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AISI N07750 Details
AISI N07750 Standard Download
N07750 Application:Steel for exhaust valves
| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Stainless Steels | N07750 | USA - AISI , |
Chemical composition(wt.%) of N07750 grade:
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.08 | ||
| Si | - | 0.50 | ||
| Mn | - | 1.00 | ||
| P | - | - | ||
| S | - | 0.010 | ||
| Cr | 14.0 | 17.0 | ||
| Ni | 70.0 | - |
Mechanical properties of grade N07750
| 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) |
|---|---|---|---|---|---|---|
| 478 (≥) | 447 (≥) | 13 | 23 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 433 |
Physical properties of grade N07750
| 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 |
|---|---|---|---|---|---|---|---|
| 412 (≥) | 867 (≥) | 21 | 34 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 444 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 879 | 133 | 515 |
N07750 - 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 |
|---|---|---|---|
| N07750 | AISI | USA | Steel for exhaust valves |
| 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 |
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