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EN 1.0038 Steel vs. SAE-AISI 1044 Steel

Both EN 1.0038 steel and SAE-AISI 1044 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.0038 steel and the bottom bar is SAE-AISI 1044 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 120
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23 to 25
18
Fatigue Strength, MPa 140 to 160
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 240 to 270
380
Tensile Strength: Ultimate (UTS), MPa 380 to 430
620
Tensile Strength: Yield (Proof), MPa 200 to 220
340

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 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 48
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72 to 88
94
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 130
320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13 to 15
22
Strength to Weight: Bending, points 15 to 16
21
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 12 to 13
20

Alloy Composition

Carbon (C), % 0 to 0.23
0.43 to 0.5
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 97.1 to 100
98.8 to 99.27
Manganese (Mn), % 0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.080
0
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0 to 0.014
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.55
0
Sulfur (S), % 0 to 0.045
0 to 0.050