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N08031 Stainless Steel vs. S32050 Stainless Steel

Both N08031 stainless steel and S32050 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 85% of their average alloy composition in common. There are 30 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 N08031 stainless steel and the bottom bar is S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 45
46
Fatigue Strength, MPa 290
340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
81
Shear Strength, MPa 510
540
Tensile Strength: Ultimate (UTS), MPa 730
770
Tensile Strength: Yield (Proof), MPa 310
370

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 460
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 18
16

Otherwise Unclassified Properties

Base Metal Price, % relative 39
31
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 7.1
6.0
Embodied Energy, MJ/kg 96
81
Embodied Water, L/kg 240
210

Common Calculations

PREN (Pitting Resistance) 52
48
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
290
Resilience: Unit (Modulus of Resilience), kJ/m3 230
330
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
27
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 3.1
3.3
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.030
Chromium (Cr), % 26 to 28
22 to 24
Copper (Cu), % 1.0 to 1.4
0 to 0.4
Iron (Fe), % 29 to 36.9
43.1 to 51.8
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 6.0 to 7.0
6.0 to 6.6
Nickel (Ni), % 30 to 32
20 to 23
Nitrogen (N), % 0.15 to 0.25
0.21 to 0.32
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.020