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Weartech International WT-20 Cobalt Hardfacing & Wear Resistant Alloy
| Category | Metal , Nonferrous Metal , Cobalt Alloy |
| Manufacturer | Weartech |
| Trade Name | |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Weartech International WT-20 Cobalt Hardfacing & Wear Resistant Alloy.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Applications: marine engine valves, control valves for petrochemicals, steel mill rolls, homogenizer valve componentsInformation provided by Weartech International
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 8.73 g/cc | 0.315 lb/in³ |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Rockwell C | 50 - 60 | 50 - 60 | |
| Hardness, Vickers | 250 @Treatment Temp. 760 °C |
250 @Treatment Temp. 1400 °F |
|
| 360 @Treatment Temp. 649 °C |
360 @Treatment Temp. 1200 °F |
||
| 430 @Treatment Temp. 538 °C |
430 @Treatment Temp. 1000 °F |
||
| 520 @Treatment Temp. 427 °C |
520 @Treatment Temp. 800 °F |
||
| 780 @Treatment Temp. 25.0 °C |
780 @Treatment Temp. 77.0 °F |
||
| Tensile Strength | 414 MPa | 60000 psi | As Cast |
| Elongation at Yield | 0.00 - 0.50 % | 0.00 - 0.50 % | |
| Charpy Impact | 4.07 J | 3.00 ft-lb | As Cast |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 13.7 µm/m-°C | 7.60 µin/in-°F | |
| Specific Heat Capacity | 0.389 J/g-°C | 0.0930 BTU/lb-°F | |
| Melting Point | <= 1260 °C | <= 2300 °F | |
| Liquidus | 1260 °C | 2300 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Carbon, C | 2.5 % | 2.5 % | |
| Chromium, Cr | 32 % | 32 % | |
| Cobalt, Co | 41.5 - 47.5 % | 41.5 - 47.5 % | |
| Iron, Fe | <= 3.0 % | <= 3.0 % | |
| Nickel, Ni | <= 3.0 % | <= 3.0 % | |
| Silicon, Si | <= 1.0 % | <= 1.0 % | |
| Tungsten, W | 17 % | 17 % |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Corrosion Resistance, Hydrochloric Acid Conc. 5.65% | >20 mils/year | RT |
| >400 mils/year | Boiling | |
| Corrosion Resistance, Nitric Acid Conc. 25-65% | >20 mils/year | RT |
| >400 mils/year | Boiling | |
| Corrosion Resistance, Sulfuric Acid Conc. 5-10% | >400 mils/year | 150 °F |
| >50 mils/year | RT | |
| Relative Wear Performance | Cold Abrasion | Excellent |
| Corrosion | Excellent | |
| Erosion | Excellent | |
| Hot Abrasion | Excellent | |
| Impact | Not Recommended | |
| Metal to Metal | Excellent |
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