EN 2.4680 (G-NiCr50Nb) Casting Alloy
Other
Property Overview
Density8g/cm³
Elastic Modulus210GPa
Tensile Strength540MPa
Yield Strength260MPa
Brinell HardnessUnknown
Maximum Service Temperature1050°C
Chemical Composition
C
0 to 0.1%
CR
48 to 52%
NI
42.9 to 51%
MO
0 to 0.5%
MN
0 to 0.5%
SI
0 to 1.0%
N
0 to 0.16%
P
0 to 0.020%
S
0 to 0.020%
NB
1.0 to 1.8%
FE
0 to 1.0%
Mechanical
A - Min. elongation at fracture (%)
8
Elastic (Young's, Tensile) Modulus
210 GPa
Elongation at Break
9.1 %
Fatigue Strength
120 MPa
Poisson's Ratio
0.26
R p0.2 0.2% proof strength (MPa)
230
Rm - Tensile strength (MPa)
540
Shear Modulus
84 GPa
Tensile Strength: Ultimate (UTS)
600 MPa
Tensile Strength: Yield (Proof)
260 MPa
Hardness
+A Soft annealed +AC Annealed to achieve spheroidization of the carbides +AR As rolled +AT Solution annealed +C Cold drawn / hard +CR Cold rolled +FP Treated to ferrite-pearlite structure and hardness range +I Isothermal annealing +LC Cold drawn / soft +M Thermo mechanical rolling +N Normalized +NT Normalized and tempered
+P Precipitation hardened +PE Peeled +QA Air quenched and tempered +QL Liquid quenched and tempered +QT Quenched and tempered +S Treated to improve shearability +SH As rolled and turned +SR Cold drawn and stress relieved +T Tempered +TH Treated to hardness range +WW Warm worked +U Untreated
+A
Physical
Density
8.0 g/cm 3
Thermal
Latent Heat of Fusion
350 J/g
Maximum Temperature: Mechanical
1050 °C
Melting Completion (Liquidus)
1360 °C
Melting Onset (Solidus)
1320 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
14 W/m-K
Thermal Diffusivity
3.7 mm 2 /s
Thermal Expansion
15 µm/m-K
Thermal Shock Resistance
14 points
Calculated
Resilience: Ultimate (Unit Rupture Work)
45 MJ/m 3
Resilience: Unit (Modulus of Resilience)
160 kJ/m 3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
21 points
Strength to Weight: Bending
20 points
Environmental
Base Metal Price
60 % relative
Embodied Carbon
9.1 kg CO 2 /kg material
Embodied Energy
130 MJ/kg
Embodied Energy
130 MJ/kg 57 x 10 3 BTU/lb
Embodied Water
350 L/kg
Embodied Water
350 L/kg 42 gal/lb
Registered Designations & Aliases
2.46802.4680EN 2.4680 (G-NiCr50Nb) Casting AlloyG-NiCr50NbG-NiCr50Nb
Standards
EN 10295 EN 10295: 2002 Heat resistant steel castings
EN 10295 EN 10295: Heat Resistant Steel Castings
EN 10295 EN 10295: Heat Resistant Steel Castings Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971 Nickel Alloys, Ulrich Heubner (editor), 1998