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EN 1.4958 Stainless Steel vs. S82031 Stainless Steel

Both EN 1.4958 stainless steel and S82031 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4958 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, % 40
39
Fatigue Strength, MPa 170
490
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 430
540
Tensile Strength: Ultimate (UTS), MPa 630
780
Tensile Strength: Yield (Proof), MPa 190
570

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 500
430
Maximum Temperature: Mechanical, °C 1090
980
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 30
13
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.3
2.8
Embodied Energy, MJ/kg 75
39
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 21
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
280
Resilience: Unit (Modulus of Resilience), kJ/m3 95
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
28
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 3.2
3.9
Thermal Shock Resistance, points 15
22

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0
Carbon (C), % 0.030 to 0.080
0 to 0.050
Chromium (Cr), % 19 to 22
19 to 22
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0 to 1.0
Iron (Fe), % 41.1 to 50.6
68 to 78.3
Manganese (Mn), % 0 to 1.5
0 to 2.5
Molybdenum (Mo), % 0
0.6 to 1.4
Nickel (Ni), % 30 to 32.5
2.0 to 4.0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0.14 to 0.24
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.0050
Titanium (Ti), % 0.2 to 0.5
0