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N08366 Stainless Steel vs. ACI-ASTM CH20 Steel

Both N08366 stainless steel and ACI-ASTM CH20 steel are iron alloys. They have 83% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is N08366 stainless steel and the bottom bar is ACI-ASTM CH20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
38
Fatigue Strength, MPa 190
290
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 590
610
Tensile Strength: Yield (Proof), MPa 240
350

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 430
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 13
14
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 33
20
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.2
3.7
Embodied Energy, MJ/kg 84
53
Embodied Water, L/kg 200
180

Common Calculations

PREN (Pitting Resistance) 42
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
200
Resilience: Unit (Modulus of Resilience), kJ/m3 150
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 3.4
3.7
Thermal Shock Resistance, points 13
15

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.2
Chromium (Cr), % 20 to 22
22 to 26
Iron (Fe), % 42.4 to 50.5
54.7 to 66
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 6.0 to 7.0
0 to 0.5
Nickel (Ni), % 23.5 to 25.5
12 to 15
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040