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ACI-ASTM CA6NM Steel vs. N08020 Stainless Steel

Both ACI-ASTM CA6NM steel and N08020 stainless steel are iron alloys. They have 55% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6NM steel and the bottom bar is N08020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
15 to 34
Fatigue Strength, MPa 380
210 to 240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 850
610 to 620
Tensile Strength: Yield (Proof), MPa 620
270 to 420

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
490
Maximum Temperature: Mechanical, °C 770
1100
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 25
12
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
38
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.5
6.6
Embodied Energy, MJ/kg 34
92
Embodied Water, L/kg 110
220

Common Calculations

PREN (Pitting Resistance) 15
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
83 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
180 to 440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
21
Strength to Weight: Bending, points 26
20
Thermal Diffusivity, mm2/s 6.7
3.2
Thermal Shock Resistance, points 31
15

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.070
Chromium (Cr), % 11.5 to 14
19 to 21
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 78.4 to 84.6
29.9 to 44
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.4 to 1.0
2.0 to 3.0
Nickel (Ni), % 3.5 to 4.5
32 to 38
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.035