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SAE-AISI 1118 Steel vs. EN 1.1170 Steel

Both SAE-AISI 1118 steel and EN 1.1170 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1118 steel and the bottom bar is EN 1.1170 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
180 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13
16 to 17
Fatigue Strength, MPa 260
220 to 330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
390 to 450
Tensile Strength: Ultimate (UTS), MPa 490
640 to 730
Tensile Strength: Yield (Proof), MPa 410
330 to 500

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
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 52
50
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 47
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61
91 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 450
290 to 670
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
23 to 26
Strength to Weight: Bending, points 18
21 to 23
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 15
20 to 23

Alloy Composition

Carbon (C), % 0.14 to 0.2
0.25 to 0.32
Chromium (Cr), % 0
0 to 0.4
Iron (Fe), % 98 to 98.5
96.7 to 98.5
Manganese (Mn), % 1.3 to 1.6
1.3 to 1.7
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0.080 to 0.13
0 to 0.035