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AWS E430Nb vs. SAE-AISI O1 Steel

Both AWS E430Nb and SAE-AISI O1 steel are iron alloys. They have 82% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS E430Nb and the bottom bar is SAE-AISI O1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 500
640 to 2060

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 24
43
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 15
3.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.9
Embodied Energy, MJ/kg 45
27
Embodied Water, L/kg 120
51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
23 to 73
Strength to Weight: Bending, points 18
21 to 46
Thermal Diffusivity, mm2/s 6.6
12
Thermal Shock Resistance, points 13
21 to 68

Alloy Composition

Carbon (C), % 0 to 0.1
0.85 to 1.0
Chromium (Cr), % 15 to 18
0.4 to 0.6
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 76.2 to 84.5
95 to 97.4
Manganese (Mn), % 0 to 1.0
1.0 to 1.4
Molybdenum (Mo), % 0 to 0.75
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 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0.4 to 0.6
Vanadium (V), % 0
0 to 0.3