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AWS E309Nb vs. AWS E410NiMo

Both AWS E309Nb and AWS E410NiMo are iron alloys. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is AWS E309Nb and the bottom bar is AWS E410NiMo.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
17
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 620
850

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
24
Thermal Expansion, µm/m-K 14
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 25
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
2.4
Embodied Energy, MJ/kg 64
34
Embodied Water, L/kg 180
110

Common Calculations

PREN (Pitting Resistance) 25
14
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
30
Strength to Weight: Bending, points 21
26
Thermal Diffusivity, mm2/s 4.0
6.5
Thermal Shock Resistance, points 16
23

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.060
Chromium (Cr), % 22 to 25
11 to 12.5
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 54.8 to 64.8
79 to 84.6
Manganese (Mn), % 0.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0.4 to 0.7
Nickel (Ni), % 12 to 14
4.0 to 5.0
Niobium (Nb), % 0.7 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.9
Sulfur (S), % 0 to 0.030
0 to 0.030