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EN 1.8505 Steel vs. S82122 Stainless Steel

Both EN 1.8505 steel and S82122 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 32 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 1.8505 steel and the bottom bar is S82122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 320
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13
34
Fatigue Strength, MPa 540
360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 630
460
Tensile Strength: Ultimate (UTS), MPa 1050
680
Tensile Strength: Yield (Proof), MPa 860
450

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 440
990
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.6
2.6
Embodied Energy, MJ/kg 22
37
Embodied Water, L/kg 65
150

Common Calculations

PREN (Pitting Resistance) 2.6
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
210
Resilience: Unit (Modulus of Resilience), kJ/m3 1950
510
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 37
25
Strength to Weight: Bending, points 30
22
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 31
19

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.28 to 0.35
0 to 0.030
Chromium (Cr), % 1.5 to 1.8
20.5 to 21.5
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 95.4 to 97.1
68.9 to 75.4
Manganese (Mn), % 0.4 to 0.7
2.0 to 4.0
Molybdenum (Mo), % 0.2 to 0.4
0 to 0.6
Nickel (Ni), % 0
1.5 to 2.5
Nitrogen (N), % 0
0.15 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.020