ASTM A387 Grade 11 Steel vs. AWS BAg-2

ASTM A387 grade 11 steel belongs to the iron alloys classification, while AWS BAg-2 belongs to the otherwise unclassified metals. 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 ASTM A387 grade 11 steel and the bottom bar is AWS BAg-2.

ASTM A387 Grade 11 (K11789) 1.25Cr-0.5Mo Steel AWS BAg-2 (P07350) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		82

Poisson's Ratio		0.29
Poisson's Ratio		0.32

Shear Modulus, GPa		73
Shear Modulus, GPa		31

Tensile Strength: Ultimate (UTS), MPa		500 to 600
Tensile Strength: Ultimate (UTS), MPa		180

Thermal Properties

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

Melting Completion (Liquidus), °C		1460
Melting Completion (Liquidus), °C		700

Melting Onset (Solidus), °C		1420
Melting Onset (Solidus), °C		610

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		310

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		22

Otherwise Unclassified Properties

Density, g/cm³		7.8
Density, g/cm³		8.9

Embodied Carbon, kg CO₂/kg material		1.6
Embodied Carbon, kg CO₂/kg material		35

Embodied Energy, MJ/kg		21
Embodied Energy, MJ/kg		550

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		5.1

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		16

Strength to Weight: Axial, points		18 to 21
Strength to Weight: Axial, points		5.6

Strength to Weight: Bending, points		18 to 20
Strength to Weight: Bending, points		7.9

Thermal Shock Resistance, points		15 to 18
Thermal Shock Resistance, points		7.0

Alloy Composition

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Cadmium (Cd), %		0
Cadmium (Cd), %		17 to 19

Carbon (C), %		0.050 to 0.17
Carbon (C), %		0

Chromium (Cr), %		1.0 to 1.5
Chromium (Cr), %		0

Copper (Cu), %		0
Copper (Cu), %		25 to 27

Iron (Fe), %		96.2 to 97.6
Iron (Fe), %		0

Manganese (Mn), %		0.4 to 0.65
Manganese (Mn), %		0

Molybdenum (Mo), %		0.45 to 0.65
Molybdenum (Mo), %		0

Phosphorus (P), %		0 to 0.025
Phosphorus (P), %		0

Silicon (Si), %		0.5 to 0.8
Silicon (Si), %		0

Silver (Ag), %		0
Silver (Ag), %		34 to 36

Sulfur (S), %		0 to 0.025
Sulfur (S), %		0

Zinc (Zn), %		0
Zinc (Zn), %		19 to 23

Residuals, %		0
Residuals, %		0 to 0.15