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AWS E309H vs. 70Ag-30Ni Alloy

AWS E309H belongs to the iron alloys classification, while 70Ag-30Ni alloy belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E309H and the bottom bar is 70Ag-30Ni alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Poisson's Ratio 0.27
0.35
Shear Modulus, GPa 78
39
Tensile Strength: Ultimate (UTS), MPa 620
320 to 530

Thermal Properties

Latent Heat of Fusion, J/g 300
170
Melting Completion (Liquidus), °C 1410
960
Melting Onset (Solidus), °C 1370
960
Specific Heat Capacity, J/kg-K 480
300
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
69
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
62

Otherwise Unclassified Properties

Density, g/cm3 7.8
10

Common Calculations

Stiffness to Weight: Axial, points 14
5.8
Stiffness to Weight: Bending, points 25
16
Strength to Weight: Axial, points 22
8.8 to 15
Strength to Weight: Bending, points 21
10 to 15
Thermal Shock Resistance, points 16
13 to 21

Alloy Composition

Carbon (C), % 0.040 to 0.15
0
Chromium (Cr), % 22 to 25
0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 55.8 to 65.5
0
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 12 to 14
28.8 to 31
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
69 to 71
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.2