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EN 1.8946 Steel vs. SAE-AISI 4047 Steel

Both EN 1.8946 steel and SAE-AISI 4047 steel are iron alloys. They have a very high 98% 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 1.8946 steel and the bottom bar is SAE-AISI 4047 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
23
Fatigue Strength, MPa 260
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
370
Tensile Strength: Ultimate (UTS), MPa 580
580
Tensile Strength: Yield (Proof), MPa 390
310

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 43
48
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.7
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 51
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82
110
Resilience: Unit (Modulus of Resilience), kJ/m3 410
260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 17
18

Alloy Composition

Aluminum (Al), % 0 to 0.030
0
Carbon (C), % 0 to 0.15
0.45 to 0.5
Chromium (Cr), % 0.25 to 1.4
0
Copper (Cu), % 0.2 to 0.6
0
Iron (Fe), % 94.8 to 99.5
97.9 to 98.5
Manganese (Mn), % 0 to 1.1
0.7 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.7
0
Niobium (Nb), % 0 to 0.065
0
Phosphorus (P), % 0.050 to 0.16
0 to 0.035
Silicon (Si), % 0 to 0.8
0.15 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.040
Titanium (Ti), % 0 to 0.12
0
Vanadium (V), % 0 to 0.14
0