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ISO NiCr15Fe7TiAl Details
Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines
ISO NiCr15Fe7TiAl Standard Download
| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Stainless Steels | NiCr15Fe7TiAl | International - ISO , ISO 683-15 (1992) | |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.03 | 0.10 | ||
| Si | - | 0.50 | ||
| Mn | - | 0.50 | ||
| P | - | 0.015 | ||
| S | - | 0.015 | ||
| Cr | 14.00 | 17.00 | ||
| Mo | - | 0.15 | ||
| Ni | remaining | - | ||
| Al | 1.10 | 1.35 | ||
| Fe | 5.00 | 9.00 | ||
| Nb+Ta | 0.70 | 1.20 | ||
| Ti | 2.00 | 2.60 |
| 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) |
|---|---|---|---|---|---|---|
| 696 (≥) | 718 (≥) | 21 | 24 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 121 |
| 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 |
|---|---|---|---|---|---|---|---|
| 394 (≥) | 283 (≥) | 42 | 23 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 323 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 735 | 727 | 181 |
| 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 |
|---|---|---|---|
| NiCr15Fe7TiAl | ISO | International | Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines |
| 2.4669 | DIN | Germany | NiCrFeTi alloy; High-temperature resisting material |
| NiCr15Fe7TiAl | DIN | Germany | NiCrFeTi alloy; High-temperature resisting material |
| N07750 | UNS | USA | Ni-Cr Alloy Precipitation Hardenable |
| B 637 N07750 Type 1 | ASTM | USA | Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service |
| B 637 N07750 Type 2 | ASTM | USA | Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service |
| SB-637 N07750 Type 1 | ASME | USA | Precipitation-Hardening Nickel Alloy Bars, Forgings, and Forging Stock for High-Temperature Service |
| Inconel X750 | SAE | USA | Nickel Alloy, Corrosion and Heat-Resistant, Sheet, Strip, and Plate 72Ni - 15.5Cr - 0.95Cb(Nb) - 2.5Ti - 0.70Al - 7.0Fe Annealed |