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Hot Rolled EN 1.4477 vs. Hot Rolled SAE-AISI 1141

Both hot rolled EN 1.4477 and hot rolled SAE-AISI 1141 are iron alloys. Both are furnished in the hot worked condition. They have 61% 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 1.4477 and the bottom bar is hot rolled SAE-AISI 1141.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
210
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
17
Fatigue Strength, MPa 420
270
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
72
Shear Strength, MPa 550
460
Tensile Strength: Ultimate (UTS), MPa 880
740
Tensile Strength: Yield (Proof), MPa 620
400

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
1.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.4
Embodied Energy, MJ/kg 52
19
Embodied Water, L/kg 190
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 940
430
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31
26
Strength to Weight: Bending, points 26
23
Thermal Diffusivity, mm2/s 3.5
14
Thermal Shock Resistance, points 23
24

Alloy Composition

Carbon (C), % 0 to 0.030
0.37 to 0.45
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 56.6 to 63.6
97.7 to 98.2
Manganese (Mn), % 0.8 to 1.5
1.4 to 1.7
Molybdenum (Mo), % 1.5 to 2.6
0
Nickel (Ni), % 5.8 to 7.5
0
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0.080 to 0.13