BS1400 CT2 - Copper Alloys

A 12% tin bronze with the addition of 1.5-2.0 nickel which meets the requirements of BS 1400 CT2 CuSn12Ni and BS EN 1982-2008 GC CC484K CuSn12Ni2-C. The alloy has a higher strength and hardness than CT1 with the additional tin and nickel. The nickel also gives added abrasion and corrosion resistance. The alloy can be used for heavy loaded gears and cams, running at low speeds but needs adequate lubrication.

Equivalent Specifications

BS 1400 CT2
BS EN 1982-2008 GC CC484K
CuSn12Ni2-C
DIN 1705, GC CuSn12Ni, 2.1060.04
GC-SnBz12

Key Features

A bearing alloy with high strength, good wear resistance and corrosion resistant in sea water. The addition of nickel increases the strength and corrosion resistance.

Typical Uses

Can be used for annular and tubular structural components, nuts under load, high stressed fast running worm wheels rims and helical gear wheel rims.

Loading Characteristics for worm wheels depending on sliding speed.c=200-1250N/cm² or for short time loading 4000-4500N/cm².

Description	Copper Tin
Nominal Composition	CuSn12Ni2
Alloy Type	cast

Typical Mechanical Properties

Tensile Strength (N/mm²)	320
Proof/Yield Strength (N/mm²)	180
Elongation (%)	10
Hardness Brinell	100
Impact Izod J20°C

Typical Physical Properties

Density g/cm³	8.6
Melting Temperature Range °C	870 - 1010
Thermal Conductivity W/mK	45
Electrical Resistivity μΩ.m15°C	0.19
Coefficient of Thermal Expansion 0-250°C	19
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.