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Nickel 625 vs. AISI 302 Stainless Steel

Nickel 625 belongs to the nickel alloys classification, while AISI 302 stainless steel belongs to the iron alloys. They have a modest 30% 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 (5, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is AISI 302 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 33 to 34
4.5 to 46
Fatigue Strength, MPa 240 to 320
210 to 520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 530 to 600
400 to 830
Tensile Strength: Ultimate (UTS), MPa 790 to 910
580 to 1430
Tensile Strength: Yield (Proof), MPa 320 to 450
230 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 980
710
Melting Completion (Liquidus), °C 1350
1420
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
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 80
15
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
3.0
Embodied Energy, MJ/kg 190
42
Embodied Water, L/kg 290
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
59 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
140 to 3070
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 29
21 to 51
Strength to Weight: Bending, points 22 to 24
20 to 36
Thermal Diffusivity, mm2/s 2.9
4.4
Thermal Shock Resistance, points 22 to 25
12 to 31

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 20 to 23
17 to 19
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
67.9 to 75
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 10
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