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AISI 303 Stainless Steel vs. Austenitic Nodular Cast Iron

Both AISI 303 stainless steel and austenitic nodular cast iron are iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AISI 303 stainless steel and the bottom bar is austenitic nodular cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
140 to 240
Elastic (Young's, Tensile) Modulus, GPa 200
180 to 190
Elongation at Break, % 40 to 51
6.8 to 34
Poisson's Ratio 0.28
0.29 to 0.3
Shear Modulus, GPa 77
70 to 72
Tensile Strength: Ultimate (UTS), MPa 600 to 690
430 to 500
Tensile Strength: Yield (Proof), MPa 230 to 420
190 to 240

Thermal Properties

Latent Heat of Fusion, J/g 290
280 to 350
Melting Completion (Liquidus), °C 1450
1340 to 1400
Melting Onset (Solidus), °C 1400
1300 to 1360
Specific Heat Capacity, J/kg-K 480
470 to 490
Thermal Expansion, µm/m-K 17
13 to 14

Otherwise Unclassified Properties

Base Metal Price, % relative 15
16 to 25
Density, g/cm3 7.8
7.7 to 8.0
Embodied Carbon, kg CO2/kg material 3.0
3.5 to 4.9
Embodied Energy, MJ/kg 42
48 to 68
Embodied Water, L/kg 140
91 to 120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
24 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
98 to 160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24 to 25
Strength to Weight: Axial, points 21 to 25
15 to 18
Strength to Weight: Bending, points 20 to 22
16 to 18
Thermal Shock Resistance, points 13 to 15
12 to 15