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N08028 Stainless Steel vs. AISI 439 Stainless Steel

Both N08028 stainless steel and AISI 439 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 54% 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 N08028 stainless steel and the bottom bar is AISI 439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
23
Fatigue Strength, MPa 220
170
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 80
78
Shear Modulus, GPa 80
77
Shear Strength, MPa 400
310
Tensile Strength: Ultimate (UTS), MPa 570
490
Tensile Strength: Yield (Proof), MPa 240
250

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Corrosion, °C 460
530
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1420
1510
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
25
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.0
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.4
2.3
Embodied Energy, MJ/kg 89
34
Embodied Water, L/kg 240
120

Common Calculations

PREN (Pitting Resistance) 39
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
95
Resilience: Unit (Modulus of Resilience), kJ/m3 140
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 3.2
6.7
Thermal Shock Resistance, points 12
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 26 to 28
17 to 19
Copper (Cu), % 0.6 to 1.4
0
Iron (Fe), % 29 to 40.4
77.1 to 82.8
Manganese (Mn), % 0 to 2.5
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 30 to 34
0 to 0.5
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.1