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AWS BVAg-18 vs. SAE-AISI 4145 Steel

AWS BVAg-18 belongs to the otherwise unclassified metals classification, while SAE-AISI 4145 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-18 and the bottom bar is SAE-AISI 4145 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
190
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 30
73
Tensile Strength: Ultimate (UTS), MPa 180
580

Thermal Properties

Latent Heat of Fusion, J/g 140
250
Melting Completion (Liquidus), °C 720
1460
Melting Onset (Solidus), °C 600
1420
Specific Heat Capacity, J/kg-K 280
470
Thermal Expansion, µm/m-K 19
13

Otherwise Unclassified Properties

Density, g/cm3 9.7
7.8
Embodied Carbon, kg CO2/kg material 59
1.5
Embodied Energy, MJ/kg 930
20

Common Calculations

Stiffness to Weight: Axial, points 4.7
13
Stiffness to Weight: Bending, points 15
24
Strength to Weight: Axial, points 5.1
21
Strength to Weight: Bending, points 7.3
20
Thermal Shock Resistance, points 8.1
17

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0.43 to 0.48
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 28.5 to 31.5
0
Iron (Fe), % 0
96.7 to 97.7
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.0020
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Silver (Ag), % 59 to 61
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 9.5 to 10.5
0
Zinc (Zn), % 0 to 0.0010
0