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AWS BAu-5 vs. ASTM A209 Steel

AWS BAu-5 belongs to the otherwise unclassified metals classification, while ASTM A209 steel belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

For each property being compared, the top bar is AWS BAu-5 and the bottom bar is ASTM A209 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
190
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 50
73
Tensile Strength: Ultimate (UTS), MPa 210
420 to 460

Thermal Properties

Latent Heat of Fusion, J/g 180
250
Melting Completion (Liquidus), °C 1170
1470
Melting Onset (Solidus), °C 1140
1420 to 1430
Specific Heat Capacity, J/kg-K 280
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Density, g/cm3 13
7.9

Common Calculations

Stiffness to Weight: Axial, points 5.8
13
Stiffness to Weight: Bending, points 13
24
Strength to Weight: Axial, points 4.5
15 to 16
Strength to Weight: Bending, points 6.0
16 to 17
Thermal Shock Resistance, points 9.0
12 to 14