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S82121 Stainless Steel vs. EN 1.4024 Stainless Steel

Both S82121 stainless steel and EN 1.4024 stainless steel are iron alloys. They have 85% 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 S82121 stainless steel and the bottom bar is EN 1.4024 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
15 to 22
Fatigue Strength, MPa 370
220 to 300
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
76
Shear Strength, MPa 470
370 to 460
Tensile Strength: Ultimate (UTS), MPa 730
590 to 750
Tensile Strength: Yield (Proof), MPa 510
330 to 510

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 1020
760
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
7.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.8
1.9
Embodied Energy, MJ/kg 40
27
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 28
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
98 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 660
280 to 660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
21 to 27
Strength to Weight: Bending, points 23
20 to 24
Thermal Diffusivity, mm2/s 4.0
8.1
Thermal Shock Resistance, points 20
21 to 26

Alloy Composition

Carbon (C), % 0 to 0.035
0.12 to 0.17
Chromium (Cr), % 21 to 23
12 to 14
Copper (Cu), % 0.2 to 1.2
0
Iron (Fe), % 66.7 to 75.4
83.8 to 87.9
Manganese (Mn), % 1.0 to 2.5
0 to 1.0
Molybdenum (Mo), % 0.3 to 1.3
0
Nickel (Ni), % 2.0 to 4.0
0
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015