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AISI 347H Stainless Steel vs. Nickel 825

AISI 347H stainless steel belongs to the iron alloys classification, while nickel 825 belongs to the nickel alloys. They have 60% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 347H stainless steel and the bottom bar is nickel 825.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
34
Fatigue Strength, MPa 200
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 400
430
Tensile Strength: Ultimate (UTS), MPa 580
650
Tensile Strength: Yield (Proof), MPa 230
260

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Mechanical, °C 940
980
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 16
11
Thermal Expansion, µm/m-K 16
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 19
41
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.6
7.2
Embodied Energy, MJ/kg 52
100
Embodied Water, L/kg 150
230

Common Calculations

PREN (Pitting Resistance) 18
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
180
Resilience: Unit (Modulus of Resilience), kJ/m3 140
170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
22
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 4.2
2.9
Thermal Shock Resistance, points 13
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Carbon (C), % 0.040 to 0.1
0 to 0.050
Chromium (Cr), % 17 to 19
19.5 to 23.5
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 64.1 to 74
22 to 37.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 9.0 to 13
38 to 46
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.050
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.6 to 1.2