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AISI 303 Stainless Steel vs. N08031 Stainless Steel

Both AISI 303 stainless steel and N08031 stainless steel are iron alloys. 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 (4, in this case) are not shown.

For each property being compared, the top bar is AISI 303 stainless steel and the bottom bar is N08031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40 to 51
45
Fatigue Strength, MPa 230 to 360
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Shear Strength, MPa 430 to 470
510
Tensile Strength: Ultimate (UTS), MPa 600 to 690
730
Tensile Strength: Yield (Proof), MPa 230 to 420
310

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 410
460
Maximum Temperature: Mechanical, °C 930
1100
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 17
18

Otherwise Unclassified Properties

Base Metal Price, % relative 15
39
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.0
7.1
Embodied Energy, MJ/kg 42
96
Embodied Water, L/kg 140
240

Common Calculations

PREN (Pitting Resistance) 18
52
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
270
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 25
25
Strength to Weight: Bending, points 20 to 22
22
Thermal Diffusivity, mm2/s 4.4
3.1
Thermal Shock Resistance, points 13 to 15
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.015
Chromium (Cr), % 17 to 19
26 to 28
Copper (Cu), % 0
1.0 to 1.4
Iron (Fe), % 67.3 to 74.9
29 to 36.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 8.0 to 10
30 to 32
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.2
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0.15 to 0.35
0 to 0.010