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Hot Rolled EN 1.4618 vs. Hot Rolled SAE-AISI 1055

Both hot rolled EN 1.4618 and hot rolled SAE-AISI 1055 are iron alloys. Both are furnished in the hot worked condition. They have 68% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is hot rolled EN 1.4618 and the bottom bar is hot rolled SAE-AISI 1055.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 51
14
Fatigue Strength, MPa 240
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 480
440
Tensile Strength: Ultimate (UTS), MPa 680
730
Tensile Strength: Yield (Proof), MPa 250
400

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 900
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 39
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
85
Resilience: Unit (Modulus of Resilience), kJ/m3 160
440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
26
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 15
23

Alloy Composition

Carbon (C), % 0 to 0.1
0.5 to 0.6
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 62.7 to 72.5
98.4 to 98.9
Manganese (Mn), % 5.5 to 9.5
0.6 to 0.9
Nickel (Ni), % 4.5 to 5.5
0
Nitrogen (N), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.070
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.010
0 to 0.050