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SAE-AISI 1055 Steel vs. K94200 Alloy

Both SAE-AISI 1055 steel and K94200 alloy are iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1055 steel and the bottom bar is K94200 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Elongation at Break, % 11 to 14
5.0 to 32
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 72
54
Shear Strength, MPa 440 to 450
330 to 410
Tensile Strength: Ultimate (UTS), MPa 730 to 750
500 to 710
Tensile Strength: Yield (Proof), MPa 400 to 630
270 to 650

Thermal Properties

Melting Onset (Solidus), °C 1420
1440
Specific Heat Capacity, J/kg-K 470
500
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
5.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 12
3.0

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.2

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 85
35 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1070
250 to 1460
Stiffness to Weight: Axial, points 13
9.8
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 26
17 to 24
Strength to Weight: Bending, points 23
17 to 22
Thermal Diffusivity, mm2/s 14
3.7
Thermal Shock Resistance, points 23 to 24
49 to 70