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AWS ERNi-1 vs. ASTM B522 Class I

AWS ERNi-1 belongs to the nickel alloys classification, while ASTM B522 class I belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS ERNi-1 and the bottom bar is ASTM B522 class I.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
96
Elongation at Break, % 22
1.1 to 29
Poisson's Ratio 0.31
0.41
Shear Modulus, GPa 69
34
Tensile Strength: Ultimate (UTS), MPa 470
280 to 490

Thermal Properties

Latent Heat of Fusion, J/g 300
77
Melting Completion (Liquidus), °C 1360
1030
Melting Onset (Solidus), °C 1310
1030
Specific Heat Capacity, J/kg-K 450
160
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 19
11
Electrical Conductivity: Equal Weight (Specific), % IACS 19
5.8

Otherwise Unclassified Properties

Density, g/cm3 8.7
17

Common Calculations

Stiffness to Weight: Axial, points 12
3.1
Stiffness to Weight: Bending, points 22
8.9
Strength to Weight: Axial, points 15
4.4 to 7.8
Strength to Weight: Bending, points 15
5.5 to 8.0
Thermal Shock Resistance, points 17
13 to 24

Alloy Composition

Aluminum (Al), % 0 to 1.5
0
Carbon (C), % 0 to 0.15
0
Copper (Cu), % 0 to 0.25
0
Gold (Au), % 0
68 to 70
Iron (Fe), % 0 to 1.0
0
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 93 to 98
0
Phosphorus (P), % 0 to 0.030
0
Platinum (Pt), % 0
5.0 to 7.0
Silicon (Si), % 0 to 0.75
0
Silver (Ag), % 0
23.5 to 26.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 2.0 to 3.5
0
Residuals, % 0
0 to 0.35