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AWS BAg-2a vs. ASTM A387 Grade 5 Steel

AWS BAg-2a belongs to the otherwise unclassified metals classification, while ASTM A387 grade 5 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-2a and the bottom bar is ASTM A387 grade 5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 31
74
Tensile Strength: Ultimate (UTS), MPa 170
500 to 600

Thermal Properties

Latent Heat of Fusion, J/g 130
260
Melting Completion (Liquidus), °C 710
1460
Melting Onset (Solidus), °C 610
1420
Specific Heat Capacity, J/kg-K 310
470
Thermal Expansion, µm/m-K 23
13

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 30
1.7
Embodied Energy, MJ/kg 470
23

Common Calculations

Stiffness to Weight: Axial, points 5.2
14
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 5.4
18 to 21
Strength to Weight: Bending, points 7.8
18 to 20
Thermal Shock Resistance, points 6.5
14 to 17

Alloy Composition

Cadmium (Cd), % 19 to 21
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
4.0 to 6.0
Copper (Cu), % 26 to 28
0
Iron (Fe), % 0
92.1 to 95.3
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.45 to 0.65
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 29 to 31
0
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 21 to 25
0
Residuals, % 0 to 0.15
0