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ASTM A216 Cast Steel vs. S46800 Stainless Steel

Both ASTM A216 cast steel and S46800 stainless steel are iron alloys. There are 29 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 ASTM A216 cast steel and the bottom bar is S46800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25 to 27
25
Fatigue Strength, MPa 170 to 230
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 500 to 570
470
Tensile Strength: Yield (Proof), MPa 230 to 310
230

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
920
Melting Completion (Liquidus), °C 1450 to 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49 to 52
23
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.2
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.6
Embodied Energy, MJ/kg 18
37
Embodied Water, L/kg 45
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
98
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 250
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 20
17
Strength to Weight: Bending, points 18 to 20
18
Thermal Diffusivity, mm2/s 13 to 14
6.1
Thermal Shock Resistance, points 16 to 18
16