Copper Alloy PB2 (PHOSPHOR BRONZE)
This alloy conforms to BS 1400 PB2
|Tensile Strength (N/mm2)||220-310|
|Modulus of Elasticity (lbf/m2 x 106)||12|
Strength at elevated temperatures
Service at elevated temperatures is limited by resistance to gradual deformation over prolonged periods of time and to oxidation. It is not suitable for sustaining loads at temperatures exceeding 300°C. The mechanical properties shown above cannot be used as an indication of performance at elevated temperatures.
|Coefficient of Thermal Expansion (per °C @ 0-250°C)||0.000018.3|
|Thermal conductivity (W/M°C)||45|
|Electrical conductivity (% copper standard @ 20°C)||9|
|Freezing range (°C) approx.||1000-831|
Machinability is good, being a medium hardness alloy. This material gives short turnings.
This alloy finds wide application where good corrosion resistance is required.
Application and General notes
General uses include unlined bearings for heavy compressive loads and shock, piston rings, axle boxes, gear wheels, centrifugal castings, and castings which require good wear resistance.
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New at MRT
Visit us at stand C195 at the Farnborough Internaltional Exhibition & Conference Centre on 5th, 6th & 7th February 2019.Read More
31st May 2018
Around 6 months ago, we took a hard look at how we use the data we have available to us at MRT Castings. We looked at everything from data being used by machines, data being created by machines all the way through to where data is being left on the cutting room floor and where data can potentially be corrupted or lost through human error.Read More
2nd Jan 2018
MRT Castings is excited to announce that we will be supporting the 2018 Year of Engineering initiative. The Year of Engineering is a year-long government campaign to support the engineering profession in recruiting the next generation of engineers.Read More