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R30556 Alloy vs. AWS E310H

Both R30556 alloy and AWS E310H are iron alloys. They have 74% 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 E310H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
11
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 81
79
Tensile Strength: Ultimate (UTS), MPa 780
690

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1330
1350
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 11
14
Thermal Expansion, µm/m-K 15
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 70
26
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.7
4.6
Embodied Energy, MJ/kg 130
65
Embodied Water, L/kg 300
200

Common Calculations

PREN (Pitting Resistance) 40
28
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26
25
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 2.9
3.8
Thermal Shock Resistance, points 18
17

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
0
Boron (B), % 0 to 0.020
0
Carbon (C), % 0.050 to 0.15
0.35 to 0.45
Chromium (Cr), % 21 to 23
25 to 28
Cobalt (Co), % 16 to 21
0
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 20.4 to 38.2
44.2 to 53.7
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
0 to 0.75
Nickel (Ni), % 19 to 22.5
20 to 22.5
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 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Tantalum (Ta), % 0.3 to 1.3
0
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0.0010 to 0.1
0