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ASTM A27 Cast Steel vs. AWS ER90S-D2

Both ASTM A27 cast steel and AWS ER90S-D2 are iron alloys. There are 27 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 A27 cast steel and the bottom bar is AWS ER90S-D2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25 to 27
19
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 460 to 550
710
Tensile Strength: Yield (Proof), MPa 230 to 310
600

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
47
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 18
21
Embodied Water, L/kg 45 to 46
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
980
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 20
25
Strength to Weight: Bending, points 17 to 19
23
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 15 to 18
21