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EN 1.0044 Steel vs. EN 1.0456 Steel

Both EN 1.0044 steel and EN 1.0456 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0044 steel and the bottom bar is EN 1.0456 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
120 to 130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
24 to 26
Fatigue Strength, MPa 180
210 to 220
Impact Strength: V-Notched Charpy, J 31
38 to 45
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
270 to 280
Tensile Strength: Ultimate (UTS), MPa 470
420 to 450
Tensile Strength: Yield (Proof), MPa 250
290 to 300

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.2
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 47
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85
93 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 170
220 to 230
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
15 to 16
Strength to Weight: Bending, points 17
16 to 17
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 15
13 to 14

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 0 to 0.25
0 to 0.2
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.6
0 to 0.35
Iron (Fe), % 97.4 to 100
96.7 to 99.48
Manganese (Mn), % 0 to 1.6
0.5 to 1.4
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.3
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.014
0 to 0.015
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0 to 0.045
0 to 0.030
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.050