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Nickel 625 vs. AISI 304L Stainless Steel

Nickel 625 belongs to the nickel alloys classification, while AISI 304L stainless steel belongs to the iron alloys. They have a modest 32% 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 (6, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is AISI 304L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 33 to 34
6.7 to 46
Fatigue Strength, MPa 240 to 320
170 to 430
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 530 to 600
370 to 680
Tensile Strength: Ultimate (UTS), MPa 790 to 910
540 to 1160
Tensile Strength: Yield (Proof), MPa 320 to 450
190 to 870

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 980
540
Melting Completion (Liquidus), °C 1350
1450
Melting Onset (Solidus), °C 1290
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 11
16
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 80
16
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
3.1
Embodied Energy, MJ/kg 190
44
Embodied Water, L/kg 290
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
71 to 240
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
92 to 1900
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 29
19 to 41
Strength to Weight: Bending, points 22 to 24
19 to 31
Thermal Diffusivity, mm2/s 2.9
4.2
Thermal Shock Resistance, points 22 to 25
12 to 25

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 20 to 23
18 to 20
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
65 to 74
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
8.0 to 12
Niobium (Nb), % 3.2 to 4.2
0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0

Comparable Variants