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EN 1.0402 Steel vs. SAE-AISI 50B60 Steel

Both EN 1.0402 steel and SAE-AISI 50B60 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.0402 steel and the bottom bar is SAE-AISI 50B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
12 to 20
Fatigue Strength, MPa 170
240 to 330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 290
380
Tensile Strength: Ultimate (UTS), MPa 460
610 to 630
Tensile Strength: Yield (Proof), MPa 240
350 to 530

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
45
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.0
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
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
71 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 150
330 to 750
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16
22 to 23
Strength to Weight: Bending, points 17
20 to 21
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 15
20

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.17 to 0.24
0.56 to 0.64
Chromium (Cr), % 0 to 0.4
0.4 to 0.6
Iron (Fe), % 97.7 to 99.43
97.3 to 98.1
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