AWS E320 vs. AWS E630

Both AWS E320 and AWS E630 are iron alloys. They have 64% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS E320 and the bottom bar is AWS E630.

AWS E320 (W88021) Weld Metal AWS E630 (W37410) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		190

Elongation at Break, %		34
Elongation at Break, %		8.0

Poisson's Ratio		0.28
Poisson's Ratio		0.28

Shear Modulus, GPa		77
Shear Modulus, GPa		76

Tensile Strength: Ultimate (UTS), MPa		620
Tensile Strength: Ultimate (UTS), MPa		1040

Thermal Properties

Latent Heat of Fusion, J/g		300
Latent Heat of Fusion, J/g		280

Melting Completion (Liquidus), °C		1410
Melting Completion (Liquidus), °C		1430

Melting Onset (Solidus), °C		1360
Melting Onset (Solidus), °C		1380

Specific Heat Capacity, J/kg-K		460
Specific Heat Capacity, J/kg-K		470

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

Otherwise Unclassified Properties

Base Metal Price, % relative		38
Base Metal Price, % relative		14

Density, g/cm³		8.2
Density, g/cm³		7.8

Embodied Carbon, kg CO₂/kg material		6.5
Embodied Carbon, kg CO₂/kg material		2.8

Embodied Energy, MJ/kg		91
Embodied Energy, MJ/kg		40

Embodied Water, L/kg		220
Embodied Water, L/kg		140

Common Calculations

PREN (Pitting Resistance)		28
PREN (Pitting Resistance)		18

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		21
Strength to Weight: Axial, points		37

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		29

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		28

Alloy Composition

Carbon (C), %		0 to 0.070
Carbon (C), %		0 to 0.050

Chromium (Cr), %		19 to 21
Chromium (Cr), %		16 to 16.8

Copper (Cu), %		3.0 to 4.0
Copper (Cu), %		3.3 to 4.0

Iron (Fe), %		31.8 to 43.5
Iron (Fe), %		71.6 to 75.9

Manganese (Mn), %		0.5 to 2.5
Manganese (Mn), %		0.25 to 0.75

Molybdenum (Mo), %		2.0 to 3.0
Molybdenum (Mo), %		0 to 0.75

Nickel (Ni), %		32 to 36
Nickel (Ni), %		4.5 to 5.0

Niobium (Nb), %		0 to 1.0
Niobium (Nb), %		0.15 to 0.3

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

Silicon (Si), %		0 to 0.6
Silicon (Si), %		0 to 0.75

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