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EN 1.7361 Steel vs. SAE-AISI 4137 Steel

Both EN 1.7361 steel and SAE-AISI 4137 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 1.7361 steel and the bottom bar is SAE-AISI 4137 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
23
Fatigue Strength, MPa 480
240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 600
350
Tensile Strength: Ultimate (UTS), MPa 1010
550
Tensile Strength: Yield (Proof), MPa 780
340

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 470
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 41
45
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 22
20
Embodied Water, L/kg 60
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1590
310
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 36
20
Strength to Weight: Bending, points 29
19
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 29
18

Alloy Composition

Carbon (C), % 0.28 to 0.35
0.35 to 0.4
Chromium (Cr), % 2.8 to 3.3
0.8 to 1.1
Iron (Fe), % 94.1 to 96.2
96.9 to 97.9
Manganese (Mn), % 0.4 to 0.7
0.7 to 0.9
Molybdenum (Mo), % 0.3 to 0.5
0.15 to 0.25
Nickel (Ni), % 0 to 0.6
0
Phosphorus (P), % 0 to 0.035
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