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AISI 440B Stainless Steel vs. Nickel 30

AISI 440B stainless steel belongs to the iron alloys classification, while nickel 30 belongs to the nickel alloys. They have a modest 33% 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 (3, in this case) are not shown.

For each property being compared, the top bar is AISI 440B stainless steel and the bottom bar is nickel 30.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 3.0 to 18
34
Fatigue Strength, MPa 260 to 850
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
82
Shear Strength, MPa 460 to 1110
440
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
660
Tensile Strength: Yield (Proof), MPa 430 to 1860
270

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 870
1020
Melting Completion (Liquidus), °C 1480
1480
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 23
10
Thermal Expansion, µm/m-K 10
13

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
60
Density, g/cm3 7.7
8.5
Embodied Carbon, kg CO2/kg material 2.2
9.4
Embodied Energy, MJ/kg 31
130
Embodied Water, L/kg 120
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57 to 110
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 27 to 70
22
Strength to Weight: Bending, points 24 to 45
20
Thermal Diffusivity, mm2/s 6.1
2.7
Thermal Shock Resistance, points 27 to 70
18

Alloy Composition

Carbon (C), % 0.75 to 1.0
0 to 0.030
Chromium (Cr), % 16 to 18
28 to 31.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0
1.0 to 2.4
Iron (Fe), % 78.2 to 83.3
13 to 17
Manganese (Mn), % 0 to 1.0
0 to 0.030
Molybdenum (Mo), % 0 to 0.75
4.0 to 6.0
Nickel (Ni), % 0
30.2 to 52.2
Niobium (Nb), % 0
0.3 to 1.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 0
1.5 to 4.0