C93200 - Copper Alloys

An American continuous cast high leaded gun metal.CuSn7Pb7Zn3.This is one of the most popular general bearing alloy used for strength, hardness and shock resistance, suitable for heavily loaded, lubricated, true running bearings. The alloy is available in a number of world specifications QQ-C-390B E7, SAE 660, SAE J461/ J462, QQ-B-1005 Comp12, Mil-B-1153 Comp12, DIN 1705 W Nr 2.1090.04 CuSn7ZnPb, NF A53-707 CuSn7Pb6Zn4 Y70, AS 1565 C93200, SFS 2207 CuSn7Pb6Zn4, NS 16525 CuSn7Pb6Zn3, EN 1982-2008 CC493K and DS 3001 5426.

Equivalent Specifications

S EN 1982-2008 GC 493K
CuSn7Zn4Pb7-C
ASTM B505 C93200
SAE J461
SAE J462
SAE 660
AS1565 C93200

Key Features

Excellent antifriction and machining properties. Resistant to wear and corrosion. Has excellent antifrictional properties, machines and casts easily, and is hard, strong, and wear resistant.

Typical Uses

General: bearing and bushing applications.

Automotive: Fittings

Fasteners: Washers

Industrial: Thrust Washers, Pumps, Bushings, Machine Parts, Main Spindle Bearings, Machine Tool Bearings, Bearings for Cranes, Trunnion Bearings, Roll Neck Bearings, Rolling Mill Bearings, Linkage Bushings for Presses, Fuel Pump Bushings, Water Pump Bushings, Diesel Engine Wrist Pin Bushings, Forging Press Toggle Lever Bearings, Hydraulic Press Stuffing Box, Hydraulic Press Main Lining, Pump Impellers, General Purpose Bushings, Fittings, Pump Fixtures, Insert Bearings, Bearings.

Suits such applications as farm-equipment mechanical linkages and camshaft bushings; guide bushings for valves, rams, and piston rods; motorcycle-engine bearings; and conveyor roller bushings.

Description	High Lead Tin Bronze
Nominal Composition	CuSn7Pb7Zn3
Alloy Type	cast

Typical Mechanical Properties

Tensile Strength (N/mm²)	300
Proof/Yield Strength (N/mm²)	150
Elongation (%)	20
Hardness Brinell	75
Impact Izod J20°C	8

Typical Physical Properties

Density g/cm³	8.93
Melting Temperature Range °C	854 - 977
Thermal Conductivity W/mK	58.2
Electrical Resistivity μΩ.m15°C	14
Coefficient of Thermal Expansion 0-250°C	18
Relative Magnetic Permeability
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].

This Data is indicative only and must not be seen as a substitute for the full specification from which it is drawn. In particular, the mechanical property requirements vary widely with tempeter, product and product dimensions. The information is based on our present knowledge and is given in good faith. However, no liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon.

As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose.

Any advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. Any contract between the Company and a customer will be subject to the Company’s Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions, a copy of which is available on request.