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AWS ERNiCrCoMo-1 vs. EN 1.4621 Stainless Steel

AWS ERNiCrCoMo-1 belongs to the nickel alloys classification, while EN 1.4621 stainless steel belongs to the iron alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 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 ERNiCrCoMo-1 and the bottom bar is EN 1.4621 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 28
25
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 710
500

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
21
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 75
14
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 10
2.8
Embodied Energy, MJ/kg 140
41
Embodied Water, L/kg 350
140

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 23
18
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 3.5
5.7
Thermal Shock Resistance, points 19
17

Alloy Composition


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Aluminum (Al), % 0.8 to 1.5
0
Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 20 to 24
20 to 21.5
Cobalt (Co), % 10 to 15
0
Copper (Cu), % 0 to 0.5
0.1 to 1.0
Iron (Fe), % 0 to 3.0
74.4 to 79.7
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 42.7 to 61.2
0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.6
0
Residuals, % 0 to 0.5
0