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N08330 Stainless Steel vs. S44660 Stainless Steel

Both N08330 stainless steel and S44660 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 65% of their average alloy composition in common.

For each property being compared, the top bar is N08330 stainless steel and the bottom bar is S44660 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
210
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
20
Fatigue Strength, MPa 190
330
Poisson's Ratio 0.28
0.27
Rockwell B Hardness 80
88
Shear Modulus, GPa 76
81
Shear Strength, MPa 360
410
Tensile Strength: Ultimate (UTS), MPa 550
660
Tensile Strength: Yield (Proof), MPa 230
510

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 420
640
Maximum Temperature: Mechanical, °C 1050
1100
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 32
21
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.4
4.3
Embodied Energy, MJ/kg 77
61
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 19
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
640
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 3.1
4.5
Thermal Shock Resistance, points 13
21

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17 to 20
25 to 28
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 38.3 to 48.3
60.4 to 71
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 34 to 37
1.0 to 3.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.75 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tin (Sn), % 0 to 0.025
0
Titanium (Ti), % 0
0.2 to 1.0