AISI C-8 Enquiry | Print this page
- Category
- Type
- Steel grade
- Standard
- Country
- USE
Chemical composition % of the ladle analysis of grade C-8
| W(%) | Co(%) | Ti(%) | Ta(%) |
| 62.0-82.0 | 4.4-8.0 | 10.4-18.0 | 2.0-12.0 |
Density / (g/cm ^ 3) : 9.8 ~ 11.9
Hardness HRA: 92.0 ~ 93.0
Bending strength/MPa: 1035 ~ 1585
Use for example: used for steel precision bore
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 268 (≥) | 996 (≥) | 23 | 23 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 342 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 172 (≥) | 668 (≥) | 22 | 21 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 344 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 838 | 673 | 664 |
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
| Grade | Standard | Country | Application |
|---|---|---|---|
| HEV5 | Steel for exhaust valves |
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| N07080 | Steel for exhaust valves |