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AISI N07750 Details

N07750 Application:Steel for exhaust valves

Category Type Grade Designations
Grades Stainless Steels - Special Steels N07750 USA - AISI ,

Chemical composition(wt.%) of N07750 grade:

Elements Min.(≥) Max.(≤)
C - 0.08
Si - 0.50
Mn - 1.00
P - -
S - 0.010
Cr 14.0 17.0
Ni 70.0 -
Steel for exhaust valves

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)
947 (≥) 867 (≥) 23 34 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

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
158 (≥) 976 (≥) 44 43 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 344
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
192 445 157

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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