Introduction
CoCrWalloy is a range of cobaltchromium alloys designed for wear resistance.
It is a completely nonmagnetic 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
Features:
1. Heat Resistance, wear resistance, corrosion resistance
2. Made as required dimensions and materials
3. Main products: valve seat, pump parts, pistons, bushings, nozzles etc
Compositions:
| Brand and No | Carbon(Min-Max) | Manganese(Min-Max) | Sillicon(Min-Max) | Chrom(Min-Max) | Nickel | Moly | Tung | Cobalt(Min-Max) | Iron | Other |
| (Min-Max) | (Min-Max) | (Min-Max) | ||||||||
| CoCrW3 | 2.00-2.70 | 1 | 1 | 29.0-33.0 | 3 | 11.0-14.0 | Bal. | 3 | P.03MAX | |
| S.03MAX | ||||||||||
| CoCrW4 | 1 | 1 | 1.5 | 28.0-32.0 | 3 | 1.5 | 12.5-15.5 | Bal. | 3 | |
| CoCrW6 | .90-1.4 | 1 | 1.5 | 27.0-31.0 | 3 | 1.5 | 3.50-5.50 | Bal. | 3 | P.04MAX |
| S.04MAX |
Physical Properties：
| Item. | CoCrw3 | CoCrW6 | CoCrW12 | CoCrW394 | TTG25 | TTG25 | Blade |
| (CFB) | |||||||
| Hardness | 51-55 | 38-44 | 44-49 | 47-51 | 57-60 | 60-63 | 46.5-50 |
Stellit 6 Physical property (Room Temp.)
| Density | Specific | Solidus | Liquidus | Specific heat | Magnetic | Electrode | Electrical | Electrical |
| (lb/in³) | Gravity | (J/kg·K) | Permeability | Potential | Conductivity | Resistivity | ||
| 0.305 | 8.46 | 2340°F | 2540°F | 0.101°F | <1.2@200 | -0.25 | 1.9%IACS | 41.73 |
| Btu/lb- | Oersteds | Volts | (Int. Annealed Copper Std.) | microhms-inch |
Stellite 6 Thermal Properties-Conductivity & Expansion
| Thermal Expansion Coefficient | Thermal Conductivity by Temperature | ||||||
| °F | Microinch/ | °C | Microns/ | °F | Btu/ft2/in/ | °C | W/mk |
| inch-°F | m-°C | hr/°F | |||||
| 212 | 6.3 | 100 | 11.34 | 70 | 102.7 | 21.11 | 14.82 |
