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About Stellite 190 Product

Stellite 190 is a highly wear-resistant alloy primarily used for hardfacing bearing journals on tri-cone rotary drill bits used in the oil and gas industry. Tricone drill bits operate in hot and extremely abrasive downhole conditions. Due to the high proportion of carbides that provide wear resistance, care must be taken to minimize the cooling stresses generated during the cladding process and to avoid service conditions involving severe mechanical or thermal shock.

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Stellite 190 Alloy

Nominal Composition (Mass %) and Physical Properties

Co	Cr	W	C	Fe	Others	Hardness	Density	Melting Range
Base	27	14	3.3	<3	Ni, Si, Mo, Mn	52-60 HRC570-760 HV	8.66 g/cm30.313 lb/in3	1200-1335ºC2192-2435ºF

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turbine wheel
turbine blade
nozzle ring
compressor blade
guide vanes
diffuser
Segment
Turbine Rotor
Turbine Stator
Stellite sheet
Stellite pipe
Stellite rod
Stellite bolt and nut
Stellite Fasteners
Stellite wire
spring

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Stellite alloys are a group of cobalt-chromium alloys known for their exceptional wear resistance, high temperature performance and corrosion resistance. Here's an overview of Stellite:

Composition:

Stellite alloys are primarily composed of cobalt (about 50-65%) and chromium (about 25-30%), with varying proportions of tungsten, carbon and other elements depending on the grade. These alloying elements give Stellite alloys a unique combination of properties.

Wear Resistance:

Stellite alloys are known for their excellent wear resistance, making them suitable for applications where components are subject to abrasive wear, erosion and sliding contact. They are typically used in high-wear environments such as cutting tools, saw teeth, valve seats, and pump components.

High Temperature Performance:

Stellite retains its mechanical properties at high temperatures, allowing it to withstand high temperatures without significant loss of strength or hardness. This makes Stellite alloys suitable for high-temperature applications such as gas turbine components, furnace components and exhaust valves.

Corrosion Resistance:

Stellite alloys exhibit good corrosion resistance in a variety of environments, including acidic and alkaline solutions, as well as high-temperature gases and molten salts. This corrosion resistance makes Stellite alloys suitable for use in chemical processing, marine engineering, and oil and gas production.

Versatility:

Stellite alloys are available in a variety of grades and forms, including powders for thermal spray coatings, castings and forgings such as rods and plates. This versatility allows the selection of the most appropriate grade and form of Stellite alloy for a specific application.

Applications:

Stellite alloys are widely used in aerospace, automotive, oil and gas, power generation and manufacturing industries. They are widely used in components requiring wear resistance, high temperature performance and corrosion resistance.