AWS BAg-3 vs. SAE-AISI A7 Steel

AWS BAg-3 belongs to the otherwise unclassified metals classification, while SAE-AISI A7 steel belongs to the iron alloys. There are 17 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 AWS BAg-3 and the bottom bar is SAE-AISI A7 steel.

AWS BAg-3 (P07501) Filler Metal SAE-AISI A7 (T30107) Air-Hardening Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		80
Elastic (Young's, Tensile) Modulus, GPa		190

Poisson's Ratio		0.33
Poisson's Ratio		0.29

Shear Modulus, GPa		30
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		170
Tensile Strength: Ultimate (UTS), MPa		800 to 2150

Thermal Properties

Latent Heat of Fusion, J/g		120
Latent Heat of Fusion, J/g		260

Melting Completion (Liquidus), °C		690
Melting Completion (Liquidus), °C		1470

Melting Onset (Solidus), °C		630
Melting Onset (Solidus), °C		1430

Specific Heat Capacity, J/kg-K		290
Specific Heat Capacity, J/kg-K		470

Thermal Expansion, µm/m-K		22
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		9.3
Density, g/cm³		7.7

Embodied Carbon, kg CO₂/kg material		49
Embodied Carbon, kg CO₂/kg material		13

Embodied Energy, MJ/kg		770
Embodied Energy, MJ/kg		200

Common Calculations

Stiffness to Weight: Axial, points		4.8
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		15
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		5.1
Strength to Weight: Axial, points		29 to 77

Strength to Weight: Bending, points		7.3
Strength to Weight: Bending, points		25 to 48

Thermal Shock Resistance, points		6.9
Thermal Shock Resistance, points		27 to 72

Alloy Composition

Cadmium (Cd), %		15 to 17
Cadmium (Cd), %		0

Carbon (C), %		0
Carbon (C), %		2.0 to 2.9

Chromium (Cr), %		0
Chromium (Cr), %		5.0 to 5.8

Copper (Cu), %		14.5 to 16.5
Copper (Cu), %		0 to 0.25

Iron (Fe), %		0
Iron (Fe), %		81.4 to 87.7

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.8

Molybdenum (Mo), %		0
Molybdenum (Mo), %		0.9 to 1.4

Nickel (Ni), %		2.5 to 3.5
Nickel (Ni), %		0 to 0.3

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0
Silicon (Si), %		0 to 0.5

Silver (Ag), %		49 to 51
Silver (Ag), %		0

Sulfur (S), %		0
Sulfur (S), %		0 to 0.030

Tungsten (W), %		0
Tungsten (W), %		0.5 to 1.5

Vanadium (V), %		0
Vanadium (V), %		3.9 to 5.2

Zinc (Zn), %		13.5 to 17.5
Zinc (Zn), %		0

Residuals, %		0 to 0.15
Residuals, %		0