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EN 1.1133 Steel vs. EN 1.0491 Steel

Both EN 1.1133 steel and EN 1.0491 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.1133 steel and the bottom bar is EN 1.0491 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 180
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19 to 24
26
Fatigue Strength, MPa 230 to 310
200
Impact Strength: V-Notched Charpy, J 45 to 48
49
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 370 to 380
280
Tensile Strength: Ultimate (UTS), MPa 580 to 620
440
Tensile Strength: Yield (Proof), MPa 320 to 460
270

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 49
47
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.6
Embodied Energy, MJ/kg 19
21
Embodied Water, L/kg 48
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
99
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 550
200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 22
16
Strength to Weight: Bending, points 20 to 21
16
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 18 to 19
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.015
Carbon (C), % 0.17 to 0.23
0 to 0.18
Chromium (Cr), % 0 to 0.4
0 to 0.35
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 96.9 to 98.8
96.1 to 99.55
Manganese (Mn), % 1.0 to 1.5
0.45 to 1.6
Molybdenum (Mo), % 0 to 0.1
0 to 0.13
Nickel (Ni), % 0 to 0.4
0 to 0.35
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.017
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.45
Sulfur (S), % 0 to 0.035
0 to 0.025
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.070