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AISI 440A Stainless Steel vs. Nickel 601

AISI 440A stainless steel belongs to the iron alloys classification, while nickel 601 belongs to the nickel alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 440A stainless steel and the bottom bar is nickel 601.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 5.0 to 20
10 to 38
Fatigue Strength, MPa 270 to 790
220 to 380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 450 to 1040
440 to 530
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
660 to 890
Tensile Strength: Yield (Proof), MPa 420 to 1650
290 to 800

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 760
1100
Melting Completion (Liquidus), °C 1480
1410
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
11
Thermal Expansion, µm/m-K 10
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
49
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 2.2
8.0
Embodied Energy, MJ/kg 31
110
Embodied Water, L/kg 120
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 120
86 to 200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26 to 65
22 to 30
Strength to Weight: Bending, points 23 to 43
20 to 25
Thermal Diffusivity, mm2/s 6.2
2.8
Thermal Shock Resistance, points 26 to 65
17 to 23

Alloy Composition

Aluminum (Al), % 0
1.0 to 1.7
Carbon (C), % 0.6 to 0.75
0 to 0.1
Chromium (Cr), % 16 to 18
21 to 25
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 78.4 to 83.4
7.7 to 20
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0
58 to 63
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015

Comparable Variants