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ASTM A204 Steel vs. AWS ERNi-1

ASTM A204 steel belongs to the iron alloys classification, while AWS ERNi-1 belongs to the nickel 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 ASTM A204 steel and the bottom bar is AWS ERNi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Elongation at Break, % 18 to 22
22
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
69
Tensile Strength: Ultimate (UTS), MPa 520 to 590
470

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1470
1360
Melting Onset (Solidus), °C 1420 to 1430
1310
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 52
73
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
19
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
19

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
60
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 1.5
11
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 47
230

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 18 to 21
15
Strength to Weight: Bending, points 18 to 20
15
Thermal Diffusivity, mm2/s 14
19
Thermal Shock Resistance, points 15 to 17
17