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AWS ERNiMo-3 vs. EN 1.4309 Stainless Steel

AWS ERNiMo-3 belongs to the nickel alloys classification, while EN 1.4309 stainless steel belongs to the iron alloys. They have a modest 22% 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 (14, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiMo-3 and the bottom bar is EN 1.4309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 83
77
Tensile Strength: Ultimate (UTS), MPa 770
490

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1600
1420
Melting Onset (Solidus), °C 1540
1380
Specific Heat Capacity, J/kg-K 400
480
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 70
16
Density, g/cm3 9.1
7.8
Embodied Carbon, kg CO2/kg material 15
3.1
Embodied Energy, MJ/kg 190
45
Embodied Water, L/kg 270
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 21
18
Thermal Shock Resistance, points 24
11

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.030
Chromium (Cr), % 4.0 to 6.0
18 to 20
Cobalt (Co), % 0 to 2.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 4.0 to 7.0
64.2 to 73
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 23 to 26
0
Nickel (Ni), % 53.7 to 69
9.0 to 12
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 0.6
0
Residuals, % 0 to 0.5
0