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Annealed AISI 420 vs. Grade M3210 Cast Iron

Both annealed AISI 420 and grade M3210 cast iron are iron alloys. Both are furnished in the annealed condition. They have 86% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is annealed AISI 420 and the bottom bar is grade M3210 cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
130
Elastic (Young's, Tensile) Modulus, GPa 190
180
Elongation at Break, % 15
10
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
70
Tensile Strength: Ultimate (UTS), MPa 690
350
Tensile Strength: Yield (Proof), MPa 380
220

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1510
1410
Melting Onset (Solidus), °C 1450
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
41
Thermal Expansion, µm/m-K 10
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
1.9
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.0
1.5
Embodied Energy, MJ/kg 28
20
Embodied Water, L/kg 100
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88
30
Resilience: Unit (Modulus of Resilience), kJ/m3 380
130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
13
Strength to Weight: Bending, points 22
14
Thermal Diffusivity, mm2/s 7.3
11
Thermal Shock Resistance, points 25
9.9

Alloy Composition

Carbon (C), % 0.15 to 0.4
2.2 to 2.9
Chromium (Cr), % 12 to 14
0
Iron (Fe), % 82.3 to 87.9
93.6 to 96.7
Manganese (Mn), % 0 to 1.0
0.15 to 1.3
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.75
0
Phosphorus (P), % 0 to 0.040
0.020 to 0.15
Silicon (Si), % 0 to 1.0
0.9 to 1.9
Sulfur (S), % 0 to 0.030
0.020 to 0.2