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N08332 Stainless Steel vs. S81921 Stainless Steel

Both N08332 stainless steel and S81921 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 66% of their average alloy composition in common. There are 33 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 N08332 stainless steel and the bottom bar is S81921 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
29
Fatigue Strength, MPa 170
370
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Shear Strength, MPa 350
460
Tensile Strength: Ultimate (UTS), MPa 520
710
Tensile Strength: Yield (Proof), MPa 210
500

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 1050
990
Melting Completion (Liquidus), °C 1390
1430
Melting Onset (Solidus), °C 1340
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 32
14
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.4
2.9
Embodied Energy, MJ/kg 77
41
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 19
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
180
Resilience: Unit (Modulus of Resilience), kJ/m3 110
630
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
25
Strength to Weight: Bending, points 18
23
Thermal Diffusivity, mm2/s 3.1
4.0
Thermal Shock Resistance, points 12
20

Alloy Composition

Carbon (C), % 0.050 to 0.1
0 to 0.030
Chromium (Cr), % 17 to 20
19 to 22
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 38.3 to 48.2
66.7 to 75.9
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 34 to 37
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.75 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tin (Sn), % 0 to 0.025
0