UNS K93050 Low Expansion Alloy
Other Steels
annealed
Property Overview
Density8.2g/cm³
Elastic Modulus190GPa
Tensile Strength500MPa
Yield Strength300MPa
Brinell HardnessUnknown
Maximum Service TemperatureUnknown
Chemical Composition
C
0 to 0.15%
CR
0 to 0.25%
NI
36 to 36%
MN
0 to 1.0%
SI
0 to 0.35%
P
0 to 0.020%
S
0 to 0.020%
CO
0 to 0.5%
SE
0.15 to 0.3%
FE
61.4 to 63.9%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Poisson's Ratio
0.3
Shear Modulus
72 GPa
Tensile Strength: Ultimate (UTS)
500 MPa
Tensile Strength: Yield (Proof)
300 MPa
Physical
Density
8.2 g/cm 3
Thermal
Latent Heat of Fusion
270 J/g
Melting Completion (Liquidus)
1430 °C
Melting Onset (Solidus)
1380 °C
Specific Heat Capacity
460 J/kg-K
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
16 points
Calculated
Resilience: Unit (Modulus of Resilience)
240 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
17 points
Strength to Weight: Bending
17 points
Environmental
Base Metal Price
26 % relative
Embodied Carbon
4.7 kg CO 2 /kg material
Embodied Energy
65 MJ/kg
Embodied Energy
65 MJ/kg 28 x 10 3 BTU/lb
Embodied Water
120 L/kg
Embodied Water
120 L/kg 14 gal/lb
Registered Designations & Aliases
K93050UNS K93050 Low Expansion Alloy
Standards
ASTM F1684 ASTM F1684: Standard Specification for Iron-Nickel and Iron-Nickel-Cobalt Alloys for Low Thermal Expansion Applications
ASTM F1684 ASTM F1684: Standard Specification for Iron-Nickel and Iron-Nickel-Cobalt Alloys for Low Thermal Expansion Applications Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993