Bronze Alloys - Bronze NES833 Properties, Fabrication and Applications, Supplier Data by Aalco

Topics Covered

Background

Aluminium Bronzes

Alloy NES833

Chemical Composition of Bronze Alloy NES833

Properties of Bronze Alloy NES833

Mechanical Properties of Bronze Alloy NES833

Physical Properties of Bronze Alloy NES833

Alloy Designations

Corrosion Resistance of Bronze Alloy NES833

Temperature Resistance of Bronze Alloy NES833

Fabrication of Bronze Alloy NES833

Welding and Joining of Bronze Alloy NES833

Machinability

Applications of Bronze Alloy NES833

Supplied Form

Background

Bronzes are copper-based alloys. Major alloying elements are often, but not always, zinc and tin. They offer a combination of properties such as high strength, hardness, corrosion resistance and wear resistance.

Aluminium Bronzes

Copper- aluminium alloy are commonly known as Aluminium Bronzes. These alloys cover a range of copper-based alloys in which the primary alloying element is up to 14% aluminium. The four major groups of Aluminium Bronzes are:

·         Single phase alloys containing less than 8% Aluminium.

·         Two-phase or duplex alloys containing 8 to 11% Aluminium. These alloys also frequently have additions of Iron and Nickel to increase strength. This group contains casting alloys AB1 and AB2, the wrought alloys CA105, CA104 and Naval Engineering Standard (NES) alloys (NES 747 when cast and the wrought form NES 833).

·         The low magnetic permeability Aluminium Silicon alloys.

·         The Copper Manganese Aluminium alloys with good castability.

Alloy NES833

Bronze Alloy NES833 is an Aluminium Bronzes with good ductility and impact strength. It also has superior corrosion resistance.

Chemical Composition of Bronze Alloy NES833

Table 1. Typical chemical composition for bronze alloy NES833

Properties of Bronze Alloy NES833

Mechanical Properties of Bronze Alloy NES833

Table 2. Typical mechanical properties for bronze alloy NES833

Physical Properties of Bronze Alloy NES833

Table 3. Typical physical properties for bronze alloy NES833

Alloy Designations

Bronze Alloy NES833 corresponds to the following designations:

Corrosion Resistance of Bronze Alloy NES833

Bronze Alloy NES833 has high corrosion resistance, particularly in marine environments. Bronze Alloy NES833 is immune to chloride stress corrosion cracking.

This alloy also has excellent resistance to cavitation erosion.

Temperature Resistance of Bronze Alloy NES833

Bronze Alloy NES833 largely retains its strength and hardness up to 400°C.

It is also resistant to high temperature scaling at up to 1000°C.

Fabrication of Bronze Alloy NES833

Welding and Joining of Bronze Alloy NES833

Bronze Alloy NES833 is fully weldable by common welding methods.

Machinability

Bronze Alloy NES833 has good machinability.

Applications of Bronze Alloy NES833

Bronze Alloy NES833 is typically used in:

·         Marine Valves

·         Pumps

·         Weapons handling systems

·         Couplings

·         Fasteners

·         Gears

·         Marine propeller shafts

Supplied Form

Bronze Alloy NES833 is typically supplied by Aalco in the following form:

·         Hexagon Bar

·         Round Rod

Source: Aalco

For more information on this source please visit Aalco