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EN 1.1203 Steel vs. SAE-AISI 5160 Steel

Both EN 1.1203 steel and SAE-AISI 5160 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.1203 steel and the bottom bar is SAE-AISI 5160 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 230
200 to 340
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 15
12 to 18
Fatigue Strength, MPa 210 to 310
180 to 650
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 420 to 480
390 to 700
Tensile Strength: Ultimate (UTS), MPa 690 to 780
660 to 1150
Tensile Strength: Yield (Proof), MPa 340 to 480
280 to 1010

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
43
Thermal Expansion, µm/m-K 12
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 47
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 100
73 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 610
200 to 2700
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 28
23 to 41
Strength to Weight: Bending, points 22 to 24
22 to 31
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 22 to 25
19 to 34

Alloy Composition

Carbon (C), % 0.52 to 0.6
0.56 to 0.61
Chromium (Cr), % 0 to 0.4
0.7 to 0.9
Iron (Fe), % 97.1 to 98.9
97.1 to 97.8
Manganese (Mn), % 0.6 to 0.9
0.75 to 1.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
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

Comparable Variants