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AWS E308H vs. ASTM B617 Coin Silver

AWS E308H belongs to the iron alloys classification, while ASTM B617 coin silver belongs to the otherwise unclassified metals. There are 18 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 E308H and the bottom bar is ASTM B617 coin silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
75
Elongation at Break, % 40
1.1 to 22
Poisson's Ratio 0.28
0.37
Shear Modulus, GPa 77
28
Tensile Strength: Ultimate (UTS), MPa 620
290 to 520

Thermal Properties

Latent Heat of Fusion, J/g 290
120
Melting Completion (Liquidus), °C 1420
870
Melting Onset (Solidus), °C 1380
780
Specific Heat Capacity, J/kg-K 480
250
Thermal Expansion, µm/m-K 14
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
83
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
72

Otherwise Unclassified Properties

Density, g/cm3 7.8
10

Common Calculations

Stiffness to Weight: Axial, points 14
4.1
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 22
7.7 to 14
Strength to Weight: Bending, points 21
9.3 to 14
Thermal Shock Resistance, points 16
14 to 25

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Carbon (C), % 0.040 to 0.080
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0 to 0.75
9.0 to 10.4
Iron (Fe), % 62.9 to 72.5
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 9.0 to 11
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
89.6 to 91
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.060
Residuals, % 0
0 to 0.060