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Nickel 625 vs. AISI 403 Stainless Steel

Nickel 625 belongs to the nickel alloys classification, while AISI 403 stainless steel belongs to the iron alloys. 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 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 33 to 34
16 to 25
Fatigue Strength, MPa 240 to 320
200 to 340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 530 to 600
340 to 480
Tensile Strength: Ultimate (UTS), MPa 790 to 910
530 to 780
Tensile Strength: Yield (Proof), MPa 320 to 450
280 to 570

Thermal Properties

Latent Heat of Fusion, J/g 330
270
Maximum Temperature: Mechanical, °C 980
740
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
28
Thermal Expansion, µm/m-K 13
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 80
6.5
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
1.9
Embodied Energy, MJ/kg 190
27
Embodied Water, L/kg 290
99

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
210 to 840
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 29
19 to 28
Strength to Weight: Bending, points 22 to 24
19 to 24
Thermal Diffusivity, mm2/s 2.9
7.6
Thermal Shock Resistance, points 22 to 25
20 to 29

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 20 to 23
11.5 to 13
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
84.7 to 88.5
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
0 to 0.6
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.4
0

Comparable Variants