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EN 1.5508 Steel vs. EN 1.1158 Steel

Both EN 1.5508 steel and EN 1.1158 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.5508 steel and the bottom bar is EN 1.1158 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 20
23 to 24
Fatigue Strength, MPa 210 to 320
170 to 220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300 to 360
300 to 320
Tensile Strength: Ultimate (UTS), MPa 420 to 1460
470 to 500
Tensile Strength: Yield (Proof), MPa 310 to 490
240 to 310

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
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 47
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 640
150 to 250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15 to 52
17 to 18
Strength to Weight: Bending, points 16 to 36
17 to 18
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 12 to 43
15 to 16

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.25
0.22 to 0.29
Chromium (Cr), % 0 to 0.3
0 to 0.4
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.9 to 99.199
97.6 to 99.38
Manganese (Mn), % 0.6 to 0.9
0.4 to 0.7
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.3
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035