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ACI-ASTM CB30 Steel vs. N08020 Stainless Steel

Both ACI-ASTM CB30 steel and N08020 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 28 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 ACI-ASTM CB30 steel and the bottom bar is N08020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 500
610 to 620
Tensile Strength: Yield (Proof), MPa 230
270 to 420

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
490
Maximum Temperature: Mechanical, °C 940
1100
Melting Completion (Liquidus), °C 1430
1410
Melting Onset (Solidus), °C 1380
1360
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 21
12
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
38
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 2.3
6.6
Embodied Energy, MJ/kg 33
92
Embodied Water, L/kg 130
220

Common Calculations

PREN (Pitting Resistance) 20
28
Resilience: Unit (Modulus of Resilience), kJ/m3 140
180 to 440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 5.6
3.2
Thermal Shock Resistance, points 17
15

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.070
Chromium (Cr), % 18 to 21
19 to 21
Copper (Cu), % 0 to 1.2
3.0 to 4.0
Iron (Fe), % 72.9 to 82
29.9 to 44
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 2.0
32 to 38
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.035