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EN 1.8824 Steel vs. EN 1.0044 Steel

Both EN 1.8824 steel and EN 1.0044 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.8824 steel and the bottom bar is EN 1.0044 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
21
Fatigue Strength, MPa 310
180
Impact Strength: V-Notched Charpy, J 67
31
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 370
300
Tensile Strength: Ultimate (UTS), MPa 580
470
Tensile Strength: Yield (Proof), MPa 440
250

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
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
1.9
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 21
18
Embodied Water, L/kg 48
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
85
Resilience: Unit (Modulus of Resilience), kJ/m3 530
170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
17
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 17
15

Alloy Composition

Aluminum (Al), % 0.020 to 0.040
0
Carbon (C), % 0 to 0.16
0 to 0.25
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 96.6 to 99.98
97.4 to 100
Manganese (Mn), % 0 to 1.7
0 to 1.6
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.020
0 to 0.014
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.010
0 to 0.045
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.1
0