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EN 1.4986 Stainless Steel vs. Grey Cast Iron

Both EN 1.4986 stainless steel and grey cast iron are iron alloys. They have 64% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4986 stainless steel and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 18
9.6
Fatigue Strength, MPa 350
69 to 170
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
69
Shear Strength, MPa 460
180 to 610
Tensile Strength: Ultimate (UTS), MPa 750
160 to 450
Tensile Strength: Yield (Proof), MPa 560
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1400
1180
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 15
46
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.9
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 4.8
1.5
Embodied Energy, MJ/kg 67
21
Embodied Water, L/kg 150
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 790
27 to 240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
5.8 to 17
Strength to Weight: Bending, points 23
8.7 to 17
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 16
6.0 to 17

Alloy Composition

Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
3.1 to 3.4
Chromium (Cr), % 15.5 to 17.5
0
Iron (Fe), % 59.4 to 66.6
92.1 to 93.9
Manganese (Mn), % 0 to 1.5
0.5 to 0.7
Molybdenum (Mo), % 1.6 to 2.0
0
Nickel (Ni), % 15.5 to 17.5
0
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.9
Silicon (Si), % 0.3 to 0.6
2.5 to 2.8
Sulfur (S), % 0 to 0.030
0 to 0.15