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ASTM A732 Cast Steel vs. AISI 301 Stainless Steel

Both ASTM A732 cast steel and AISI 301 stainless steel are iron alloys. There are 30 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 AISI 301 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 440
190 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 4.0 to 25
7.4 to 46
Fatigue Strength, MPa 230 to 750
210 to 600
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72 to 73
77
Tensile Strength: Ultimate (UTS), MPa 460 to 1470
590 to 1460
Tensile Strength: Yield (Proof), MPa 310 to 1340
230 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
280
Maximum Temperature: Mechanical, °C 400 to 430
840
Melting Completion (Liquidus), °C 1440 to 1460
1420
Melting Onset (Solidus), °C 1400 to 1420
1400
Specific Heat Capacity, J/kg-K 470 to 480
480
Thermal Conductivity, W/m-K 39 to 50
16
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0 to 3.8
13
Density, g/cm3 7.8 to 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4 to 1.7
2.7
Embodied Energy, MJ/kg 19 to 24
39
Embodied Water, L/kg 47 to 54
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 130
99 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 4770
130 to 2970
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 52
21 to 52
Strength to Weight: Bending, points 17 to 37
20 to 37
Thermal Diffusivity, mm2/s 10 to 14
4.2
Thermal Shock Resistance, points 14 to 43
12 to 31