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S32550 Stainless Steel vs. EN 1.8821 Steel

Both S32550 stainless steel and EN 1.8821 steel are iron alloys. They have 63% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S32550 stainless steel and the bottom bar is EN 1.8821 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 21
25
Fatigue Strength, MPa 400
280
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 540
340
Tensile Strength: Ultimate (UTS), MPa 860
530
Tensile Strength: Yield (Proof), MPa 620
390

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.6
Embodied Energy, MJ/kg 53
21
Embodied Water, L/kg 180
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
120
Resilience: Unit (Modulus of Resilience), kJ/m3 940
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31
19
Strength to Weight: Bending, points 26
19
Thermal Diffusivity, mm2/s 4.4
13
Thermal Shock Resistance, points 23
16

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.030
Carbon (C), % 0 to 0.040
0 to 0.14
Chromium (Cr), % 24 to 27
0
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 57.2 to 67
96.8 to 99.98
Manganese (Mn), % 0 to 1.5
0 to 1.6
Molybdenum (Mo), % 2.9 to 3.9
0 to 0.2
Nickel (Ni), % 4.5 to 6.5
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0.1 to 0.25
0 to 0.015
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.1