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EN 1.1191 Steel vs. EN 1.0345 Steel

Both EN 1.1191 steel and EN 1.0345 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.1191 steel and the bottom bar is EN 1.0345 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
27
Fatigue Strength, MPa 210 to 290
170
Impact Strength: V-Notched Charpy, J 16 to 29
44
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 380 to 430
270
Tensile Strength: Ultimate (UTS), MPa 630 to 700
420
Tensile Strength: Yield (Proof), MPa 310 to 440
230

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
49
Thermal Expansion, µm/m-K 12
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.1
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 47
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 100
96
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 510
140
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
13
Thermal Shock Resistance, points 20 to 22
13

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.024
Carbon (C), % 0.42 to 0.5
0 to 0.16
Chromium (Cr), % 0 to 0.4
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 97.3 to 99.08
97.2 to 99.38
Manganese (Mn), % 0.5 to 0.8
0.6 to 1.2
Molybdenum (Mo), % 0 to 0.1
0 to 0.080
Nickel (Ni), % 0 to 0.4
0 to 0.3
Niobium (Nb), % 0
0 to 0.020
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.010
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.020