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EN 1.5508 Steel vs. EN 1.4931 Steel

Both EN 1.5508 steel and EN 1.4931 steel are iron alloys. They have 86% of their average alloy composition in common. There are 30 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 EN 1.5508 steel and the bottom bar is EN 1.4931 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
240
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 20
17
Fatigue Strength, MPa 210 to 320
410
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 420 to 1460
810
Tensile Strength: Yield (Proof), MPa 310 to 490
620

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
600
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
24
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
11

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
8.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.9
Embodied Energy, MJ/kg 19
42
Embodied Water, L/kg 47
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
130
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 640
970
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 52
29
Strength to Weight: Bending, points 16 to 36
25
Thermal Diffusivity, mm2/s 14
6.5
Thermal Shock Resistance, points 12 to 43
22

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.25
0.2 to 0.26
Chromium (Cr), % 0 to 0.3
11.3 to 12.2
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.9 to 99.199
83.2 to 86.8
Manganese (Mn), % 0.6 to 0.9
0.5 to 0.8
Molybdenum (Mo), % 0
1.0 to 1.2
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.3
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.020
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0
0.25 to 0.35