1100 aluminium alloy

1100 aluminium alloy is an aluminium-based alloy in the “commercially pure” wrought family (1000 or 1xxx series). With a minimum of 99.0% aluminum, it is the most heavily alloyed of the 1000 series. It is also the mechanically strongest alloy in the series, and is the only 1000-series alloy commonly used in rivets. At the same time, it keeps the benefits of being relatively lightly alloyed (compared to other series), such as high electrical conductivity, thermal conductivity, corrosion resistance, and workability. It can be strengthened by cold working, but not by heat treatment.

Cold-working is the most common way to form aluminum 1100 alloy . A cold metalworking process is any metal shaping or forming process that takes place at or near room temperature. Aluminum 1100 can be shaped into many different products, including chemical equipment, railroad tank cars, fin stock, dials, name plates, cooking utensils, rivets, reflectors and sheet metal. The plumbing and lighting industries also use aluminum 1100, as do a wide variety of other industries.

Aluminum alloy 1100 is among the softest aluminum alloys and therefore is not used for high-strength or high-pressure applications. Though it is often cold-worked, pure aluminum can be hot-worked as well, but more frequently, aluminum is shaped by spinning, stamping and drawing processes, none of which require the use of high heat. These processes produce aluminum shapes in the form of foil,plates, round bars or rods, sheets, strips, and wire. Aluminum 1100 can also be welded; resistance welding is possible, but it can be difficult and usually requires the attention of skilled welders. Aluminum 1100 is just one of several common aluminum alloys and is soft, low strength and, at 99% min aluminum, is the commercially pure aluminum. Copper, iron, magnesium, manganese, silicon, titanium, vanadium and zinc comprise the remaining elements. It cannot be hardened by heat treatment and is very formable.

 

Elements

Si

Fe

Cu

Mn

Mg

Cr

Zn

Ti

Others

Al

Content

0.95

0.05-0.2

0.05

0.1

0.15

Remain

Alloy
Temper

Specified

Tensile
strength
Yield
strength

Elongation

Thickness(in.)

(ksi)

(ksi)

(%)

1100-O

(annealed)

0.006-0.019

11.0-15.5

Min3.5

Min15

0.020-0.031

Min20

0.032-0.050

Min25

0.051-0.249

Min30

0.250-3.000

Min28

1100-H12/

1100-H22

0.017-0.019

14.0-19.0

Min11.0

Min3

0.020-0.031

Min4

0.032-0.050

Min6

0.051-0.113

Min8

0.114-0.499

Min9

0.500-2.000

Min12

1100-H14/

1100-H24

0.009-0.012

16.0-21.0

Min14.0

Min1

0.013-0.019

Min2

0.020-0.031

Min3

0.032-0.050

Min4

0.051-0.113

Min5

0.114-0.499

Min6

0.500-1.000

Min10

1100-H16/

1100-H26

0.006-0.019

19.0-24.0

Min17.0

Min1

0.020-0.031

Min2

0.032-0.050

Min3

0.051-0.162

Min4

1100-H18/

1100-H28

0.006-0.019

Min22.0

Min1

0.020-0.031

Min2

0.032-0.050

Min3

0.051-0.128

Min4

1100-H112

0.025-0.499

Min13.0

Min7.0

Min9

0.500-2.000

Min12.0

Min5.0

Min14

2.001-3.000

Min11.5

Min4.0

Min20

 

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