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EN 1.4109 Stainless Steel vs. EN 1.5520 Steel

Both EN 1.4109 stainless steel and EN 1.5520 steel are iron alloys. They have 84% 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 1.4109 stainless steel and the bottom bar is EN 1.5520 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
120 to 170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 19
11 to 21
Fatigue Strength, MPa 270
210 to 300
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 480
290 to 340
Tensile Strength: Ultimate (UTS), MPa 770
410 to 1410
Tensile Strength: Yield (Proof), MPa 420
300 to 480

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 820
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
50
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
1.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.4
Embodied Energy, MJ/kg 30
19
Embodied Water, L/kg 110
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
42 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 460
240 to 600
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
15 to 50
Strength to Weight: Bending, points 24
16 to 36
Thermal Diffusivity, mm2/s 8.1
13
Thermal Shock Resistance, points 28
12 to 41

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.6 to 0.75
0.15 to 0.2
Chromium (Cr), % 14 to 16
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 80.7 to 85
97.7 to 98.9
Manganese (Mn), % 0 to 1.0
0.9 to 1.2
Molybdenum (Mo), % 0.4 to 0.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025