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AWS E16-8-2 vs. AWS E307

Both AWS E16-8-2 and AWS E307 are iron alloys. Both are furnished in the as-welded condition. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is AWS E16-8-2 and the bottom bar is AWS E307.

AWS E16-8-2 (W36810) Weld Metal AWS E307 (W30710) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		40
Elongation at Break, %		34

Poisson's Ratio		0.28
Poisson's Ratio		0.28

Shear Modulus, GPa		77
Shear Modulus, GPa		78

Tensile Strength: Ultimate (UTS), MPa		620
Tensile Strength: Ultimate (UTS), MPa		660

Thermal Properties

Latent Heat of Fusion, J/g		280
Latent Heat of Fusion, J/g		290

Melting Completion (Liquidus), °C		1440
Melting Completion (Liquidus), °C		1420

Melting Onset (Solidus), °C		1400
Melting Onset (Solidus), °C		1370

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		480

Thermal Conductivity, W/m-K		16
Thermal Conductivity, W/m-K		15

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		2.4
Electrical Conductivity: Equal Volume, % IACS		2.1

Electrical Conductivity: Equal Weight (Specific), % IACS		2.7
Electrical Conductivity: Equal Weight (Specific), % IACS		2.4

Otherwise Unclassified Properties

Base Metal Price, % relative		15
Base Metal Price, % relative		17

Density, g/cm³		7.9
Density, g/cm³		7.8

Embodied Carbon, kg CO₂/kg material		3.2
Embodied Carbon, kg CO₂/kg material		3.5

Embodied Energy, MJ/kg		45
Embodied Energy, MJ/kg		49

Embodied Water, L/kg		140
Embodied Water, L/kg		160

Common Calculations

PREN (Pitting Resistance)		20
PREN (Pitting Resistance)		23

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		14

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

Strength to Weight: Axial, points		22
Strength to Weight: Axial, points		24

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		22

Thermal Diffusivity, mm²/s		4.2
Thermal Diffusivity, mm²/s		4.1

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		17

Alloy Composition

Carbon (C), %		0 to 0.1
Carbon (C), %		0.040 to 0.14

Chromium (Cr), %		14.5 to 16.5
Chromium (Cr), %		18 to 21.5

Copper (Cu), %		0 to 0.75
Copper (Cu), %		0 to 0.75

Iron (Fe), %		68 to 76.5
Iron (Fe), %		59.6 to 69.2

Manganese (Mn), %		0.5 to 2.5
Manganese (Mn), %		3.3 to 4.8

Molybdenum (Mo), %		1.0 to 2.0
Molybdenum (Mo), %		0.5 to 1.5

Nickel (Ni), %		7.5 to 9.5
Nickel (Ni), %		9.0 to 10.7

Phosphorus (P), %		0 to 0.030
Phosphorus (P), %		0 to 0.040

Silicon (Si), %		0 to 0.6
Silicon (Si), %		0 to 1.0

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