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DIN 2.4668 Details

NiCr19Fe19Nb5Mo3;  NiCr19Fe19Nb5Mn3

DIN 2.4668 Standard Download

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2.4668 Application:Classification and designation for superalloys and high temperature intermetallic materials
Category Type Grade Designations
Grades Superalloys 2.4668 Germany - DIN , DIN 17744 (2002) - Wrought nickel alloys with molybdenum and chromium - Chemical composition
DIN 17750 (2002) - Plates, strips and sheets of wrought nickel and nickel alloys - Properties
DIN 17752 (2002) - Rods and bars of wrought and nickel alloys - Properties
DIN 17753 (2002) - Wires of wrought nickel and nickel alloys - Properties
DIN EN 10088-1 - Stainless steels - Part 1: List of stainless steels
DIN EN 10302 (2002) - Creep resisting steels, nickel and cobalt alloys
Chemical composition(mass fraction)(wt.%)
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
Mechanical properties of grade 2.4668
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)
391 (≥) 941 (≥) 12 44 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 224
Physical properties of grade 2.4668
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
427 (≥) 716 (≥) 32 13 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 314
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
843 542 884
2.4668 Range of products
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
2.4668 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

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