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S17400 Stainless Steel vs. ASTM A216 Cast Steel

Both S17400 stainless steel and ASTM A216 cast steel are iron alloys. There are 30 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 S17400 stainless steel and the bottom bar is ASTM A216 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
25 to 27
Fatigue Strength, MPa 380 to 670
170 to 230
Poisson's Ratio 0.28
0.29
Reduction in Area, % 40 to 62
39
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
500 to 570
Tensile Strength: Yield (Proof), MPa 580 to 1250
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 850
400
Melting Completion (Liquidus), °C 1440
1450 to 1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
49 to 52
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.1 to 7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.2 to 8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 39
18
Embodied Water, L/kg 130
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
140 to 250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 49
18 to 20
Strength to Weight: Bending, points 27 to 35
18 to 20
Thermal Diffusivity, mm2/s 4.5
13 to 14
Thermal Shock Resistance, points 30 to 46
16 to 18