MakeItFrom.com
Menu (ESC)

AWS E80C-B8 vs. AWS E409Nb

Both AWS E80C-B8 and AWS E409Nb are iron alloys. Both are furnished in the post-weld heat treated (PWHT) condition. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is AWS E80C-B8 and the bottom bar is AWS E409Nb.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
23
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 620
500
Tensile Strength: Yield (Proof), MPa 540
380

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 25
25
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 11
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
2.9
Embodied Energy, MJ/kg 28
42
Embodied Water, L/kg 89
100

Common Calculations

PREN (Pitting Resistance) 13
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 740
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 6.9
6.8
Thermal Shock Resistance, points 17
14

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.12
Chromium (Cr), % 8.0 to 10.5
11 to 14
Copper (Cu), % 0 to 0.35
0 to 0.75
Iron (Fe), % 85.5 to 90.6
80.2 to 88.5
Manganese (Mn), % 0.4 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.8 to 1.2
0 to 0.75
Nickel (Ni), % 0 to 0.2
0 to 0.6
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.25 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0 to 0.030
0
Residuals, % 0 to 0.5
0