24 July 2021 High Temperature Alloys
K417 High Temperature Alloy Steel bar
Chemical composition(mass fraction)(wt.%) of the K417
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Mo(％) | V(%) | Co(%) | B(%) | Al(%) | Ti(%) | Other(%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.13-0.22 | Max 0.5 | Max 0.5 | Max 0.015 | Max 0.01 | 8.50-9.50 | Balance | 2.50-3.50 | 0.60-0.90 | 14.0-16.0 | 0.012-0.022 | 4.80-5.70 | 4.50-5.00 | Zr :0.05-0.09 |
Mechanical properties of grade K417
| Yield Rp0.2(MPa) | Tensile Rm(MPa) | Impact KV (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | HBW |
|---|---|---|---|---|---|---|
| 279 (≥) | 847 (≥) | 12 | 13 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 332 |
Physical properties of grade K417
| Property | Density kg/dm3 | Temperature T °C/F | Specific heat J / kgK | Thermal conductivity W/mK | Electric resistance µΩ·cm |
|---|---|---|---|---|---|
| 123 (≥) | 821 (≥) | 43 | 34 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Temp. °C/°F | Creep strain limit (10000h) (Rp1,0) N/mm2 | Creep rupture strength (10000h) (Rp1,0) N/mm2 | - | - | - |
| 319 | 875 | 377 | - | - | - |
K417 Range of products
| 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 |