EN 1.4889 (GX40NiCrNb45-35) Casting Alloy
Other Steels
Property Overview
Density7.9g/cm³
Elastic Modulus200GPa
Tensile Strength440MPa
Yield Strength270MPa
Brinell HardnessUnknown
Maximum Service Temperature1160°C
Chemical Composition
C
0.35 to 0.45%
CR
32.5 to 37.5%
NI
42 to 46%
MN
1.0 to 1.5%
SI
1.5 to 2.0%
P
0 to 0.040%
S
0 to 0.030%
NB
1.5 to 2.0%
FE
10.5 to 21.2%
Mechanical
A - Min. elongation at fracture (%)
3
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
3.4 %
Fatigue Strength
110 MPa
Poisson's Ratio
0.27
R p0.2 0.2% proof strength (MPa)
240
Rm - Tensile strength (MPa)
440
Shear Modulus
79 GPa
Tensile Strength: Ultimate (UTS)
500 MPa
Tensile Strength: Yield (Proof)
270 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
7.9 g/cm 3
Thermal
Latent Heat of Fusion
350 J/g
Maximum Temperature: Mechanical
1160 °C
Melting Completion (Liquidus)
1360 °C
Melting Onset (Solidus)
1320 °C
Specific Heat Capacity
480 J/kg-K
Thermal Expansion
14 µm/m-K
Thermal Shock Resistance
13 points
Calculated
Resilience: Ultimate (Unit Rupture Work)
14 MJ/m 3
Resilience: Unit (Modulus of Resilience)
180 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
18 points
Environmental
Base Metal Price
55 % relative
Embodied Carbon
8.5 kg CO 2 /kg material
Embodied Energy
120 MJ/kg
Embodied Energy
120 MJ/kg 53 x 10 3 BTU/lb
Embodied Water
280 L/kg
Embodied Water
280 L/kg 34 gal/lb
Registered Designations & Aliases
1.48891.4889EN 1.4889 (GX40NiCrNb45-35) Casting AlloyGX40NiCrNb45-35GX40NiCrNb45-35
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 Welding Metallurgy and Weldability of Nickel-Base Alloys, John C. Lippold et al., 2009 Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971 Nickel Alloys, Ulrich Heubner (editor), 1998