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Nickel 625 vs. S30615 Stainless Steel

Nickel 625 belongs to the nickel alloys classification, while S30615 stainless steel belongs to the iron alloys. They have a modest 36% 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 nickel 625 and the bottom bar is S30615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 33 to 34
39
Fatigue Strength, MPa 240 to 320
270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
75
Shear Strength, MPa 530 to 600
470
Tensile Strength: Ultimate (UTS), MPa 790 to 910
690
Tensile Strength: Yield (Proof), MPa 320 to 450
310

Thermal Properties

Latent Heat of Fusion, J/g 330
340
Maximum Temperature: Mechanical, °C 980
960
Melting Completion (Liquidus), °C 1350
1370
Melting Onset (Solidus), °C 1290
1320
Specific Heat Capacity, J/kg-K 440
500
Thermal Conductivity, W/m-K 11
14
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 80
19
Density, g/cm3 8.6
7.6
Embodied Carbon, kg CO2/kg material 14
3.7
Embodied Energy, MJ/kg 190
53
Embodied Water, L/kg 290
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
220
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 29
25
Strength to Weight: Bending, points 22 to 24
23
Thermal Diffusivity, mm2/s 2.9
3.7
Thermal Shock Resistance, points 22 to 25
16

Alloy Composition

Aluminum (Al), % 0 to 0.4
0.8 to 1.5
Carbon (C), % 0 to 0.1
0.16 to 0.24
Chromium (Cr), % 20 to 23
17 to 19.5
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
56.7 to 65.3
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
13.5 to 16
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.5
3.2 to 4.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0