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UNS N07718 Details
Ni-Cr Alloy Precipitation Hardenable
UNS N07718 Standard Download
| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Superalloys | N07718 | USA - UNS , |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.03 | ||
| Cr | 17.0 | 21.0 | ||
| Mo | 2.80 | 3.30 | ||
| Ni | 50.0 | 55.0 | ||
| Al | 0.20 | 0.60 | ||
| Nb | 4.75 | 5.50 | ||
| Fe | - | Bal | ||
| Si | - | 0.35 | ||
| Mn | - | 0.35 | ||
| P | - | 0.015 | ||
| S | - | 0.015 | ||
| B | - | 0.006 |
| 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) |
|---|---|---|---|---|---|---|
| 977 (≥) | 734 (≥) | 43 | 22 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 222 |
| 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 |
|---|---|---|---|---|---|---|---|
| 351 (≥) | 482 (≥) | 32 | 21 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 233 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 237 | 688 | 845 |
| 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 |
|---|---|---|---|
| 2.4668 | DIN | Germany | Classification and designation for superalloys and high temperature intermetallic materials |
| NiCr19Fe19Nb5Mo3 | DIN | Germany | Classification and designation for superalloys and high temperature intermetallic materials |
| A 1014 N07718 | ASTM | USA | Standard Specification for Precipitation-Hardening Bolting (UNS N07718) for High Temperature Service |
| B 637 N07718 | ASTM | USA | Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service |
| B 670 N07718 | ASTM | USA | Precipitation-Hardening Nickel Alloy (UNS N07718) Plate, Sheet, and Strip for High-Temperature Service |
| B 983 N07718 | ASTM | USA | Precipitation Hardened or Cold Worked, Seamless Nickel Alloy Pipe and Tube |
| N07718 | UNS | USA | Ni-Cr Alloy Precipitation Hardenable |
| Inconel 718 | AMS | USA | Nickel Alloy, Corrosion and Heat-Resistant, Seamless Tubing 52.5Ni - 19Cr - 3.0Mo - 5.1Cb (Nb) - 0.90Ti - 0.50Al - 18Fe Consumable Electrode Remelted or Vacuum Induction Melted 1775°F (968°C) Solution Heat Treated |
| Inconel 718 | SAE | USA | Nickel Alloy, Corrosion and Heat-Resistant, Seamless Tubing 52.5Ni - 19Cr - 3.0Mo - 5.1Cb (Nb) - 0.90Ti - 0.50Al - 18Fe Consumable Electrode Remelted or Vacuum Induction Melted 1775°F (968°C) Solution Heat Treated |
