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AISI 334 Stainless Steel vs. Ductile Cast Iron

Both AISI 334 stainless steel and ductile cast iron are iron alloys. They have 60% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AISI 334 stainless steel and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160 to 310
Elastic (Young's, Tensile) Modulus, GPa 200
170 to 180
Elongation at Break, % 34
2.1 to 20
Poisson's Ratio 0.28
0.28 to 0.31
Shear Modulus, GPa 77
64 to 70
Shear Strength, MPa 360
420 to 800
Tensile Strength: Ultimate (UTS), MPa 540
460 to 920
Tensile Strength: Yield (Proof), MPa 190
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 1000
290
Melting Completion (Liquidus), °C 1410
1160
Melting Onset (Solidus), °C 1370
1120
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 22
1.9
Density, g/cm3 7.9
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 4.1
1.5
Embodied Energy, MJ/kg 59
21
Embodied Water, L/kg 170
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 96
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
17 to 35
Strength to Weight: Bending, points 19
18 to 29
Thermal Shock Resistance, points 12
17 to 35

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.080
3.0 to 3.5
Chromium (Cr), % 18 to 20
0
Iron (Fe), % 55.7 to 62.7
93.7 to 95.5
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 19 to 21
0
Phosphorus (P), % 0 to 0.030
0 to 0.080
Silicon (Si), % 0 to 1.0
1.5 to 2.8
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
0