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ASTM A209 Steel vs. AWS ER90S-B9

Both ASTM A209 steel and AWS ER90S-B9 are iron alloys. There are 27 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 ASTM A209 steel and the bottom bar is AWS ER90S-B9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 34
18
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 420 to 460
690
Tensile Strength: Yield (Proof), MPa 220 to 250
470

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420 to 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
25
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
7.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.6
Embodied Energy, MJ/kg 20
37
Embodied Water, L/kg 47
91

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 170
570
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 16
25
Strength to Weight: Bending, points 16 to 17
22
Thermal Diffusivity, mm2/s 13
6.9
Thermal Shock Resistance, points 12 to 14
19