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ASTM A356 Grade 5 vs. Nickel 825

ASTM A356 grade 5 belongs to the iron alloys classification, while nickel 825 belongs to the nickel alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A356 grade 5 and the bottom bar is nickel 825.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
34
Fatigue Strength, MPa 230
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 550
650
Tensile Strength: Yield (Proof), MPa 310
260

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
980
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 49
11
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
41
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 1.5
7.2
Embodied Energy, MJ/kg 20
100
Embodied Water, L/kg 49
230

Common Calculations

PREN (Pitting Resistance) 2.2
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 250
170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 13
2.9
Thermal Shock Resistance, points 16
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Carbon (C), % 0 to 0.25
0 to 0.050
Chromium (Cr), % 0.4 to 0.7
19.5 to 23.5
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 97.1 to 99.2
22 to 37.9
Manganese (Mn), % 0 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.4 to 0.6
2.5 to 3.5
Nickel (Ni), % 0
38 to 46
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.6
0 to 0.050
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.6 to 1.2