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Weartech International WT-21 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-21 Cobalt Hardfacing & Wear Resistant Alloy.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Applications: hot trimming & forging dies, high pressure high temperature valves, hot shears, valve seats, pump impellers, ringsInformation provided by Weartech International
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 8.31 g/cc | 0.300 lb/in³ |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Rockwell C | 27 | 27 | |
| Hardness, Vickers | 100 @Treatment Temp. 760 °C |
100 @Treatment Temp. 1400 °F |
|
| 150 @Treatment Temp. 649 °C |
150 @Treatment Temp. 1200 °F |
||
| 190 @Treatment Temp. 538 °C |
190 @Treatment Temp. 1000 °F |
||
| 205 @Treatment Temp. 427 °C |
205 @Treatment Temp. 800 °F |
||
| 300 @Treatment Temp. 25.0 °C |
300 @Treatment Temp. 77.0 °F |
||
| Tensile Strength | 696 MPa | 101000 psi | Heat Treated |
| Elongation at Yield | 1.0 - 3.5 % | 1.0 - 3.5 % | |
| Charpy Impact | >= 8.13 J | >= 6.00 ft-lb |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 13.7 µm/m-°C | 7.60 µin/in-°F | |
| Specific Heat Capacity | 0.423 J/g-°C | 0.101 BTU/lb-°F | |
| Melting Point | <= 1370 °C | <= 2490 °F | |
| Liquidus | 1370 °C | 2490 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Carbon, C | 0.25 % | 0.25 % | |
| Chromium, Cr | 27 % | 27 % | |
| Cobalt, Co | 61.25 - 64.25 % | 61.25 - 64.25 % | |
| Iron, Fe | <= 3.0 % | <= 3.0 % | |
| Molybdenum, Mo | 5.0 % | 5.0 % | |
| Nickel, Ni | 2.5 % | 2.5 % | |
| Silicon, Si | <= 1.0 % | <= 1.0 % |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Corrosion Resistance, Hydrochloric Acid Conc. 5.65% | <5 mils/year | RT |
| Corrosion Resistance, Nitric Acid Conc. 25-65% | <5 mils/year | RT |
| Corrosion Resistance, Sulfuric Acid Conc. 5-10% | <5 mils/year | RT |
| Relative Wear Performance | Cold Abrasion | Not Recommended |
| Corrosion | Excellent | |
| Erosion | Excellent | |
| Hot Abrasion | Not Recommended | |
| Impact | Excellent | |
| Metal to Metal | Excellent |
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