Type 2 (K94840) Iron-Nickel Soft Magnetic Alloy
Other Steels
Property Overview
Density8.4g/cm³
Elastic Modulus190GPa
Tensile Strength510 to 910MPa
Yield Strength260 to 870MPa
Brinell HardnessUnknown
Maximum Service TemperatureUnknown
Chemical Composition
C
0 to 0.050%
CR
0 to 0.3%
NI
47 to 49%
MO
0 to 0.3%
MN
0 to 0.8%
SI
0 to 0.5%
P
0 to 0.010%
S
0 to 0.030%
CU
0 to 0.3%
CO
0 to 0.5%
FE
48.2 to 53%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
2.0 to 38 %
Poisson's Ratio
0.3
Shear Modulus
72 GPa
Tensile Strength: Ultimate (UTS)
510 to 910 MPa
Tensile Strength: Yield (Proof)
260 to 870 MPa
Physical
Density
8.4 g/cm 3
Thermal
Curie Temperature
480 °C
Latent Heat of Fusion
270 J/g
Melting Completion (Liquidus)
1420 °C
Melting Onset (Solidus)
1370 °C
Specific Heat Capacity
460 J/kg-K
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
16 to 29 points
Electrical
Electrical Conductivity: Equal Volume
3.9 % IACS
Electrical Conductivity: Equal Weight (Specific)
4.2 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
18 to 160 MJ/m 3
Resilience: Unit (Modulus of Resilience)
170 to 2010 kJ/m 3
Stiffness to Weight: Axial
12 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
17 to 30 points
Strength to Weight: Bending
17 to 25 points
Environmental
Base Metal Price
33 % relative
Embodied Carbon
5.9 kg CO 2 /kg material
Embodied Energy
81 MJ/kg
Embodied Energy
81 MJ/kg 35 x 10 3 BTU/lb
Embodied Water
140 L/kg
Embodied Water
140 L/kg 17 gal/lb
Registered Designations & Aliases
K94840Type 2 (K94840) Iron-Nickel Soft Magnetic Alloy
Standards
ASTM A753 ASTM A753: Standard Specification for Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080)
ASTM A753 ASTM A753: Standard Specification for Wrought Nickel-Iron Soft Magnetic Alloys (UNS K94490, K94840, N14076, N14080) Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993