Equivalent Specifications

ASTM B 138 C67500 Alloy A
SAE J461 CA675
SAE J463
ASTM B 283 C67500
ASTM B 124 C67500

Key Features

A copper zinc alloy known as manganese bronze, with additions of iron and tin which improves the strength and corrosion resistance.

Typical Uses

Automotive: Clutch discs, pump rods and shafting.

Marine: Valve stems and bodies, shafting, general hardwear.

General engineering: Fasteners, hydraulic parts.

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ASTM C67500

A manganese bronze CuZn40Fe2Sn1Mn. C67500 is a moderately high strength bronze processing good tensional properties and general corrosion resistance. It has excellent hot working characteristics for closed die forging applications. The alloy can be certified to ASTM B 96 C67500, ASTM B 98 C67500 and QQ-B-728 class A

Description	Manganese Bronze
Nominal Composition	CuZn39Fe2Sn
Alloy Type	Wrought

Typical Mechanical Properties

Tensile Strength (N/mm²)	468
Proof/Yield Strength (N/mm²)	310
Elongation (%)	16
Hardness Brinell
Impact Izod J20°C

Typical Physical Properties

Density g/cm³	8.36
Melting Temperature Range °C	865-890
Thermal Conductivity W/mK	106
Electrical Resistivity μΩ.m15°C	7.2
Coefficient of Thermal Expansion 0-250°C	21.2
Relative Magnetic Permeability
Coefficient of Friction

Copper Alloys Ltd 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 Ltd's technical team on +44 (0) 1782-816888, or email sales@copperalloys.net.

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 acepted 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.