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AWS E409Nb vs. SAE-AISI T15 Steel

Both AWS E409Nb and SAE-AISI T15 steel are iron alloys. They have 76% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS E409Nb and the bottom bar is SAE-AISI T15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 500
830 to 2240

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1460
1690
Melting Onset (Solidus), °C 1410
1640
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 25
21
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
43
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 2.9
16
Embodied Energy, MJ/kg 42
250
Embodied Water, L/kg 100
140

Common Calculations

PREN (Pitting Resistance) 14
27
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 18
26 to 71
Strength to Weight: Bending, points 18
22 to 43
Thermal Diffusivity, mm2/s 6.8
5.6
Thermal Shock Resistance, points 14
26 to 70

Alloy Composition

Carbon (C), % 0 to 0.12
1.5 to 1.6
Chromium (Cr), % 11 to 14
3.8 to 5.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 80.2 to 88.5
67.5 to 73.5
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.75
0 to 1.0
Nickel (Ni), % 0 to 0.6
0 to 0.3
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
11.8 to 13
Vanadium (V), % 0
4.5 to 5.3