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 HRC
570-760 HV
8.66 g/cm3
0.313 lb/in3
1200-1335ºC
2192-2435ºF

Stellite 190

Stellite 190 is a highly abrasion-resistant alloy, primarily used for the hardfacing of bearing journals in tricone rotary rock bits used in the oil and gas industry. Tricone bits operate in hot and extremely abrasive downhole conditions. Due to the high proportion of carbides, which provide the abrasion resistance, care must be taken to minimize cooling stresses incurred during hardfacing and to avoid service conditions which involve severe mechanical or thermal shock.

Stellite 190 can only be finished by grinding. 

Scanning Electron Micrograph of a Stellite 190 Oxy-Acetylene Weld Deposit at 1000X Magnification
SPECIFICATION PRODUCT FORM
UNS R30014 Rod, Powder
AWS A5.21 / ASME BPVC IIC SFA 5.21 ERCoCr-G  Rod

 

Stellite 190 Alloy Data Sheet

Check out our Stellite 190 Alloy data sheet for additional information.

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