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EN 1.7233 Steel vs. SAE-AISI 4147 Steel

Both EN 1.7233 steel and SAE-AISI 4147 steel are iron alloys. Their average alloy composition is basically identical. 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 1.7233 steel and the bottom bar is SAE-AISI 4147 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 290
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 23
20
Fatigue Strength, MPa 270 to 530
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 450 to 590
380
Tensile Strength: Ultimate (UTS), MPa 700 to 960
610
Tensile Strength: Yield (Proof), MPa 380 to 780
380

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
420
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 39
44
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 21
20
Embodied Water, L/kg 53
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
110
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1630
380
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 34
22
Strength to Weight: Bending, points 22 to 28
20
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 21 to 28
20

Alloy Composition

Carbon (C), % 0.39 to 0.45
0.45 to 0.5
Chromium (Cr), % 1.2 to 1.5
0.8 to 1.1
Iron (Fe), % 96.2 to 97.5
96.7 to 97.7
Manganese (Mn), % 0.4 to 0.7
0.75 to 1.0
Molybdenum (Mo), % 0.5 to 0.7
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 0.035
0 to 0.040