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GB GH4118 Details
GB GH4118 Standard Download
| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Superalloys | GH4118 | China - GB , |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.20 | ||
| Cr | 14.0 | 16.0 | ||
| Mo | 3.0 | 5.0 | ||
| Ni | - | Remainder | ||
| Co | 13.5 | 15.5 | ||
| Al | 4.5 | 5.0 | ||
| Ti | 3.5 | 4.5 | ||
| B | 0.01 | 0.025 | ||
| Fe | - | 0.1 | ||
| Zr | - | 0.15 |
| 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) |
|---|---|---|---|---|---|---|
| 851 (≥) | 492 (≥) | 44 | 44 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 432 |
| 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 |
|---|---|---|---|---|---|---|---|
| 925 (≥) | 766 (≥) | 23 | 14 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 144 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 454 | 393 | 551 |
| 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 |
|---|---|---|---|
| GH4118 | GB | China | Iron-based superalloy |