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EN 1.4446 Stainless Steel vs. EN 1.8505 Steel

Both EN 1.4446 stainless steel and EN 1.8505 steel are iron alloys. They have 66% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4446 stainless steel and the bottom bar is EN 1.8505 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
320
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
13
Fatigue Strength, MPa 160
540
Impact Strength: V-Notched Charpy, J 56
28
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 490
1050
Tensile Strength: Yield (Proof), MPa 240
860

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 980
440
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
39
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
2.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.5
1.6
Embodied Energy, MJ/kg 60
22
Embodied Water, L/kg 160
65

Common Calculations

PREN (Pitting Resistance) 34
2.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1950
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
37
Strength to Weight: Bending, points 17
30
Thermal Diffusivity, mm2/s 3.6
11
Thermal Shock Resistance, points 11
31

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.030
0.28 to 0.35
Chromium (Cr), % 16.5 to 18.5
1.5 to 1.8
Iron (Fe), % 59.7 to 66.9
95.4 to 97.1
Manganese (Mn), % 0 to 1.5
0.4 to 0.7
Molybdenum (Mo), % 4.0 to 4.5
0.2 to 0.4
Nickel (Ni), % 12.5 to 14.5
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035