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Grade M3210 Cast Iron vs. Annealed S20910 Stainless Steel

Both grade M3210 cast iron and annealed S20910 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 58% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade M3210 cast iron and the bottom bar is annealed S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
230
Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 10
39
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 70
79
Tensile Strength: Ultimate (UTS), MPa 350
780
Tensile Strength: Yield (Proof), MPa 220
430

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 41
13
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
22
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 1.5
4.8
Embodied Energy, MJ/kg 20
68
Embodied Water, L/kg 45
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
260
Resilience: Unit (Modulus of Resilience), kJ/m3 130
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 13
28
Strength to Weight: Bending, points 14
24
Thermal Diffusivity, mm2/s 11
3.6
Thermal Shock Resistance, points 9.9
17

Alloy Composition

Carbon (C), % 2.2 to 2.9
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Iron (Fe), % 93.6 to 96.7
52.1 to 62.1
Manganese (Mn), % 0.15 to 1.3
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0.020 to 0.15
0 to 0.040
Silicon (Si), % 0.9 to 1.9
0 to 0.75
Sulfur (S), % 0.020 to 0.2
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3