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N08031 Stainless Steel vs. S44625 Stainless Steel

Both N08031 stainless steel and S44625 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 61% of their average alloy composition in common. There are 30 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 N08031 stainless steel and the bottom bar is S44625 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
22
Fatigue Strength, MPa 290
240
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 81
80
Shear Strength, MPa 510
370
Tensile Strength: Ultimate (UTS), MPa 730
590
Tensile Strength: Yield (Proof), MPa 310
360

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 460
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 18
11

Otherwise Unclassified Properties

Base Metal Price, % relative 39
14
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 7.1
2.8
Embodied Energy, MJ/kg 96
39
Embodied Water, L/kg 240
160

Common Calculations

PREN (Pitting Resistance) 52
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
110
Resilience: Unit (Modulus of Resilience), kJ/m3 230
310
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 3.1
4.6
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.010
Chromium (Cr), % 26 to 28
25 to 27.5
Copper (Cu), % 1.0 to 1.4
0 to 0.2
Iron (Fe), % 29 to 36.9
69.4 to 74.3
Manganese (Mn), % 0 to 2.0
0 to 0.4
Molybdenum (Mo), % 6.0 to 7.0
0.75 to 1.5
Nickel (Ni), % 30 to 32
0 to 0.5
Nitrogen (N), % 0.15 to 0.25
0 to 0.015
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 0.3
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.020