BearMet260

Copper Nickel Tin

Characteristics：

This alloy is a spinodal decomposition-strengthened copper material. Through cold working and aging treatments, it demonstrates excellent overall performance with high strength. Free of elements such as beryllium and lead, it serves as an effective alternative to beryllium copper. In addition, it offers non-magnetic properties as well as outstanding resistance to corrosion, wear, and heat.

Typical applications:

Suitable for wear-resistant and corrosion-resistant bushings.

Standardization and composition

Note①：Silver included

UNS	/
EN	/
JIS	/
GB	/
Cu①	Balance %
Sn	5.5-6.5 %
Ni	5.5-6.5 %
Pb	≤ 0.02 %
Others	≤ 1.0 %

Physical properties②

Note②：The testing temperature is 20℃. Note③：The testing temperature range is 20℃ to 300℃.

Density (g/cm³)	8.96
Metling point(℃)	1038
Electrical conductivity (%IACS)	14
Thermal conductivity (W / m x K)	50.5
Coefficient of thermal expansion ③(10-6/K)	18.6
Poisson's ratio	0.35
Modulus of elasticity (GPa)	120

Fabrication Properties

Note④：C36000 = 100%

Capacity for being cold worked	Good
Capacity for being hot formed	Good
Machinability rating④	40%

Mechanical Properties ⑤

Note⑤: bedra technical standards

Temper	Diameter (mm)	Tensile Strength (MPa min.)	Yield Strength (MPa min.)	Elongation (A% min.)	Hardness (HV min.)
TX00	40≤Φ≤70	720	600	8	220

Dimension Tolerance and Delivery Form

Note⑥：The tolerances listed in the table are specified as all plus or all minus. When tolerances are specified as plus and minus (±), half the values given.

			Straight tube
Outer Diameter OD(mm)	Wall thickness (mm)	OD tolerance⑥ (mm)	Wall thickness tolerance⑥ (%)	Length (mm max.)	Straightness(mm/m max)
40≤Φ≤70	3.0≤δ≤5.0	0.4	20	2500	2.0