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EN 1.4409 Stainless Steel vs. EN 1.8507 Steel

Both EN 1.4409 stainless steel and EN 1.8507 steel are iron alloys. They have 68% 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 1.4409 stainless steel and the bottom bar is EN 1.8507 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
270
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
16
Fatigue Strength, MPa 180
440
Impact Strength: V-Notched Charpy, J 90
40
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
72
Tensile Strength: Ultimate (UTS), MPa 490
900
Tensile Strength: Yield (Proof), MPa 220
670

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 990
430
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
41
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.6
Embodied Energy, MJ/kg 52
21
Embodied Water, L/kg 160
63

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
130
Resilience: Unit (Modulus of Resilience), kJ/m3 120
1210
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
32
Strength to Weight: Bending, points 18
27
Thermal Diffusivity, mm2/s 4.1
11
Thermal Shock Resistance, points 11
26

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.030
0.3 to 0.37
Chromium (Cr), % 18 to 20
1.0 to 1.3
Iron (Fe), % 61.7 to 71
96.1 to 97.7
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 2.0 to 2.5
0.15 to 0.25
Nickel (Ni), % 9.0 to 12
0
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035