S45000 Stainless Steel vs. AWS BVAg-18

S45000 stainless steel belongs to the iron alloys classification, while AWS BVAg-18 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.

For each property being compared, the top bar is S45000 stainless steel and the bottom bar is AWS BVAg-18.

UNS S45000 (Alloy 450, XM-25) Stainless Steel AWS BVAg-18 (P07607) Vacuum Service Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		82

Poisson's Ratio		0.28
Poisson's Ratio		0.36

Shear Modulus, GPa		76
Shear Modulus, GPa		30

Tensile Strength: Ultimate (UTS), MPa		980 to 1410
Tensile Strength: Ultimate (UTS), MPa		180

Thermal Properties

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

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

Melting Onset (Solidus), °C		1390
Melting Onset (Solidus), °C		600

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

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

Otherwise Unclassified Properties

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

Embodied Carbon, kg CO₂/kg material		2.8
Embodied Carbon, kg CO₂/kg material		59

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

Common Calculations

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

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

Strength to Weight: Axial, points		35 to 50
Strength to Weight: Axial, points		5.1

Strength to Weight: Bending, points		28 to 36
Strength to Weight: Bending, points		7.3

Thermal Shock Resistance, points		33 to 47
Thermal Shock Resistance, points		8.1

Alloy Composition

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

Carbon (C), %		0 to 0.050
Carbon (C), %		0 to 0.0050

Chromium (Cr), %		14 to 16
Chromium (Cr), %		0

Copper (Cu), %		1.3 to 1.8
Copper (Cu), %		28.5 to 31.5

Iron (Fe), %		72.1 to 79.3
Iron (Fe), %		0

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

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

Molybdenum (Mo), %		0.5 to 1.0
Molybdenum (Mo), %		0

Nickel (Ni), %		5.0 to 7.0
Nickel (Ni), %		0

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

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

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

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

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

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