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EN 1.8550 Steel vs. S82012 Stainless Steel

Both EN 1.8550 steel and S82012 stainless 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.8550 steel and the bottom bar is S82012 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
40
Fatigue Strength, MPa 470
480
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 600
550
Tensile Strength: Ultimate (UTS), MPa 1000
800
Tensile Strength: Yield (Proof), MPa 760
560

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 440
950
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
11
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.4
Embodied Energy, MJ/kg 23
35
Embodied Water, L/kg 67
140

Common Calculations

PREN (Pitting Resistance) 2.3
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
290
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
790
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 36
29
Strength to Weight: Bending, points 29
25
Thermal Diffusivity, mm2/s 11
3.9
Thermal Shock Resistance, points 29
23

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.3 to 0.37
0 to 0.050
Chromium (Cr), % 1.5 to 1.8
19 to 20.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 94.4 to 96.3
71.3 to 77.9
Manganese (Mn), % 0.4 to 0.7
2.0 to 4.0
Molybdenum (Mo), % 0.15 to 0.25
0.1 to 0.6
Nickel (Ni), % 0.85 to 1.2
0.8 to 1.5
Nitrogen (N), % 0
0.16 to 0.26
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.8
Sulfur (S), % 0 to 0.035
0 to 0.0050