MakeItFrom.com
Menu (ESC)

EN 1.0308 Steel vs. SAE-AISI 4042 Steel

Both EN 1.0308 steel and SAE-AISI 4042 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0308 steel and the bottom bar is SAE-AISI 4042 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 130
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 7.8 to 28
13
Fatigue Strength, MPa 140 to 200
360
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 230 to 260
410
Tensile Strength: Ultimate (UTS), MPa 360 to 440
680
Tensile Strength: Yield (Proof), MPa 190 to 340
570

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 51
49
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 46
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 32 to 95
81
Resilience: Unit (Modulus of Resilience), kJ/m3 93 to 300
860
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13 to 16
24
Strength to Weight: Bending, points 14 to 16
22
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 11 to 14
22

Alloy Composition

Carbon (C), % 0 to 0.17
0.4 to 0.45
Iron (Fe), % 98.2 to 100
97.9 to 98.6
Manganese (Mn), % 0 to 1.2
0.7 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.35
0.15 to 0.35
Sulfur (S), % 0 to 0.045
0 to 0.040