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EN 1.1158 Steel vs. EN 1.0031 Steel

Both EN 1.1158 steel and EN 1.0031 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.1158 steel and the bottom bar is EN 1.0031 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 150
89
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23 to 24
28
Fatigue Strength, MPa 170 to 220
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300 to 320
200
Tensile Strength: Ultimate (UTS), MPa 470 to 500
310
Tensile Strength: Yield (Proof), MPa 240 to 310
210

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
53
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 47
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 110
78
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 250
120
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 18
11
Strength to Weight: Bending, points 17 to 18
13
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 15 to 16
9.8

Alloy Composition

Carbon (C), % 0.22 to 0.29
0 to 0.1
Chromium (Cr), % 0 to 0.4
0
Iron (Fe), % 97.6 to 99.38
98.8 to 100
Manganese (Mn), % 0.4 to 0.7
0 to 0.7
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.045