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ACI-ASTM CB6 Steel vs. S44537 Stainless Steel

Both ACI-ASTM CB6 steel and S44537 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 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 ACI-ASTM CB6 steel and the bottom bar is S44537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
21
Fatigue Strength, MPa 410
230
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 880
510
Tensile Strength: Yield (Proof), MPa 660
360

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
530
Maximum Temperature: Mechanical, °C 870
1000
Melting Completion (Liquidus), °C 1440
1480
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
21
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.5
3.4
Embodied Energy, MJ/kg 36
50
Embodied Water, L/kg 130
140

Common Calculations

PREN (Pitting Resistance) 17
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
95
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32
18
Strength to Weight: Bending, points 26
18
Thermal Diffusivity, mm2/s 4.6
5.6
Thermal Shock Resistance, points 31
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 15.5 to 17.5
20 to 24
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 74.4 to 81
69 to 78.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0 to 1.0
0 to 0.8
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 3.5 to 5.5
0 to 0.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 1.0
0.1 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.0060
Titanium (Ti), % 0
0.020 to 0.2
Tungsten (W), % 0
1.0 to 3.0