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AISI 446 Stainless Steel vs. ASTM A216 Cast Steel

Both AISI 446 stainless steel and ASTM A216 cast steel are iron alloys. 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 446 stainless steel and the bottom bar is ASTM A216 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
25 to 27
Fatigue Strength, MPa 200
170 to 230
Poisson's Ratio 0.27
0.29
Reduction in Area, % 50
39
Shear Modulus, GPa 79
72
Tensile Strength: Ultimate (UTS), MPa 570
500 to 570
Tensile Strength: Yield (Proof), MPa 300
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1180
400
Melting Completion (Liquidus), °C 1510
1450 to 1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
49 to 52
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.1 to 7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.2 to 8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.4
Embodied Energy, MJ/kg 35
18
Embodied Water, L/kg 150
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 230
140 to 250
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 21
18 to 20
Strength to Weight: Bending, points 20
18 to 20
Thermal Diffusivity, mm2/s 4.6
13 to 14
Thermal Shock Resistance, points 19
16 to 18