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Materials

AB2 Nickel Aluminium Bronze

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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.

Common Applications

Bushings
Gears
Marine Hardware
Propeller Blades
Propeller Hubs
Sea Water Valves
Shafts
Valve Bodies
Worm Wheels & Worms

Key Features

Suitable for marine applications
Superior corrosion resistance
Superior wear resistance

Material Profile

Profile
Size Range
Metric Size Range (mm)
Imperial Size Range (in)
NZ (Availability)
AUS (Availability)
Manufacturing Method
Solid Round Bar
See Size Range
22.23 to 250.00 (OD)
7⁄8 to 8 (OD)
Stocked
Indent
Continuous Cast
Hollow Round Bar
See Size Range
50.80 to 342.90 (OD)
2 to 13 1⁄2 (OD)
Stocked
Indent
Continuous Cast & Centrifugal
Diameter (mm)
Diameter (inch)
Weight (Kg/MTR)
22.23
7⁄8
3.70
25.40
1
4.99
38.10
1-1⁄2
10.19
44.45
1-¾
13.35
50.80
2
17.53
57.15
2-¼
21.68
63.50
2-1⁄2
27.02
69.85
2-¾
32.06
76.20
3
38.94
88.90
3-1⁄2
52.47
101.60
4
67.36
114.30
4-1⁄2
86.22
127.00
5
104.73
139.70
5-1⁄2
126.05
152.40
6
149.35
203.20
8
264.87
250.00
-
393.00
OD x ID (mm)
OD x ID (inch)
Kg/MTR
50.8 X 25.4
2 X 1
14.74
63.5 X 25.4
2-1⁄2 X 1
24.22
63.5 X 38.1
2-1⁄2 X 1-1⁄2
19.80
69.85 X 44.45
2-¾ X 1-¾
22.32
76.2 X 38.1
3 X 1-1⁄2
31.83
76.2 X 50.8
3 X 2
25.45
88.9 X 25.4
3-1⁄2 X 1
47.10
88.9 X 38.1
3-1⁄2 X 1-1⁄2
45.36
88.9 X 50.8
3-1⁄2 X 2
38.98
88.9 X 63.5
3-1⁄2 X 2-1⁄2
30.59
101.6 X 50.8
4 X 2
54.52
101.6 X 76.2
4 X 3
35.73
114.3 X 50.8
4-1⁄2 X 2
72.87
114.3 X 63.5
4-1⁄2 X 2-1⁄2
64.56
114.3 X 76.2
4-1⁄2 X 3
54.26
127 X 50.8
5 X 2
92.40
127 X 76.2
5 X 3
73.80
127 X 101.6
5 X 4
47.66
139.7 X 76.2
5-1⁄2 X 3
94.41
139.7 X 101.6
5-1⁄2 X 4
68.09
152.4 X 76.2
6 X 3
117.71
152.4 X 101.6
6 X 4
92.27
177.8 X 101.6
7 X 4
146.17
203.2 X 127
8 X 5
173.45
342.9 X 279.4
13-1⁄2 X 11
269.71

AB2 Nickel Aluminium Bronze

AB2 Nickel Aluminium Bronze

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AB2 Nickel Aluminium Bronze

AB2 Nickel Aluminium Bronze

Request a Quote

AB2 Nickel Aluminium Bronze

AB2 Nickel Aluminium Bronze

Request a Quote

AB2 Nickel Aluminium Bronze

AB2 Nickel Aluminium Bronze

Request a Quote

AB2 Nickel Aluminium Bronze

AB2 Nickel Aluminium Bronze

Request a Quote

AB2 Nickel Aluminium Bronze

AB2 Nickel Aluminium Bronze

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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 Pb 0.03 maximum
Zinc Zn 0.5 maximum
Copper Cu Balance

Mechanical Properties

Metric Imperial
Tensile Strength Min 586 N/mm² 85000 psi
Yield Strength Min 241 N/mm² 35000 psi
Elongation Min 18% 18%
Hardness Min 159 BHN 159 BHN

Machining Allowances

All Kormax AB2 Nickel 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 4.620″ to 4.660″ OD x 2.346″ to 2.392″ 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.

Size Range OD Allowance ID Allowance
up to 3″ +0.053″ to +0.073″ -0.108″ to -0.154″
3-1/4″ to 4″ +0.079″ to +0.109″ -0.108″ to -0.174″
4-1/4″ to 5-1/2″ +0.120″ to +0.160″ -0.125″ to -0.221″
5-3/4″ to 6-1/4″ +0.163″ to +0.214″ -0.135″ to -0.231″
6-1/2″ to 10″ +0.180″ to +0.230″ -0.190″ to -0.286″
Above 10″ +0.125″ -0.125″

Comparative Specifications

BS1400 – AB2

AS1565 C95810

JIS H5121 – CAC703C (A1BC3)

DIN 1714 – G-CuAl10Ni

ISO 1338 – CuAl10Fe5Ni5

BS EN 1982 CuAl10Fe5Ni5

Resources

Data Sheet

Alloy AB2 (Nickel Aluminium Bronze) Data Sheet

PDF (93 KB)

https://www.kormax.com/wp-content/uploads/2022/11/Alloy-AB2-Nickel-Aluminium-Bronze-Material-Data-Sheet-Updated-1.pdf

Blog

What is Bronze and Bronze Alloy-Naming Systems and Standards?

Resource

Bronze Manufacturing Processes

PDF (702 KB)

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Kormax operates in various sectors across the world, utilising our leading engineering, manufacturing, and global distribution capabilities to offer world-class solutions for engineers.

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Related Products

954 Aluminium Bronze

Alloy 954 is a high strength aluminium bronze that is widely used in heavy duty applications such as forestry, mining, construction & marine. It is a very hard material which has excellent strength and wear resistance, yet still retains good machining properties. Alloy 954 also has good resistance to impact loading, but it should be noted that proper lubrication is necessary to prevent metal to metal contact. Inadequate lubrication is likely to cause scoring or ‘galling’, and consequent damage to the bronze component and/or other moving parts. General corrosion resistance is good but de-luminification may occur under some circumstances. All Kormax 954 Aluminium Bronze is manufactured using finely controlled continuous or centrifugal casting techniques to ensure that hardness and strength is superior to sand-casting methods. This also means that the material has a fine grain structure and is free from porosity.

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Alloy C63000 is a high-quality extruded material widely used in tough, demanding and corrosive environments. Its exceptional toughness means it is used in applications such as bushings for aircraft landing gear and hydraulic bushings for earth moving equipment. The nickel content in this material means that it has superior corrosion resistance to marine conditions. Nickel aluminium 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 essential in bushing applications to ensure optimum performance. The chemical composition of C63000 is very similar to AB2 Bronze. However, being extruded means it has superior tensile strength, hardness and ductility. A further advantage with this material being extruded is that the diameter quoted is “on size” and has a clean surface finish making it an ideal solution for marine fasteners and fittings such as keel bolts, studs and other parts.