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EN 1.6311 Steel vs. EN 1.0031 Steel

Both EN 1.6311 steel and EN 1.0031 steel are iron alloys. They have a very high 98% of their average alloy composition in common. 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 1.6311 steel and the bottom bar is EN 1.0031 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
89
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
28
Fatigue Strength, MPa 340
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 400
200
Tensile Strength: Ultimate (UTS), MPa 650
310
Tensile Strength: Yield (Proof), MPa 490
210

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
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 39
53
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 22
18
Embodied Water, L/kg 51
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
78
Resilience: Unit (Modulus of Resilience), kJ/m3 650
120
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23
11
Strength to Weight: Bending, points 21
13
Thermal Diffusivity, mm2/s 10
14
Thermal Shock Resistance, points 19
9.8

Alloy Composition

Carbon (C), % 0.15 to 0.23
0 to 0.1
Chromium (Cr), % 0 to 0.5
0
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 95.9 to 98
98.8 to 100
Manganese (Mn), % 1.0 to 1.5
0 to 0.7
Molybdenum (Mo), % 0.45 to 0.6
0
Nickel (Ni), % 0.4 to 0.8
0
Nitrogen (N), % 0 to 0.012
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
Vanadium (V), % 0 to 0.020
0