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Nickel 625 vs. R30556 Alloy

Nickel 625 belongs to the nickel alloys classification, while R30556 alloy belongs to the iron alloys. They have 49% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is R30556 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 33 to 34
45
Fatigue Strength, MPa 240 to 320
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
81
Shear Strength, MPa 530 to 600
550
Tensile Strength: Ultimate (UTS), MPa 790 to 910
780
Tensile Strength: Yield (Proof), MPa 320 to 450
350

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1350
1420
Melting Onset (Solidus), °C 1290
1330
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 11
11
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 80
70
Density, g/cm3 8.6
8.4
Embodied Carbon, kg CO2/kg material 14
8.7
Embodied Energy, MJ/kg 190
130
Embodied Water, L/kg 290
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
290
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 26 to 29
26
Strength to Weight: Bending, points 22 to 24
22
Thermal Diffusivity, mm2/s 2.9
2.9
Thermal Shock Resistance, points 22 to 25
18

Alloy Composition

Aluminum (Al), % 0 to 0.4
0.1 to 0.5
Boron (B), % 0
0 to 0.020
Carbon (C), % 0 to 0.1
0.050 to 0.15
Chromium (Cr), % 20 to 23
21 to 23
Cobalt (Co), % 0 to 1.0
16 to 21
Iron (Fe), % 0 to 5.0
20.4 to 38.2
Lanthanum (La), % 0
0.0050 to 0.1
Manganese (Mn), % 0 to 0.5
0.5 to 2.0
Molybdenum (Mo), % 8.0 to 10
2.5 to 4.0
Nickel (Ni), % 58 to 68.9
19 to 22.5
Niobium (Nb), % 3.2 to 4.2
0 to 0.3
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.5
0.2 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.015
Tantalum (Ta), % 0
0.3 to 1.3
Titanium (Ti), % 0 to 0.4
0
Tungsten (W), % 0
2.0 to 3.5
Zinc (Zn), % 0
0.0010 to 0.1