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Annealed AISI 420 vs. Annealed K94200

Both annealed AISI 420 and annealed K94200 are iron alloys. Both are furnished in the annealed condition. There are 23 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 annealed AISI 420 and the bottom bar is annealed K94200.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
130
Elastic (Young's, Tensile) Modulus, GPa 190
140
Elongation at Break, % 15
32
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
54
Shear Strength, MPa 420
330
Tensile Strength: Ultimate (UTS), MPa 690
500
Tensile Strength: Yield (Proof), MPa 380
270

Thermal Properties

Melting Onset (Solidus), °C 1450
1440
Specific Heat Capacity, J/kg-K 480
500
Thermal Conductivity, W/m-K 27
15
Thermal Expansion, µm/m-K 10
5.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
3.0

Otherwise Unclassified Properties

Density, g/cm3 7.7
8.2

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88
130
Resilience: Unit (Modulus of Resilience), kJ/m3 380
250
Stiffness to Weight: Axial, points 14
9.8
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 7.3
3.7
Thermal Shock Resistance, points 25
49