AWS E330 vs. S21603 Stainless Steel

Both AWS E330 and S21603 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AWS E330 and the bottom bar is S21603 stainless steel.

AWS E330 (W88331) Weld Metal UNS S21603 (XM-18) Stainless Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		29
Elongation at Break, %		45

Poisson's Ratio		0.29
Poisson's Ratio		0.28

Shear Modulus, GPa		76
Shear Modulus, GPa		79

Tensile Strength: Ultimate (UTS), MPa		580
Tensile Strength: Ultimate (UTS), MPa		690

Thermal Properties

Latent Heat of Fusion, J/g		300
Latent Heat of Fusion, J/g		290

Melting Completion (Liquidus), °C		1400
Melting Completion (Liquidus), °C		1420

Melting Onset (Solidus), °C		1350
Melting Onset (Solidus), °C		1380

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

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		17

Otherwise Unclassified Properties

Base Metal Price, % relative		31
Base Metal Price, % relative		17

Density, g/cm³		8.1
Density, g/cm³		7.7

Embodied Carbon, kg CO₂/kg material		5.4
Embodied Carbon, kg CO₂/kg material		3.6

Embodied Energy, MJ/kg		75
Embodied Energy, MJ/kg		50

Embodied Water, L/kg		180
Embodied Water, L/kg		160

Common Calculations

PREN (Pitting Resistance)		17
PREN (Pitting Resistance)		34

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		20
Strength to Weight: Axial, points		25

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		22

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		15

Alloy Composition

Carbon (C), %		0.18 to 0.25
Carbon (C), %		0 to 0.030

Chromium (Cr), %		14 to 17
Chromium (Cr), %		17.5 to 22

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

Iron (Fe), %		40.7 to 51.8
Iron (Fe), %		57.6 to 67.8

Manganese (Mn), %		1.0 to 2.5
Manganese (Mn), %		7.5 to 9.0

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

Nickel (Ni), %		33 to 37
Nickel (Ni), %		5.0 to 7.0

Nitrogen (N), %		0
Nitrogen (N), %		0.25 to 0.5

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0 to 0.045

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0 to 0.75

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