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ASTM B 637 N07750 Type 1 Details

B 637 N07750 Type 1 Application:Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service

Category Type Grade Designations
Grades Superalloys B 637 N07750 Type 1 USA - ASTM , B 637 (2012) - Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service

Chemical composition(wt.%) of B 637 N07750 Type 1 grade: B 637 (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Mn - 1.0
Si - 0.5
S - 0.01
P - 0.015
Cu - 0.5
Fe 5.0 9.0
Co - 1.0
Nb 0.70 1.20
Cr 14.0 17.0
Ni 70 -
Al 0.40 1.00
Ti 2.25 2.75
N07750, Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service

Mechanical properties of grade B 637 N07750 Type 1 B 637 (2012)

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)
596 (≥) 141 (≥) 42 32 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical properties of grade B 637 N07750 Type 1 B 637 (2012)

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
472 (≥) 738 (≥) 43 24 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 421
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
855 774 741

B 637 N07750 Type 1 - 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
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
N07750 AISI USA
Steel for exhaust valves
NiCr15Fe7TiAl ISO International
Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines

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