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EN 1.5402 Steel vs. SAE-AISI 4142 Steel

Both EN 1.5402 steel and SAE-AISI 4142 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.5402 steel and the bottom bar is SAE-AISI 4142 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
20
Fatigue Strength, MPa 260
250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 370
370
Tensile Strength: Ultimate (UTS), MPa 580
590
Tensile Strength: Yield (Proof), MPa 370
370

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
420
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
44
Thermal Expansion, µm/m-K 13
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 22
20
Embodied Water, L/kg 49
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
100
Resilience: Unit (Modulus of Resilience), kJ/m3 360
360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 17
19

Alloy Composition

Carbon (C), % 0 to 0.18
0.4 to 0.45
Chromium (Cr), % 0
0.8 to 1.1
Iron (Fe), % 97.3 to 98.7
96.8 to 97.8
Manganese (Mn), % 0.9 to 1.4
0.75 to 1.0
Molybdenum (Mo), % 0.4 to 0.6
0.15 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040
Vanadium (V), % 0.040 to 0.080
0