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EN 1.4404 Stainless Steel vs. S82031 Stainless Steel

Both EN 1.4404 stainless steel and S82031 stainless steel are iron alloys. They have a moderately high 90% 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 1.4404 stainless steel and the bottom bar is S82031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 43
39
Fatigue Strength, MPa 220 to 320
490
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 420 to 550
540
Tensile Strength: Ultimate (UTS), MPa 600 to 900
780
Tensile Strength: Yield (Proof), MPa 240 to 570
570

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 950
980
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.8
2.8
Embodied Energy, MJ/kg 52
39
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 26
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 210
280
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
28
Strength to Weight: Bending, points 20 to 26
24
Thermal Diffusivity, mm2/s 4.0
3.9
Thermal Shock Resistance, points 13 to 20
22

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 16.5 to 18.5
19 to 22
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 62.8 to 71.5
68 to 78.3
Manganese (Mn), % 0 to 2.0
0 to 2.5
Molybdenum (Mo), % 2.0 to 2.5
0.6 to 1.4
Nickel (Ni), % 10 to 13
2.0 to 4.0
Nitrogen (N), % 0 to 0.1
0.14 to 0.24
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.0050