AWS BVAg-18 vs. S17400 Stainless Steel

AWS BVAg-18 belongs to the otherwise unclassified metals classification, while S17400 stainless steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-18 and the bottom bar is S17400 stainless steel.

AWS BVAg-18 (P07607) Vacuum Service Filler Metal UNS S17400 (17-4 PH, Alloy 630) Stainless Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.36
Poisson's Ratio		0.28

Shear Modulus, GPa		30
Shear Modulus, GPa		75

Tensile Strength: Ultimate (UTS), MPa		180
Tensile Strength: Ultimate (UTS), MPa		910 to 1390

Thermal Properties

Latent Heat of Fusion, J/g		140
Latent Heat of Fusion, J/g		280

Melting Completion (Liquidus), °C		720
Melting Completion (Liquidus), °C		1440

Melting Onset (Solidus), °C		600
Melting Onset (Solidus), °C		1400

Specific Heat Capacity, J/kg-K		280
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		11

Otherwise Unclassified Properties

Density, g/cm³		9.7
Density, g/cm³		7.8

Embodied Carbon, kg CO₂/kg material		59
Embodied Carbon, kg CO₂/kg material		2.7

Embodied Energy, MJ/kg		930
Embodied Energy, MJ/kg		39

Common Calculations

Stiffness to Weight: Axial, points		4.7
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		15
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		5.1
Strength to Weight: Axial, points		32 to 49

Strength to Weight: Bending, points		7.3
Strength to Weight: Bending, points		27 to 35

Thermal Shock Resistance, points		8.1
Thermal Shock Resistance, points		30 to 46

Alloy Composition

Cadmium (Cd), %		0 to 0.0010
Cadmium (Cd), %		0

Carbon (C), %		0 to 0.0050
Carbon (C), %		0 to 0.070

Chromium (Cr), %		0
Chromium (Cr), %		15 to 17

Copper (Cu), %		28.5 to 31.5
Copper (Cu), %		3.0 to 5.0

Iron (Fe), %		0
Iron (Fe), %		70.4 to 78.9

Lead (Pb), %		0 to 0.0020
Lead (Pb), %		0

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

Nickel (Ni), %		0
Nickel (Ni), %		3.0 to 5.0

Niobium (Nb), %		0
Niobium (Nb), %		0.15 to 0.45

Phosphorus (P), %		0 to 0.0020
Phosphorus (P), %		0 to 0.040

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

Silver (Ag), %		59 to 61
Silver (Ag), %		0

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

Tin (Sn), %		9.5 to 10.5
Tin (Sn), %		0

Zinc (Zn), %		0 to 0.0010
Zinc (Zn), %		0