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EN 1.7375 Steel vs. SAE-AISI 5155 Steel

Both EN 1.7375 steel and SAE-AISI 5155 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.7375 steel and the bottom bar is SAE-AISI 5155 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
21
Fatigue Strength, MPa 270
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 380
390
Tensile Strength: Ultimate (UTS), MPa 620
620
Tensile Strength: Yield (Proof), MPa 400
380

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 460
420
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.4
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 59
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 420
380
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 18
20

Alloy Composition

Aluminum (Al), % 0.010 to 0.040
0
Carbon (C), % 0.1 to 0.15
0.51 to 0.59
Chromium (Cr), % 2.0 to 2.5
0.7 to 0.9
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 94.5 to 96.7
97.2 to 97.9
Manganese (Mn), % 0.3 to 0.8
0.7 to 0.9
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0 to 0.3
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040