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AWS E309H vs. Grade M30H Nickel

AWS E309H belongs to the iron alloys classification, while grade M30H nickel belongs to the nickel alloys. There are 24 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 E309H and the bottom bar is grade M30H nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 34
11
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 78
61
Tensile Strength: Ultimate (UTS), MPa 620
770

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Melting Completion (Liquidus), °C 1410
1250
Melting Onset (Solidus), °C 1370
1200
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
50
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 3.7
7.7
Embodied Energy, MJ/kg 52
110
Embodied Water, L/kg 180
250

Common Calculations

Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 22
25
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 4.0
5.7
Thermal Shock Resistance, points 16
27

Alloy Composition

Carbon (C), % 0.040 to 0.15
0 to 0.3
Chromium (Cr), % 22 to 25
0
Copper (Cu), % 0 to 0.75
27 to 33
Iron (Fe), % 55.8 to 65.5
0 to 3.5
Manganese (Mn), % 0.5 to 2.5
0 to 1.5
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 12 to 14
57.9 to 70.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
2.7 to 3.7
Sulfur (S), % 0 to 0.030
0 to 0.030