Copper and Copper Alloys Def-Stan 02-833 ~ NES833 ~ CW307G

2024-09-23

●SPECIFICATIONS

■Commercial: Def-Stan 833

●Bronzes are Copper-based alloys with the major alloying element being Tin. They offer a combination of properties such as high strength, hardness, corrosion resistance and wear resistance.

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

■Single phase alloys containing less than 8% of Aluminium.

■Two-phase (duplex) alloys containing 8 to 11% Aluminium. These alloys also frequently have additions of Iron and Nickel to increase strength. This group’s contains casting alloys AB1 and AB2, the wrought alloys CA105, CA104 and Defence Standard alloys (formerly Naval Engineering Standard, NES - 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 Defence Standard (NES) 833 is an Aluminium Bronze with good ductility and impact strength. It also has superior corrosion resistance.

AMA

CopperCopper AlloysCopper-based alloysCopper-Aluminium alloys

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Marine Valves ]Pumps ]Weapons handling systems ]Couplings ]Fasteners ]Gears ]Marine propeller shafts ]

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13 November 2018

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