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EN 1.1131 Cast Steel vs. S39277 Stainless Steel

Both EN 1.1131 cast steel and S39277 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.1131 cast steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
28
Fatigue Strength, MPa 200
480
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 530
930
Tensile Strength: Yield (Proof), MPa 270
660

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
23
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
4.2
Embodied Energy, MJ/kg 19
59
Embodied Water, L/kg 47
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
240
Resilience: Unit (Modulus of Resilience), kJ/m3 200
1070
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
33
Strength to Weight: Bending, points 18
27
Thermal Diffusivity, mm2/s 14
4.2
Thermal Shock Resistance, points 17
26

Alloy Composition

Carbon (C), % 0.15 to 0.2
0 to 0.025
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 97.6 to 98.9
56.8 to 64.3
Manganese (Mn), % 1.0 to 1.6
0 to 0.8
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
6.5 to 8.0
Nitrogen (N), % 0
0.23 to 0.33
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.6
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2