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ACI-ASTM CA6N Steel vs. S44537 Stainless Steel

Both ACI-ASTM CA6N steel and S44537 stainless steel are iron alloys. They have 86% 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 CA6N steel and the bottom bar is S44537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
21
Fatigue Strength, MPa 640
230
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
79
Tensile Strength: Ultimate (UTS), MPa 1080
510
Tensile Strength: Yield (Proof), MPa 1060
360

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
530
Maximum Temperature: Mechanical, °C 740
1000
Melting Completion (Liquidus), °C 1440
1480
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
21
Thermal Expansion, µm/m-K 9.9
11

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 11
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.5
3.4
Embodied Energy, MJ/kg 35
50
Embodied Water, L/kg 110
140

Common Calculations

PREN (Pitting Resistance) 12
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
95
Resilience: Unit (Modulus of Resilience), kJ/m3 2900
320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 38
18
Strength to Weight: Bending, points 30
18
Thermal Diffusivity, mm2/s 6.1
5.6
Thermal Shock Resistance, points 40
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 10.5 to 12.5
20 to 24
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 77.9 to 83.5
69 to 78.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0 to 0.5
0 to 0.8
Nickel (Ni), % 6.0 to 8.0
0 to 0.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.020
0 to 0.050
Silicon (Si), % 0 to 1.0
0.1 to 0.6
Sulfur (S), % 0 to 0.020
0 to 0.0060
Titanium (Ti), % 0
0.020 to 0.2
Tungsten (W), % 0
1.0 to 3.0