Temper A (Annealed) K93050 Alloy
Annealed K93050 alloy is K93050 alloy in the annealed condition. It has the lowest strength compared to the other variants of K93050 alloy. The graph bars on the material properties cards below compare annealed K93050 alloy to: low-expansion iron alloys (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
190 GPa 27 x 106 psi
Poisson's Ratio
0.3
Shear Modulus
72 GPa 10 x 106 psi
Tensile Strength: Ultimate (UTS)
500 MPa 73 x 103 psi
Tensile Strength: Yield (Proof)
300 MPa 43 x 103 psi
Thermal Properties
Latent Heat of Fusion
270 J/g
Melting Completion (Liquidus)
1430 °C 2600 °F
Melting Onset (Solidus)
1380 °C 2520 °F
Specific Heat Capacity
460 J/kg-K 0.11 BTU/lb-°F
Thermal Expansion
12 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
26 % relative
Density
8.2 g/cm3 510 lb/ft3
Embodied Carbon
4.7 kg CO2/kg material
Embodied Energy
65 MJ/kg 28 x 103 BTU/lb
Embodied Water
120 L/kg 14 gal/lb
Common Calculations
Resilience: Unit (Modulus of Resilience)
240 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
17 points
Strength to Weight: Bending
17 points
Thermal Shock Resistance
16 points
Alloy Composition
| Fe | 61.4 to 63.9 | |
| Ni | 36 to 36 | |
| Mn | 0 to 1.0 | |
| Co | 0 to 0.5 | |
| Se | 0.15 to 0.3 | |
| Si | 0 to 0.35 | |
| Cr | 0 to 0.25 | |
| C | 0 to 0.15 | |
| P | 0 to 0.020 | |
| S | 0 to 0.020 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
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
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015