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AISI 347H Stainless Steel vs. Nickel 693

AISI 347H stainless steel belongs to the iron alloys classification, while nickel 693 belongs to the nickel alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 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 AISI 347H stainless steel and the bottom bar is nickel 693.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
34
Fatigue Strength, MPa 200
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 400
440
Tensile Strength: Ultimate (UTS), MPa 580
660
Tensile Strength: Yield (Proof), MPa 230
310

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 940
1010
Melting Completion (Liquidus), °C 1430
1350
Melting Onset (Solidus), °C 1390
1310
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
9.1
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 19
60
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.6
9.9
Embodied Energy, MJ/kg 52
140
Embodied Water, L/kg 150
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
190
Resilience: Unit (Modulus of Resilience), kJ/m3 140
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
23
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.2
2.3
Thermal Shock Resistance, points 13
19

Alloy Composition

Aluminum (Al), % 0
2.5 to 4.0
Carbon (C), % 0.040 to 0.1
0 to 0.15
Chromium (Cr), % 17 to 19
27 to 31
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 64.1 to 74
2.5 to 6.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 9.0 to 13
53.3 to 67.5
Niobium (Nb), % 0 to 1.0
0.5 to 2.5
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 1.0