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SAE-AISI 1049 Steel vs. EN 1.1131 Cast Steel

Both SAE-AISI 1049 steel and EN 1.1131 cast steel are iron alloys. Their average alloy composition is basically identical. There are 29 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 SAE-AISI 1049 steel and the bottom bar is EN 1.1131 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
27
Fatigue Strength, MPa 250 to 400
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 680 to 750
530
Tensile Strength: Yield (Proof), MPa 370 to 640
270

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
52
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 46
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 99
120
Resilience: Unit (Modulus of Resilience), kJ/m3 370 to 1090
200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 27
19
Strength to Weight: Bending, points 22 to 23
18
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 22 to 24
17

Alloy Composition

Carbon (C), % 0.46 to 0.53
0.15 to 0.2
Iron (Fe), % 98.5 to 98.9
97.6 to 98.9
Manganese (Mn), % 0.6 to 0.9
1.0 to 1.6
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0 to 0.050
0 to 0.030