AWS BAg-2a vs. SAE-AISI M4 Steel

AWS BAg-2a belongs to the otherwise unclassified metals classification, while SAE-AISI M4 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-2a and the bottom bar is SAE-AISI M4 steel.

AWS BAg-2a (P07300) Filler Metal SAE-AISI M4 (T11304) Molybdenum High-Speed Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		83
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.32
Poisson's Ratio		0.29

Shear Modulus, GPa		31
Shear Modulus, GPa		76

Tensile Strength: Ultimate (UTS), MPa		170
Tensile Strength: Ultimate (UTS), MPa		770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g		130
Latent Heat of Fusion, J/g		260

Melting Completion (Liquidus), °C		710
Melting Completion (Liquidus), °C		1610

Melting Onset (Solidus), °C		610
Melting Onset (Solidus), °C		1560

Specific Heat Capacity, J/kg-K		310
Specific Heat Capacity, J/kg-K		440

Thermal Expansion, µm/m-K		23
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		8.8
Density, g/cm³		8.3

Embodied Carbon, kg CO₂/kg material		30
Embodied Carbon, kg CO₂/kg material		14

Embodied Energy, MJ/kg		470
Embodied Energy, MJ/kg		210

Common Calculations

Stiffness to Weight: Axial, points		5.2
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		17
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		5.4
Strength to Weight: Axial, points		26 to 72

Strength to Weight: Bending, points		7.8
Strength to Weight: Bending, points		23 to 45

Thermal Shock Resistance, points		6.5
Thermal Shock Resistance, points		24 to 68

Alloy Composition

Cadmium (Cd), %		19 to 21
Cadmium (Cd), %		0

Carbon (C), %		0
Carbon (C), %		1.3 to 1.4

Chromium (Cr), %		0
Chromium (Cr), %		3.8 to 4.8

Copper (Cu), %		26 to 28
Copper (Cu), %		0 to 0.25

Iron (Fe), %		0
Iron (Fe), %		75.9 to 81.4

Manganese (Mn), %		0
Manganese (Mn), %		0.15 to 0.4

Molybdenum (Mo), %		0
Molybdenum (Mo), %		4.3 to 5.5

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

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

Silicon (Si), %		0
Silicon (Si), %		0.2 to 0.45

Silver (Ag), %		29 to 31
Silver (Ag), %		0

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

Tungsten (W), %		0
Tungsten (W), %		5.3 to 6.5

Vanadium (V), %		0
Vanadium (V), %		3.8 to 4.5

Zinc (Zn), %		21 to 25
Zinc (Zn), %		0

Residuals, %		0 to 0.15
Residuals, %		0