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ASTM A27 Cast Steel vs. AWS ERTi-12

ASTM A27 cast steel belongs to the iron alloys classification, while AWS ERTi-12 belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A27 cast steel and the bottom bar is AWS ERTi-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 25 to 27
12
Fatigue Strength, MPa 170 to 230
200
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
41
Tensile Strength: Ultimate (UTS), MPa 460 to 550
480
Tensile Strength: Yield (Proof), MPa 230 to 310
340

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 400
320
Melting Completion (Liquidus), °C 1460
1670
Melting Onset (Solidus), °C 1420
1620
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 52
21
Thermal Expansion, µm/m-K 12
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.4
31
Embodied Energy, MJ/kg 18
510
Embodied Water, L/kg 45 to 46
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
52
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 16 to 20
30
Strength to Weight: Bending, points 17 to 19
30
Thermal Diffusivity, mm2/s 14
8.7
Thermal Shock Resistance, points 15 to 18
37