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AISI 384 Stainless Steel vs. AWS ERNiCrMo-4

AISI 384 stainless steel belongs to the iron alloys classification, while AWS ERNiCrMo-4 belongs to the nickel alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AISI 384 stainless steel and the bottom bar is AWS ERNiCrMo-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
84
Tensile Strength: Ultimate (UTS), MPa 480
790

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1420
1590
Melting Onset (Solidus), °C 1380
1530
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
70
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 3.7
13
Embodied Energy, MJ/kg 52
170
Embodied Water, L/kg 150
280

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 17
21
Thermal Shock Resistance, points 11
22

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.020
Chromium (Cr), % 15 to 17
14.5 to 16.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 60.9 to 68
4.0 to 7.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
15 to 17
Nickel (Ni), % 17 to 19
50 to 63.5
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.0 to 4.5
Vanadium (V), % 0
0 to 0.35
Residuals, % 0
0 to 0.5