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ASTM A217 Cast Steel vs. S31266 Stainless Steel

Both ASTM A217 cast steel and S31266 stainless steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A217 cast steel and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 21 to 27
40
Fatigue Strength, MPa 200 to 320
400
Poisson's Ratio 0.28 to 0.29
0.28
Reduction in Area, % 39 to 50
56
Shear Modulus, GPa 73 to 75
81
Tensile Strength: Ultimate (UTS), MPa 540 to 710
860
Tensile Strength: Yield (Proof), MPa 270 to 460
470

Thermal Properties

Latent Heat of Fusion, J/g 250 to 270
310
Maximum Temperature: Mechanical, °C 410 to 600
1100
Melting Completion (Liquidus), °C 1450 to 1460
1470
Melting Onset (Solidus), °C 1410 to 1420
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 26 to 50
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3 to 9.2
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4 to 11
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 7.0
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.5 to 2.1
6.5
Embodied Energy, MJ/kg 20 to 28
89
Embodied Water, L/kg 47 to 87
220

Common Calculations

PREN (Pitting Resistance) 2.5 to 13
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 130
290
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 570
540
Stiffness to Weight: Axial, points 13 to 14
14
Stiffness to Weight: Bending, points 24 to 25
24
Strength to Weight: Axial, points 19 to 25
29
Strength to Weight: Bending, points 19 to 23
24
Thermal Diffusivity, mm2/s 6.9 to 14
3.1
Thermal Shock Resistance, points 16 to 20
18