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Nickel 625 vs. S31727 Stainless Steel

Nickel 625 belongs to the nickel alloys classification, while S31727 stainless steel belongs to the iron alloys. They have 41% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 33 to 34
40
Fatigue Strength, MPa 240 to 320
240
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
78
Shear Strength, MPa 530 to 600
430
Tensile Strength: Ultimate (UTS), MPa 790 to 910
630
Tensile Strength: Yield (Proof), MPa 320 to 450
270

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 980
1010
Melting Completion (Liquidus), °C 1350
1440
Melting Onset (Solidus), °C 1290
1390
Specific Heat Capacity, J/kg-K 440
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 80
24
Density, g/cm3 8.6
8.0
Embodied Carbon, kg CO2/kg material 14
4.7
Embodied Energy, MJ/kg 190
64
Embodied Water, L/kg 290
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
200
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 29
22
Strength to Weight: Bending, points 22 to 24
20
Thermal Shock Resistance, points 22 to 25
14

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 20 to 23
17.5 to 19
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0
2.8 to 4.0
Iron (Fe), % 0 to 5.0
53.7 to 61.3
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
3.8 to 4.5
Nickel (Ni), % 58 to 68.9
14.5 to 16.5
Niobium (Nb), % 3.2 to 4.2
0
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0