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SAE-AISI 1046 Steel vs. EN 1.7390 Steel

Both SAE-AISI 1046 steel and EN 1.7390 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 32 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 SAE-AISI 1046 steel and the bottom bar is EN 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 210
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14 to 17
16
Fatigue Strength, MPa 240 to 390
310
Poisson's Ratio 0.29
0.29
Reduction in Area, % 39 to 50
50
Shear Modulus, GPa 72
74
Shear Strength, MPa 410 to 450
440
Tensile Strength: Ultimate (UTS), MPa 660 to 740
710
Tensile Strength: Yield (Proof), MPa 370 to 610
480

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
510
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
40
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 12
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 18
23
Embodied Water, L/kg 46
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 95
100
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 990
600
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 26
25
Strength to Weight: Bending, points 22 to 23
23
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 23 to 25
20

Alloy Composition

Carbon (C), % 0.43 to 0.5
0 to 0.18
Chromium (Cr), % 0
4.0 to 6.0
Iron (Fe), % 98.4 to 98.9
91.9 to 95.3
Manganese (Mn), % 0.7 to 1.0
0.3 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0 to 0.050
0 to 0.015