MakeItFrom.com
Menu (ESC)

EN 1.0031 Steel vs. EN 1.1140 Steel

Both EN 1.0031 steel and EN 1.1140 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0031 steel and the bottom bar is EN 1.1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 89
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 28
28
Fatigue Strength, MPa 160
170
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 200
280
Tensile Strength: Ultimate (UTS), MPa 310
430
Tensile Strength: Yield (Proof), MPa 210
230

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
100
Resilience: Unit (Modulus of Resilience), kJ/m3 120
140
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 11
15
Strength to Weight: Bending, points 13
16
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 9.8
14

Alloy Composition

Carbon (C), % 0 to 0.1
0.12 to 0.18
Iron (Fe), % 98.8 to 100
98.7 to 99.56
Manganese (Mn), % 0 to 0.7
0.3 to 0.6
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.045
0.020 to 0.040