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N08811 Stainless Steel vs. AISI 304H Stainless Steel

Both N08811 stainless steel and AISI 304H stainless steel are iron alloys. Both are furnished in the annealed condition. They have 75% of their average alloy composition in common. There are 32 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 N08811 stainless steel and the bottom bar is AISI 304H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 33
40
Fatigue Strength, MPa 150
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 340
400
Tensile Strength: Ultimate (UTS), MPa 510
580
Tensile Strength: Yield (Proof), MPa 190
230

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 490
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1390
1430
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 30
15
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.3
3.0
Embodied Energy, MJ/kg 76
43
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 21
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
190
Resilience: Unit (Modulus of Resilience), kJ/m3 94
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 3.0
4.5
Thermal Shock Resistance, points 13
13

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0.060 to 0.1
0.040 to 0.1
Chromium (Cr), % 19 to 23
18 to 20
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 39.5 to 50.6
66.6 to 74
Manganese (Mn), % 0 to 1.5
0 to 2.0
Nickel (Ni), % 30 to 35
8.0 to 10.5
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.15 to 0.6
0