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EN 1.4958 Stainless Steel vs. Grey Cast Iron

Both EN 1.4958 stainless steel and grey cast iron are iron alloys. They have 47% of their average alloy composition in common. There are 29 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 1.4958 stainless steel and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 40
9.6
Fatigue Strength, MPa 170
69 to 170
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
69
Shear Strength, MPa 430
180 to 610
Tensile Strength: Ultimate (UTS), MPa 630
160 to 450
Tensile Strength: Yield (Proof), MPa 190
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1400
1380
Melting Onset (Solidus), °C 1350
1180
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 12
46
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 30
1.9
Density, g/cm3 8.0
7.5
Embodied Carbon, kg CO2/kg material 5.3
1.5
Embodied Energy, MJ/kg 75
21
Embodied Water, L/kg 200
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 95
27 to 240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
5.8 to 17
Strength to Weight: Bending, points 20
8.7 to 17
Thermal Diffusivity, mm2/s 3.2
13
Thermal Shock Resistance, points 15
6.0 to 17

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0
Carbon (C), % 0.030 to 0.080
3.1 to 3.4
Chromium (Cr), % 19 to 22
0
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 41.1 to 50.6
92.1 to 93.9
Manganese (Mn), % 0 to 1.5
0.5 to 0.7
Nickel (Ni), % 30 to 32.5
0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0 to 0.9
Silicon (Si), % 0 to 0.7
2.5 to 2.8
Sulfur (S), % 0 to 0.010
0 to 0.15
Titanium (Ti), % 0.2 to 0.5
0