Descriptions:
Co190, 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.
Applications
Metal working tools where a combination of metal-onmetal wear, thermal fatigue and hot corrosion resistanceare required, such as piercing points, forming tools, and extrusion dies. Also used for furnace hardware.
Product Details
Chemical composition:
| Grade |
Chemical composition(%) |
| Co |
Cr |
C |
Fe |
Others |
| Co 190 |
Bal |
27 |
3.3 |
£¼3 |
Ni,Si,Mn,Mo |
Physical Properties
| Grade |
Density |
Melting Point |
| Co 190 |
8.66g/cm3 |
1200~1335¡ãC |
Typical Characteristics:
|
Hardness |
Abrasion Resistance |
Deposit Layers |
Corrosion Resistance |
Machilityineab |
| HRC 52~60 |
Good |
Multiple |
Good |
Carbide Tools |
Standard Sizes:
| Diameter |
Diameter |
Diameter |
| 1/8¡± (3.2mm) |
5/32¡± (4.0mm) |
3/16¡± (4.8mm) |
Note that special sizes, or packing requirements are available on all requests. |
