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EN 1.4518 Stainless Steel vs. SAE-AISI 1117 Steel

Both EN 1.4518 stainless steel and SAE-AISI 1117 steel are iron alloys. They have 67% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4518 stainless steel and the bottom bar is SAE-AISI 1117 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
17 to 26
Fatigue Strength, MPa 160
190 to 300
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 490
490 to 540
Tensile Strength: Yield (Proof), MPa 210
260 to 460

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 20
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.0
1.4
Embodied Energy, MJ/kg 55
18
Embodied Water, L/kg 160
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
86 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 100
180 to 550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
17 to 19
Strength to Weight: Bending, points 18
18 to 19
Thermal Diffusivity, mm2/s 4.1
14
Thermal Shock Resistance, points 14
15 to 17

Alloy Composition

Carbon (C), % 0 to 0.030
0.14 to 0.2
Chromium (Cr), % 18 to 20
0
Iron (Fe), % 61.4 to 70
98.3 to 98.8
Manganese (Mn), % 0 to 1.5
1.0 to 1.3
Molybdenum (Mo), % 3.0 to 3.5
0
Nickel (Ni), % 9.0 to 12
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13