What is pb1?

PB1 is a widely used continuously cast Phosphor Bronze containing 10.2-11.5% Tin. It conforms to BS1400 PB1 CuSn10P and BS EN 1982-2008 GC CC481K CuSn11P-C. This alloy combines high mechanical strength with good ductility, corrosion resistance and wear resistance. It also offers a good resistance to shock loading but is out performed in this area by the wrought grades, but is a cost effective alternative. PB1 can be soldered and brazed and is traditionally used in heavy load applications. It can be run at high speed with adequate lubrication. PB1 is a good all-round high-impact bearing alloy.

Equivalent Specifications

BS 1400 PB1
BS EN 1982-2008 GC CC481K
Def Stan 02 838 Part 1
NES 838 Part 1
CuSn11P-C
ASTM B 505 C90700
SAE 65c
NES 838
AS 1565-1985 C90710
AS 1565-1974 904D

Key Features

Can tolerate high loads and high sliding velocity, impact loading or pounding. Good lubrication and alignment essential. Minimum shaft hardness 300HB.

Typical Uses

Critical bearings running with hard shafts. Good lubrication and alignment is essential.

Industrial Restaurant Equipment, Bearings for heavy loads and relatively low speeds, Bearings, Gear Boxes, Speed Reducers, Valve Bodies, Worm Gears.

Description Phosphor Bronze
Nominal Composition CuSn10P
Alloy Type cast

Typical Mechanical Properties

Tensile Strength (N/mm²) 420
Proof/Yield Strength (N/mm²) 190
Elongation (%) 20
Hardness Brinell 120
Impact Izod J20°C

Typical Physical Properties

Density g/cm³ 8.8
Melting Temperature Range °C 831 - 999
Thermal Conductivity W/mK 47
Electrical Resistivity μΩ.m15°C 0.17
Coefficient of Thermal Expansion 0-250°C 18
Relative Magnetic Permeability 1.001
Coefficient of Friction

Copper Alloys has the ability to modify existing alloys for improved performance. Many customers have benefited from this in the past.

To discuss your requirements, call a member of Copper Alloys’s technical team on +44 (0) 1782-816888, or email [email protected].

Contact

+44 (0) 1782 816888

[email protected]

Auckland Street, Stoke-on-Trent, ST6 2AZ, United Kingdom