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EN 1.0402 Steel vs. SAE-AISI 50B46 Steel

Both EN 1.0402 steel and SAE-AISI 50B46 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0402 steel and the bottom bar is SAE-AISI 50B46 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
21
Fatigue Strength, MPa 170
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 290
340
Tensile Strength: Ultimate (UTS), MPa 460
540
Tensile Strength: Yield (Proof), MPa 240
310

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
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 50
47
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 47
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
99
Resilience: Unit (Modulus of Resilience), kJ/m3 150
260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16
19
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 15
16

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.17 to 0.24
0.44 to 0.49
Chromium (Cr), % 0 to 0.4
0.2 to 0.35
Iron (Fe), % 97.7 to 99.43
97.7 to 98.5
Manganese (Mn), % 0.4 to 0.7
0.75 to 1.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.045
0 to 0.040