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ASTM A27 Cast Steel vs. S31727 Stainless Steel

Both ASTM A27 cast steel and S31727 stainless steel are iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM A27 cast steel and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25 to 27
40
Fatigue Strength, MPa 170 to 230
240
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34 to 40
56
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 460 to 550
630
Tensile Strength: Yield (Proof), MPa 230 to 310
270

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1010
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
4.7
Embodied Energy, MJ/kg 18
64
Embodied Water, L/kg 45 to 46
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
200
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 20
22
Strength to Weight: Bending, points 17 to 19
20
Thermal Shock Resistance, points 15 to 18
14