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EN 1.7390 Steel vs. EN 1.0031 Steel

Both EN 1.7390 steel and EN 1.0031 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.7390 steel and the bottom bar is EN 1.0031 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
89
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
28
Fatigue Strength, MPa 310
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 440
200
Tensile Strength: Ultimate (UTS), MPa 710
310
Tensile Strength: Yield (Proof), MPa 480
210

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 510
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 40
53
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 23
18
Embodied Water, L/kg 69
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
78
Resilience: Unit (Modulus of Resilience), kJ/m3 600
120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
11
Strength to Weight: Bending, points 23
13
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 20
9.8

Alloy Composition

Carbon (C), % 0 to 0.18
0 to 0.1
Chromium (Cr), % 4.0 to 6.0
0
Iron (Fe), % 91.9 to 95.3
98.8 to 100
Manganese (Mn), % 0.3 to 0.8
0 to 0.7
Molybdenum (Mo), % 0.45 to 0.65
0
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.045