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Nickel 625 vs. AISI 334 Stainless Steel

Nickel 625 belongs to the nickel alloys classification, while AISI 334 stainless steel belongs to the iron alloys. They have 42% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 33 to 34
34
Fatigue Strength, MPa 240 to 320
150
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 530 to 600
360
Tensile Strength: Ultimate (UTS), MPa 790 to 910
540
Tensile Strength: Yield (Proof), MPa 320 to 450
190

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 980
1000
Melting Completion (Liquidus), °C 1350
1410
Melting Onset (Solidus), °C 1290
1370
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 80
22
Density, g/cm3 8.6
7.9
Embodied Carbon, kg CO2/kg material 14
4.1
Embodied Energy, MJ/kg 190
59
Embodied Water, L/kg 290
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
140
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
96
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 29
19
Strength to Weight: Bending, points 22 to 24
19
Thermal Shock Resistance, points 22 to 25
12

Alloy Composition

Aluminum (Al), % 0 to 0.4
0.15 to 0.6
Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 20 to 23
18 to 20
Cobalt (Co), % 0 to 1.0
0
Iron (Fe), % 0 to 5.0
55.7 to 62.7
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
19 to 21
Niobium (Nb), % 3.2 to 4.2
0
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 0.015
Titanium (Ti), % 0 to 0.4
0.15 to 0.6