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EN 1.4938 Stainless Steel vs. ASTM A732 Cast Steel

Both EN 1.4938 stainless steel and ASTM A732 cast 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 EN 1.4938 stainless steel and the bottom bar is ASTM A732 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16 to 17
4.0 to 25
Fatigue Strength, MPa 390 to 520
230 to 750
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72 to 73
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
460 to 1470
Tensile Strength: Yield (Proof), MPa 640 to 870
310 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 270
250 to 260
Maximum Temperature: Mechanical, °C 750
400 to 430
Melting Completion (Liquidus), °C 1460
1440 to 1460
Melting Onset (Solidus), °C 1420
1400 to 1420
Specific Heat Capacity, J/kg-K 470
470 to 480
Thermal Conductivity, W/m-K 30
39 to 50
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.1 to 7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.2 to 8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.0 to 3.8
Density, g/cm3 7.8
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 3.3
1.4 to 1.7
Embodied Energy, MJ/kg 47
19 to 24
Embodied Water, L/kg 110
47 to 54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
45 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
260 to 4770
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 37
16 to 52
Strength to Weight: Bending, points 26 to 29
17 to 37
Thermal Diffusivity, mm2/s 8.1
10 to 14
Thermal Shock Resistance, points 30 to 35
14 to 43