Cobalt Alloy Plates for Steam Turbine

Categories Cobalt Alloy, Cobalt based alloy

STP 6 casting strips of steam turbine blades can reduce the corrosion problem of steam turbine blades.

Cobalt alloy products have high-temperature resistance, wear resistance, and corrosion resistance.

Additional information

Size	Customized
Surface	machined surface, rough sandblasted surface
Material grades	STP 6, STP 6B

The edges of some steam turbine blades will be eroded by water droplets produced in the steam turbine, so in many power plants, the cobalt alloy plates(also called STP strips) are induction brazed to SUS410Cb steam turbine blades to improve the wear and erosion resistance of blades. Erosion strips are typically made from STP 6 and STP 6B or cast Cobalt alloys.
SYTOP can supply different specifications on cobalt alloy plates upon request.

STP 6 Chemical compositions(mass%).

C: 0.9-1.4

Mn: 1.0

Si: 1.5

Cr: 27.0-31.0

Ni: 3.0

Mo: 1.5

W: 3.5-5.5

Co: Bal.

Fe: 3.0

Density: 8.35g/cm3

Hardness: 38-44HRC