Alternative Designations :AS 1050; BS 1050A (formerly S1B); DIN Al99.5; EN AW - 1050A; JIS A1050P; NF A 1050A (formerly NF A5)

Note: 1050A alloy is normally produced to BS 1470 specifications, but other National Standards may be met on request.

Chemical Composition:
Other elements
 
Si
Fe
Cu
Mn
Mg
Zn
V
Ti
Each
Al
(% max) 1050

0.25

0.4

0.05

0.05

0.05

0.05

0.05

0.03

0.03

99.50min

1050A

0.25

0.4

0.05

0.05

0.05

0.07

 

0.05

0.03

99.50min

Characteristics:

    Corrosion Resistance
:
: Excellent
Anodising
:
: Excellent
Formability
:
: Excellent
Machinability
:
: Poor
Weldability
:
: Excellent
Brazeability
:
: Excellent

Typical Uses General sheet metal work where moderate strength is adequate; lightly stressed panels; architectural flashings; name plates; lamp reflectors; brightly polished trim; cable sheathing; equipment and containers for food and chemical industries.

Note: Special grades are available for deep drawing, low earing, spinning and anodising; general purpose grades should not be used for these applications.

Availability:

Cut-To-Length Sheet
Temper

H12/F9

H14/F11

H16

H18/F13

H19/F15

O, H111, W7

H22/G9

H24/G11

H26

H28/G13

Thickness

0.5 - 3.0

0.5 - 2.4

0.5 - 3.2

0.5 - 2.8

0.5 - 1.6

1.2 - 3.2

0.5 - 2.2

0.5 - 3.2

0.5 - 3.0

0.5 - 2.0

Min. Width

750

750

750

750

750

900

750

750

750

750

Max. Width

1560

1560

1560

1560

1560

1560

1560

1560

1560

1560

Min. Length

800

800

800

800

800

1000

800

800

800

800

Max. Length

6100

6100

6100

6100

6100

6100

6100

6100

6100

6100


Coiled Sheet

Temper

H12/F9

H14/F11

H16

H18/F13

H19/F15

O, H111, W7

H22/G9

H24/G11

H26

H28/G13

Thickness

0.3 - 3.0

0.3 - 2.4

0.3 - 3.2

0.3 - 2.8

0.3 - 1.6

0.3 - 3.2

0.3 - 2.2

0.3 - 3.2

0.3 - 3.0

0.3 - 2.0

Min. Width

750

750

750

750

750

750

750

750

750

750

Max. Width

1560

1560

1560

1560

1560

1560

1560

1560

1560

1560


Slit Coils Minimum Widths, mm
Thickness (mm)
Temper

H2X

 

H3X

O

FX

W17

Over Up To

GX

H111

0.29

0.39

200

Not Avail.

0.39

0.46

200

450

0.46

0.50

200

300

0.50

0.60

90

200

0.60

0.70

90

150

0.70

0.80

90

100

0.80

1.25

60

100

1.25

1.80

100

100

1.80

2.50

150

130


Circles

Temper

H12/F9

H14/F11

H16

H18/F13

H19/F15

O, H111, W7

H22/G9

H24/G11

H26

H28/G13

Thickness

0.9 - 3.0

0.9 - 2.4

0.9 - 3.2

0.9 - 2.8

0.9 - 1.6

0.9 - 3.2

0.9 - 2.2

0.9 - 3.2

0.9 - 3.0

0.9 - 2.0

Min. Dia.(B)

500 (150)

500 (150)

500 (150)

500 (150)

500 (150)

500 (150)

500 (150)

500 (150)

500 (150)

500 (150)

Max. Dia.(B)

1550 (660)

1550 (660)

1550 (660)

1550 (660)

1550 (660)

1550 (660)

1550 (660)

1550 (660)

1550 (660)

1550 (660)

(B) : Blanked only. Sizes not inside bracket refer to sheared circle sizes available.

MECHANICAL PROPERTIES (TO BS 1470)

 

 

 

 

 

 

 

Gauge, mm

Tensile Str., N/mm²

Elongation

Temper

Min.

Less than

Min.

Max.

in 50 mm, %

O

0.50

0.80

55

95

22

 

0.80

1.30

 

 

25

 

1.30

2.60

 

 

30

 

2.60

3.00

 

 

32

 

3.00

3.20

 

 

32

H12

0.50

0.80

80

115

4

 

0.80

1.30

 

 

6

 

1.30

2.60

 

 

8

 

2.60

3.00

 

 

9

H14

0.50

0.80

100

135

4

 

0.80

1.30

 

 

5

 

1.30

2.40

 

 

6

H18

0.50

0.80

135

 

3

 

0.80

1.30

 

 

3

 

1.30

2.60

 

 

4

 

2.60

2.80

 

 

4


Modulus of Elasticity: 69,000 MPa

 Bend Radii: Minimum recommended radii for 90º cold bends

   Thickness

Temper

0.4mm

0.8mm

1.6mm

3.0mm

O

0t

0t

0t

0t

H12, H22

0t

0t

0t

0.5t

H14, H24

0t

0t

0t

1t

H16, H26

0t

0.5t

1t

1.5t

H18

1t

1t

1.5t

2.5t

t = Thickness

Welding: 1050 is readily welded by the TIG and MIG processes. Commonly used filler alloys are 4043 and 1050. 4043 gives a greater weld strength, but if the assembly is to be anodized, 1050 filler metal will give a closer color match.

1050 may also be gas welded or resistance welded, but the resulting joints are not as strong or as corrosion resistant as the inert gas welded joints. Moreover, gas welding could result in excessive heat distortion and, in thinner gauges, may burn through. It is essential that all traces of flux used in welding or brazing are removed by scrubbing with hot water upon completion.

Annealing: 350ºC ± 5ºC, until all parts have reached the annealing temperature.

Weight Calculation: Weight per square metre in kilogrammes: 2.71 x thickness in mm.