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N08028 Stainless Steel vs. SAE-AISI 4320 Steel

Both N08028 stainless steel and SAE-AISI 4320 steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is N08028 stainless steel and the bottom bar is SAE-AISI 4320 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160 to 240
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
21 to 29
Fatigue Strength, MPa 220
320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 400
370 to 500
Tensile Strength: Ultimate (UTS), MPa 570
570 to 790
Tensile Strength: Yield (Proof), MPa 240
430 to 460

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
46
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 37
3.4
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.4
1.7
Embodied Energy, MJ/kg 89
22
Embodied Water, L/kg 240
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 140
480 to 560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
20 to 28
Strength to Weight: Bending, points 19
19 to 24
Thermal Diffusivity, mm2/s 3.2
13
Thermal Shock Resistance, points 12
19 to 27

Alloy Composition

Carbon (C), % 0 to 0.030
0.17 to 0.22
Chromium (Cr), % 26 to 28
0.4 to 0.6
Copper (Cu), % 0.6 to 1.4
0
Iron (Fe), % 29 to 40.4
95.8 to 97
Manganese (Mn), % 0 to 2.5
0.45 to 0.65
Molybdenum (Mo), % 3.0 to 4.0
0.2 to 0.3
Nickel (Ni), % 30 to 34
1.7 to 2.0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040