Cuptin CuSn Tin Bronze

Tin bronzes are usually more rare used then aluminium bronzes because of their higher density and as a consequence thereof their higher costs.

For example our aluminium bronze cupral4m has higher mechanical properties and is 15% lighter than tin bronzes.

Area of Application

For bushings operating at low and high speed.

Worm screw and gear manufacturing.

Slipper and press bushing and slide bearings.

It is used as gearbox replenisment pin in heavy vehicles that working with high stroke.

CUPTIN-1A: Used for bushings of low loaded, high speed working hardened shafts under 300 HB. It is a medium hard material used in casting of corrosion resistance valve etc. applications due to sea water.

CUPTIN-1B: Used for bushings of low and medium loaded, very high speed working hardened shafts under 300HB, sledges and slide bushings. Lubrication feature is at the top level.

CUPTIN-2: Used for bushings of medium loaded, medium speed working shafts in 300HB hardness and gears. Have high corrosion resistance and toughness.

CUPTIN-2(ZN): Used for bushings of medium loaded, medium speed working shafts in 300HB and below hardness. Corrosion resistance against sea water is very high.

CUPTIN-3: Used for bushings of medium and heavy loaded, medium speed working shafts and gears between 300 – 400HB hardness. It has high strength and corrosion resistance.

CUPTIN-3(Ni): Used for bushings of medium and heavy loaded, medium speed shafts between 300 – 400HB hardness. Due to addition of Nickle, its toughness, yield, tensile strenght and hardness features are higher than CuSn12.

CUPTIN-3(Pb): Used for bushings of medium loaded, medium speed shafts between 300 – 400HB hardness. Due to addition of “Lead” tooling ability is easier than CuSn12. (ability kelimesine gerek var mı?)

CUPTIN-4: Used for bushings of medium and heavy loaded, medium speed shafts between 300 – 400HB hardness. Its hardness, yield and tensile strenght are higher, toughness is lower than CuSn12 and CuSn12Ni.

CUPTIN-5, CUPTIN-6, CUPTIN-7, CUPTIN-8: Since it has low hardness and strength, it is used in the bushing of un-hardened shafts working at low load and very high speed. These alloys are with excellent lubrication and bushing properties that increase depending on the lead ratio in the structure. It is especially suitable for use in bushing where lubrication is difficult and inadequate.