AWS BAg-37 vs. SAE-AISI M3 Class 2 Steel

AWS BAg-37 belongs to the otherwise unclassified metals classification, while SAE-AISI M3 class 2 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-37 and the bottom bar is SAE-AISI M3 class 2 steel.

AWS BAg-37 (P07253) Filler Metal SAE-AISI M3 Class 2 (T11323) Molybdenum High-Speed Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		94
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.32
Poisson's Ratio		0.29

Shear Modulus, GPa		36
Shear Modulus, GPa		77

Tensile Strength: Ultimate (UTS), MPa		180
Tensile Strength: Ultimate (UTS), MPa		770 to 2210

Thermal Properties

Latent Heat of Fusion, J/g		150
Latent Heat of Fusion, J/g		260

Melting Completion (Liquidus), °C		780
Melting Completion (Liquidus), °C		1620

Melting Onset (Solidus), °C		690
Melting Onset (Solidus), °C		1570

Specific Heat Capacity, J/kg-K		350
Specific Heat Capacity, J/kg-K		440

Thermal Expansion, µm/m-K		21
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		8.5
Density, g/cm³		8.3

Embodied Carbon, kg CO₂/kg material		26
Embodied Carbon, kg CO₂/kg material		12

Embodied Energy, MJ/kg		410
Embodied Energy, MJ/kg		180

Common Calculations

Stiffness to Weight: Axial, points		6.1
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		5.9
Strength to Weight: Axial, points		26 to 74

Strength to Weight: Bending, points		8.3
Strength to Weight: Bending, points		22 to 45

Thermal Shock Resistance, points		6.6
Thermal Shock Resistance, points		24 to 69

Alloy Composition

Carbon (C), %		0
Carbon (C), %		1.2 to 1.3

Chromium (Cr), %		0
Chromium (Cr), %		3.8 to 4.5

Copper (Cu), %		39 to 41
Copper (Cu), %		0 to 0.25

Iron (Fe), %		0
Iron (Fe), %		75.8 to 82.3

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

Molybdenum (Mo), %		0
Molybdenum (Mo), %		4.8 to 6.5

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), %		24 to 26
Silver (Ag), %		0

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

Tin (Sn), %		1.5 to 2.5
Tin (Sn), %		0

Tungsten (W), %		0
Tungsten (W), %		5.0 to 6.8

Vanadium (V), %		0
Vanadium (V), %		2.8 to 3.8

Zinc (Zn), %		31 to 35
Zinc (Zn), %		0

Residuals, %		0 to 0.15
Residuals, %		0