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EN 1.0558 Cast Steel vs. S31266 Stainless Steel

Both EN 1.0558 cast steel and S31266 stainless steel are iron alloys. They have 40% 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 1.0558 cast steel and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 18
40
Fatigue Strength, MPa 230
400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 640
860
Tensile Strength: Yield (Proof), MPa 340
470

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1470
1470
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 53
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.7
37
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 1.4
6.5
Embodied Energy, MJ/kg 18
89
Embodied Water, L/kg 45
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
290
Resilience: Unit (Modulus of Resilience), kJ/m3 300
540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
29
Strength to Weight: Bending, points 21
24
Thermal Diffusivity, mm2/s 14
3.1
Thermal Shock Resistance, points 20
18

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 0
1.0 to 2.5
Iron (Fe), % 99.935 to 100
34.1 to 46
Manganese (Mn), % 0
2.0 to 4.0
Molybdenum (Mo), % 0
5.2 to 6.2
Nickel (Ni), % 0
21 to 24
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5