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EN 1.4523 Stainless Steel vs. SAE-AISI 1018 Steel

Both EN 1.4523 stainless steel and SAE-AISI 1018 steel are iron alloys. They have 78% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4523 stainless steel and the bottom bar is SAE-AISI 1018 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
17 to 27
Fatigue Strength, MPa 190
180 to 270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 320
280 to 300
Tensile Strength: Ultimate (UTS), MPa 520
430 to 480
Tensile Strength: Yield (Proof), MPa 320
240 to 400

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 920
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 22
52
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.9
1.4
Embodied Energy, MJ/kg 40
18
Embodied Water, L/kg 130
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77
75 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 260
150 to 430
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
15 to 17
Strength to Weight: Bending, points 18
16 to 17
Thermal Diffusivity, mm2/s 5.8
14
Thermal Shock Resistance, points 18
14 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0 to 0.030
0.15 to 0.2
Chromium (Cr), % 17.5 to 19
0
Iron (Fe), % 75.7 to 80.2
98.8 to 99.25
Manganese (Mn), % 0 to 0.5
0.6 to 0.9
Molybdenum (Mo), % 2.0 to 2.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0.15 to 0.35
0 to 0.050
Titanium (Ti), % 0.15 to 0.8
0