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EN 1.0625 Steel vs. S82121 Stainless Steel

Both EN 1.0625 steel and S82121 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.0625 steel and the bottom bar is S82121 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
28
Fatigue Strength, MPa 230
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 560
730
Tensile Strength: Yield (Proof), MPa 320
510

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1020
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 47
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
40
Embodied Water, L/kg 48
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 270
660
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
26
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 18
20

Alloy Composition

Carbon (C), % 0.18 to 0.25
0 to 0.035
Chromium (Cr), % 0 to 0.3
21 to 23
Copper (Cu), % 0 to 0.3
0.2 to 1.2
Iron (Fe), % 96.6 to 99.02
66.7 to 75.4
Manganese (Mn), % 0.8 to 1.4
1.0 to 2.5
Molybdenum (Mo), % 0 to 0.12
0.3 to 1.3
Nickel (Ni), % 0 to 0.4
2.0 to 4.0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.010
Vanadium (V), % 0 to 0.030
0