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EN 1.1191 Steel vs. EN 1.1141 Steel

Both EN 1.1191 steel and EN 1.1141 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 (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.1191 steel and the bottom bar is EN 1.1141 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
120
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16 to 17
28
Fatigue Strength, MPa 210 to 290
170
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 380 to 430
280
Tensile Strength: Ultimate (UTS), MPa 630 to 700
420
Tensile Strength: Yield (Proof), MPa 310 to 440
220

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 48
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 47
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 100
99
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 510
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 25
15
Strength to Weight: Bending, points 21 to 22
16
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 20 to 22
13

Alloy Composition

Carbon (C), % 0.42 to 0.5
0.12 to 0.18
Chromium (Cr), % 0 to 0.4
0
Iron (Fe), % 97.3 to 99.08
98.8 to 99.58
Manganese (Mn), % 0.5 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.035