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N08800 Stainless Steel vs. S31254 Stainless Steel

Both N08800 stainless steel and S31254 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is N08800 stainless steel and the bottom bar is S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.5 to 34
40
Fatigue Strength, MPa 150 to 390
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Shear Strength, MPa 340 to 580
490
Tensile Strength: Ultimate (UTS), MPa 500 to 1000
720
Tensile Strength: Yield (Proof), MPa 190 to 830
330

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 490
420
Maximum Temperature: Mechanical, °C 1100
1090
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 12
14
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 30
28
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 5.3
5.5
Embodied Energy, MJ/kg 76
74
Embodied Water, L/kg 200
190

Common Calculations

PREN (Pitting Resistance) 21
44
Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 160
240
Resilience: Unit (Modulus of Resilience), kJ/m3 96 to 1740
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 35
25
Strength to Weight: Bending, points 18 to 28
22
Thermal Diffusivity, mm2/s 3.0
3.8
Thermal Shock Resistance, points 13 to 25
15

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.1
0 to 0.020
Chromium (Cr), % 19 to 23
19.5 to 20.5
Copper (Cu), % 0 to 0.75
0.5 to 1.0
Iron (Fe), % 39.5 to 50.7
51.4 to 56.3
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 6.5
Nickel (Ni), % 30 to 35
17.5 to 18.5
Nitrogen (N), % 0
0.18 to 0.22
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0.15 to 0.6
0