AB2 Aluminium Bronze

Overview

Alloy AB2 is a nickel aluminium bronze that is widely used in marine applications.

The nickel content in this material means that it has superior corrosion resistance to marine conditions. AB2 also has high strength and good wear resistance, making it suitable for bearings, gears and other components with heavy loads and slow speeds.

Good lubrication and alignment are required to ensure optimum performance.

Machining Allowances

All Kormax AB2 Aluminium Bronze bar has machining allowances added to the sizes quoted. To use 4-1/2” x 2-1/2” hollow bar as an example, this material would measure approximately 4.650” OD x 2.375” ID as supplied (see table below). Therefore this allows finished components measuring 4-1/2” OD x 2-1/2” ID to be easily manufactured from 4-1/2” x 2-1/2” hollow bar.

Machining allowances are as follows:

Outside Diameter Inside Diameter
Size Range Allowance Size Range Allowance
up to 2-3/4” +0.072” up to 2-3/4” -0.125”
3” to 4” +0.110” 3” to 4” -0.125”
4-1/4” to 6-1/2” +0.150” 4-1/4” to 6-1/2” -0.145”
7” to 8” +0.190” 7” to 8” -0.200”
8-1/2” to 20” +0.125” 8-1/2” to 18” -0.125”

Chemical Composition

Element Symbol Range (%) Nominal (%)
Aluminium Al 8.8-10.0 9.5
Iron Fe 4.0-5.5 4.8
Nickel Ni 4.0-5.5 5.0
Manganese Mn 3.0 maximum
Tin Sn 0.1 maximum
Lead b 0.03 maximum
Zinc Zn 0.5 maximum
Copper Cu Balance

Kormax Size Range

Kormax can also cut any size or shape to length at no extra cost

Solid Round
Solid Round (Diameter) KG/Mtr
5/8″ 2.30
1″ 4.99
1-1/2″ 10.19
2″ 17.53
2-1/2″ 27.02
2-3/4″ 32.06
3″ 38.94
3-1/2″ 52.47
4″ 67.36
4-1/2″ 86.22
5″ 104.73
6″ 149.35
8″ * 252.39
9″ * 315.96
10″ * 406.56
Hollow Round
Hollow Round (O.D. x I.D.) KG/Mtr
1-3/8″ x 3/4″ 7.27
1-3/4″ x 1″ 10.86
2-1/2″ x 1-1/2″ 19.80
3″ x 1″ 36.19
3″ x 2″ 25.45
3-1/2″ x 2″ 38.98
4″ x 2″ 54.52
4″ x 3″ 35.73
4-1/2″ x 1-1/4″ 81.59
4-1/2″ x 2-1/2″ 64.56
5″ x 2-1/2″ 84.10
5″ x 3″ 73.80
5″ x 3-1/2″ 62.09
5″ x 4″ 47.66
5-1/2″ x 2-1/2″ 104.61
6″ x 2″ 136.13
6″ x 3″ 117.71
6″ x 4″ 92.27
7″ x 3″ 172.49
7″ x 4″ 146.17
8″ x 5″ 173.45

Use the Product Finder for product recommendations, based on the dimension of your finished size.


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