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ASTM A216 Cast Steel vs. ASTM A321 Carbon Steel

Both ASTM A216 cast steel and ASTM A321 carbon steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A216 cast steel and the bottom bar is ASTM A321 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25 to 27
21
Fatigue Strength, MPa 170 to 230
270
Poisson's Ratio 0.29
0.29
Reduction in Area, % 39
39
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 500 to 570
670
Tensile Strength: Yield (Proof), MPa 230 to 310
390

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1450 to 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49 to 52
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 45
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 250
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 20
24
Strength to Weight: Bending, points 18 to 20
22
Thermal Diffusivity, mm2/s 13 to 14
14
Thermal Shock Resistance, points 16 to 18
21