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AISI 316L Stainless Steel vs. Ductile Cast Iron

Both AISI 316L stainless steel and ductile cast iron are iron alloys. They have 67% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 316L stainless steel and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 350
160 to 310
Elastic (Young's, Tensile) Modulus, GPa 200
170 to 180
Elongation at Break, % 9.0 to 50
2.1 to 20
Poisson's Ratio 0.28
0.28 to 0.31
Shear Modulus, GPa 78
64 to 70
Shear Strength, MPa 370 to 690
420 to 800
Tensile Strength: Ultimate (UTS), MPa 530 to 1160
460 to 920
Tensile Strength: Yield (Proof), MPa 190 to 870
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 870
290
Melting Completion (Liquidus), °C 1400
1160
Melting Onset (Solidus), °C 1380
1120
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 15
31 to 36
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.9
Density, g/cm3 7.9
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 3.9
1.5
Embodied Energy, MJ/kg 53
21
Embodied Water, L/kg 150
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 230
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 93 to 1880
280 to 1330
Stiffness to Weight: Axial, points 14
12 to 14
Stiffness to Weight: Bending, points 25
24 to 26
Strength to Weight: Axial, points 19 to 41
17 to 35
Strength to Weight: Bending, points 18 to 31
18 to 29
Thermal Diffusivity, mm2/s 4.1
8.9 to 10
Thermal Shock Resistance, points 12 to 25
17 to 35

Alloy Composition

Carbon (C), % 0 to 0.030
3.0 to 3.5
Chromium (Cr), % 16 to 18
0
Iron (Fe), % 62 to 72
93.7 to 95.5
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.080
Silicon (Si), % 0 to 0.75
1.5 to 2.8
Sulfur (S), % 0 to 0.030
0

Comparable Variants