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ASTM A732 Cast Steel vs. N08020 Stainless Steel

Both ASTM A732 cast steel and N08020 stainless steel are iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A732 cast steel and the bottom bar is N08020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 4.0 to 25
15 to 34
Fatigue Strength, MPa 230 to 750
210 to 240
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72 to 73
77
Tensile Strength: Ultimate (UTS), MPa 460 to 1470
610 to 620
Tensile Strength: Yield (Proof), MPa 310 to 1340
270 to 420

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
300
Maximum Temperature: Mechanical, °C 400 to 430
1100
Melting Completion (Liquidus), °C 1440 to 1460
1410
Melting Onset (Solidus), °C 1400 to 1420
1360
Specific Heat Capacity, J/kg-K 470 to 480
460
Thermal Conductivity, W/m-K 39 to 50
12
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.7
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.9
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0 to 3.8
38
Density, g/cm3 7.8 to 7.9
8.2
Embodied Carbon, kg CO2/kg material 1.4 to 1.7
6.6
Embodied Energy, MJ/kg 19 to 24
92
Embodied Water, L/kg 47 to 54
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 130
83 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 4770
180 to 440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 52
21
Strength to Weight: Bending, points 17 to 37
20
Thermal Diffusivity, mm2/s 10 to 14
3.2
Thermal Shock Resistance, points 14 to 43
15