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GB K125L Details
GB K125L Standard Download
| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Superalloys | K125L | China - GB , |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.06 | 0.14 | ||
| Cr | 8.20 | 9.80 | ||
| Co | 9.20 | 10.80 | ||
| W | 6.20 | 10.80 | ||
| Ni | - | Bal | ||
| Mo | 1.50 | 2.50 | ||
| Al | 4.30 | 5.30 | ||
| Ti | 2.00 | 2.80 | ||
| Fe | - | 0.20 | ||
| Ta | 3.30 | 4.00 | ||
| B | 0.005 | 0.015 | ||
| Zr | - | 0.05 | ||
| Si | - | 0.15 | ||
| Mn | - | 0.15 | ||
| P | - | 0.001 | ||
| S | - | 0.010 | ||
| Pb | - | 0.0005 | ||
| Sb | - | 0.001 | ||
| Sn | - | 0.001 | ||
| Bi | - | 0.00005 | ||
| Ag | - | 0.0005 |
| 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) |
|---|---|---|---|---|---|---|
| 886 (≥) | 623 (≥) | 31 | 41 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 124 |
| 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 |
|---|---|---|---|---|---|---|---|
| 125 (≥) | 362 (≥) | 33 | 44 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 113 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 771 | 175 | 674 |
| 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 |
|---|---|---|---|
| K125L | GB | China | Directional Solidification Superalloy |
| DZ4125L | GB | China | Directional Solidification Superalloy |
| DZ125L | GB | China | Directional Solidification Superalloy |