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AWS ERNi-1 vs. ASTM A225 Steel

AWS ERNi-1 belongs to the nickel alloys classification, while ASTM A225 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS ERNi-1 and the bottom bar is ASTM A225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 22
21 to 23
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 69
73
Tensile Strength: Ultimate (UTS), MPa 470
620 to 830

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1310
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 73
52
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 19
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 19
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 60
2.3
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 11
1.8
Embodied Energy, MJ/kg 150
24 to 25
Embodied Water, L/kg 230
48

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 15
22 to 29
Strength to Weight: Bending, points 15
21 to 25
Thermal Diffusivity, mm2/s 19
14
Thermal Shock Resistance, points 17
18 to 24