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ACI-ASTM CF8 Steel vs. K94200 Alloy

Both ACI-ASTM CF8 steel and K94200 alloy are iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF8 steel and the bottom bar is K94200 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 55
5.0 to 32
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
54
Tensile Strength: Ultimate (UTS), MPa 540
500 to 710
Tensile Strength: Yield (Proof), MPa 260
270 to 650

Thermal Properties

Melting Onset (Solidus), °C 1430
1440
Specific Heat Capacity, J/kg-K 480
500
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 15
5.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.0

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.2

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
35 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 160
250 to 1460
Stiffness to Weight: Axial, points 14
9.8
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 19
17 to 24
Strength to Weight: Bending, points 19
17 to 22
Thermal Diffusivity, mm2/s 4.3
3.7
Thermal Shock Resistance, points 13
49 to 70