(A) | A95351 | A95451 | A95052  A95252 | A95352 | A95154 (A, B & C) | A95254

A95354 | A95454 | A95554 | A95654(A)

A95754 | A95854 | A95954 | A95056

A95356(A) | A95456(A & B) | A95556(A, B & C)  A95237 | A95457 | A95557 | A95657 | A95058 A95059 | A95070 | A95180(A) | A95052

A95182 | A95083 | A95183(A)

A95283(A & B) | A95383 | A95483 | A95086

A95186 | A95087 | A95187 | A95088