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N08330 Stainless Steel vs. AISI 441 Stainless Steel

Both N08330 stainless steel and AISI 441 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 63% of their average alloy composition in common.

For each property being compared, the top bar is N08330 stainless steel and the bottom bar is AISI 441 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
23
Fatigue Strength, MPa 190
180
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 80
77
Shear Modulus, GPa 76
77
Shear Strength, MPa 360
300
Tensile Strength: Ultimate (UTS), MPa 550
470
Tensile Strength: Yield (Proof), MPa 230
270

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 420
550
Maximum Temperature: Mechanical, °C 1050
910
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1340
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
23
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 32
13
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.4
2.8
Embodied Energy, MJ/kg 77
41
Embodied Water, L/kg 190
130

Common Calculations

PREN (Pitting Resistance) 19
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
92
Resilience: Unit (Modulus of Resilience), kJ/m3 140
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 18
17
Thermal Diffusivity, mm2/s 3.1
6.1
Thermal Shock Resistance, points 13
16

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17 to 20
17.5 to 19.5
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 38.3 to 48.3
76 to 82.2
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 34 to 37
0 to 1.0
Niobium (Nb), % 0
0.3 to 0.9
Nitrogen (N), % 0
0 to 0.030
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
0.1 to 0.5