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R30556 Alloy vs. AWS E385

Both R30556 alloy and AWS E385 are iron alloys. They have 76% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is R30556 alloy and the bottom bar is AWS E385.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
79
Tensile Strength: Ultimate (UTS), MPa 780
580

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1330
1390
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 11
14
Thermal Expansion, µm/m-K 15
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 70
31
Density, g/cm3 8.4
8.1
Embodied Carbon, kg CO2/kg material 8.7
5.8
Embodied Energy, MJ/kg 130
79
Embodied Water, L/kg 300
200

Common Calculations

PREN (Pitting Resistance) 40
36
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26
20
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 2.9
3.6
Thermal Shock Resistance, points 18
15

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
0
Boron (B), % 0 to 0.020
0
Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 21 to 23
19.5 to 21.5
Cobalt (Co), % 16 to 21
0
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 20.4 to 38.2
41.8 to 50.1
Lanthanum (La), % 0.0050 to 0.1
0
Manganese (Mn), % 0.5 to 2.0
1.0 to 2.5
Molybdenum (Mo), % 2.5 to 4.0
4.2 to 5.2
Nickel (Ni), % 19 to 22.5
24 to 26
Niobium (Nb), % 0 to 0.3
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0.2 to 0.8
0 to 0.9
Sulfur (S), % 0 to 0.015
0 to 0.020
Tantalum (Ta), % 0.3 to 1.3
0
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0.0010 to 0.1
0