AWS E312 vs. Grade CW6M Nickel

AWS E312 belongs to the iron alloys classification, while grade CW6M nickel belongs to the nickel alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 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 E312 and the bottom bar is grade CW6M nickel.

AWS E312 (W31310) Weld Metal Grade CW6M (J30107) Cast Nickel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		220

Elongation at Break, %		25
Elongation at Break, %		29

Poisson's Ratio		0.27
Poisson's Ratio		0.29

Shear Modulus, GPa		80
Shear Modulus, GPa		84

Tensile Strength: Ultimate (UTS), MPa		740
Tensile Strength: Ultimate (UTS), MPa		560

Thermal Properties

Latent Heat of Fusion, J/g		310
Latent Heat of Fusion, J/g		330

Melting Completion (Liquidus), °C		1410
Melting Completion (Liquidus), °C		1530

Melting Onset (Solidus), °C		1360
Melting Onset (Solidus), °C		1470

Specific Heat Capacity, J/kg-K		480
Specific Heat Capacity, J/kg-K		430

Thermal Expansion, µm/m-K		15
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		20
Base Metal Price, % relative		65

Density, g/cm³		7.7
Density, g/cm³		8.8

Embodied Carbon, kg CO₂/kg material		3.6
Embodied Carbon, kg CO₂/kg material		13

Embodied Energy, MJ/kg		52
Embodied Energy, MJ/kg		170

Embodied Water, L/kg		200
Embodied Water, L/kg		300

Common Calculations

Stiffness to Weight: Axial, points		15
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		27
Strength to Weight: Axial, points		18

Strength to Weight: Bending, points		24
Strength to Weight: Bending, points		17

Thermal Shock Resistance, points		18
Thermal Shock Resistance, points		16

Alloy Composition

Carbon (C), %		0 to 0.15
Carbon (C), %		0 to 0.070

Chromium (Cr), %		28 to 32
Chromium (Cr), %		17 to 20

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

Iron (Fe), %		52.3 to 63.5
Iron (Fe), %		0 to 3.0

Manganese (Mn), %		0.5 to 2.5
Manganese (Mn), %		0 to 1.0

Molybdenum (Mo), %		0 to 0.75
Molybdenum (Mo), %		17 to 20

Nickel (Ni), %		8.0 to 10.5
Nickel (Ni), %		54.9 to 66

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

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

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