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N08904 Stainless Steel vs. AISI 440C Stainless Steel

Both N08904 stainless steel and AISI 440C stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 31 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 N08904 stainless steel and the bottom bar is AISI 440C stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
2.0 to 14
Fatigue Strength, MPa 200
260 to 840
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 370
430 to 1120
Tensile Strength: Ultimate (UTS), MPa 540
710 to 1970
Tensile Strength: Yield (Proof), MPa 240
450 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 1100
870
Melting Completion (Liquidus), °C 1440
1480
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
22
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 32
9.0
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.8
2.2
Embodied Energy, MJ/kg 79
31
Embodied Water, L/kg 200
120

Common Calculations

PREN (Pitting Resistance) 37
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
39 to 88
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
26 to 71
Strength to Weight: Bending, points 18
23 to 46
Thermal Diffusivity, mm2/s 3.1
6.0
Thermal Shock Resistance, points 12
26 to 71

Alloy Composition

Carbon (C), % 0 to 0.020
1.0 to 1.2
Chromium (Cr), % 19 to 23
16 to 18
Copper (Cu), % 1.0 to 2.0
0
Iron (Fe), % 38.8 to 53
78 to 83.1
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
0 to 0.75
Nickel (Ni), % 23 to 28
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015