MakeItFrom.com
Menu (ESC)

Grey Cast Iron vs. EN 1.4945 Stainless Steel

Both grey cast iron and EN 1.4945 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grey cast iron and the bottom bar is EN 1.4945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 300
200 to 220
Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 9.6
19 to 34
Fatigue Strength, MPa 69 to 170
230 to 350
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 69
77
Shear Strength, MPa 180 to 610
430 to 460
Tensile Strength: Ultimate (UTS), MPa 160 to 450
640 to 740
Tensile Strength: Yield (Proof), MPa 98 to 290
290 to 550

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Melting Completion (Liquidus), °C 1380
1490
Melting Onset (Solidus), °C 1180
1440
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 46
14
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
30
Density, g/cm3 7.5
8.1
Embodied Carbon, kg CO2/kg material 1.5
5.0
Embodied Energy, MJ/kg 21
73
Embodied Water, L/kg 44
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 37
130 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 27 to 240
210 to 760
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 5.8 to 17
22 to 25
Strength to Weight: Bending, points 8.7 to 17
20 to 22
Thermal Diffusivity, mm2/s 13
3.7
Thermal Shock Resistance, points 6.0 to 17
14 to 16

Alloy Composition

Carbon (C), % 3.1 to 3.4
0.040 to 0.1
Chromium (Cr), % 0
15.5 to 17.5
Iron (Fe), % 92.1 to 93.9
57.9 to 65.7
Manganese (Mn), % 0.5 to 0.7
0 to 1.5
Nickel (Ni), % 0
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0 to 0.9
0 to 0.035
Silicon (Si), % 2.5 to 2.8
0.3 to 0.6
Sulfur (S), % 0 to 0.15
0 to 0.015
Tungsten (W), % 0
2.5 to 3.5