Cobalt base alloy is a completely non-magnetic and corrosion
resistant cobalt alloy. There are a number of cobalt base alloys,
with various compositions optimised for different uses. Some are
formulated to maximize combinations of wear resistance, corrosion
resistance, or ability to withstand extreme temperatures.
Stellite alloy is a range of cobaltchromium alloys designed for
wear resistance. It is a completely non magnetic and corrosionresistant cobalt
alloy. There are a number of Stellite alloys,
with various compositions optimised for different uses. Some are formulated to maximize
combinations of wear resistance, corrosion resistance, or ability
to withstand extreme temperatures
2.Nominal composition (mass%) and physical properties
♦ Castings of main alloys: cobalt-base alloy, nickel -base alloy,SS
and stellite alloy;
♦ Available forms: end product or blank;
♦ Properties: good resistance against corrosion and oxidation;
♦ Main application: extensively used in petrochemical industry,
marine exploration, heat exchanger and pump;
♦ Processing: investment casting, sand casting;
|Base||27-31||3.5-5.5||0.9-1.4||Ni, Fe, Si, Mn, Mo||38-44HRC||8.35g/cm³||1280-1410ºC|
Standard: API Spec 11AX
High Precission in Shape;
Strong corrosion resistance
Excellent mechanical property
Materials: Stainless Steel, Tungsten Carbide, Titanium Carbide,
Precision machined carbide balls and valve seats
1. High strength, high wear resistance, high precision, good
temperature resistance and good corrosion resistance.
2. Mainly used for the sealing of valves of oil pumps in petroleum
industry’s containing wells, viscous oil wells, sea oil wells and
high pressure sulfur resistant oil wells, etc.
3. Balls and seats are used with compatible cemented carbide valve
4. The finished surface, tolerance standard have reached the
standards of the machine industry: G5, G10, G16, G40 and G100 of
5. Precision machined cemented carbide balls of other grades and
specifications are also available based on customers` demands.
6. Compatible high precision valve seats can also be made.
|1||VII-106||20.14×11.68×12.7||22.81||ID(±1.27mm) OD(+0/-0.13mm) H(+0.51/-0.25mm)|