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GB GH4698 Details
GB GH4698 Standard Download
GH4698 Application:Nickel-base superalloy
| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Superalloys | GH4698 | China - GB , |
Chemical composition(wt.%) of GH4698 grade:
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.08 | ||
| Cr | 13.0 | 16.0 | ||
| Mo | 2.8 | 3.2 | ||
| Ni | - | Remainder | ||
| Al | 1.3 | 1.7 | ||
| Nb | 1.8 | 2.2 | ||
| Ti | 2.35 | 2.75 | ||
| B | - | 0.005 | ||
| Fe | - | 2.0 | ||
| Ce | - | 0.005 |
Mechanical properties of grade GH4698
| 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) |
|---|---|---|---|---|---|---|
| 378 (≥) | 534 (≥) | 13 | 22 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 124 |
Physical properties of grade GH4698
| 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 |
|---|---|---|---|---|---|---|---|
| 982 (≥) | 397 (≥) | 31 | 11 | 33 | 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 |
|||||
| 278 | 366 | 761 |
GH4698 - Form of Supply
| 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 |
Cross Reference Table(Equivalent Grade)
| Grade | Standard | Country | Application |
|---|---|---|---|
| GH4698 | GB | China | Nickel-base superalloy |
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