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ACI-ASTM CA6N Steel vs. S33425 Stainless Steel

Both ACI-ASTM CA6N steel and S33425 stainless steel are iron alloys. They have 71% 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 CA6N steel and the bottom bar is S33425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
45
Fatigue Strength, MPa 640
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
79
Tensile Strength: Ultimate (UTS), MPa 1080
580
Tensile Strength: Yield (Proof), MPa 1060
230

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
500
Maximum Temperature: Mechanical, °C 740
1100
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
14
Thermal Expansion, µm/m-K 9.9
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
27
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.5
5.1
Embodied Energy, MJ/kg 35
71
Embodied Water, L/kg 110
190

Common Calculations

PREN (Pitting Resistance) 12
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
210
Resilience: Unit (Modulus of Resilience), kJ/m3 2900
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 38
20
Strength to Weight: Bending, points 30
19
Thermal Diffusivity, mm2/s 6.1
3.7
Thermal Shock Resistance, points 40
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 10.5 to 12.5
21 to 23
Iron (Fe), % 77.9 to 83.5
47.2 to 56.7
Manganese (Mn), % 0 to 0.5
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 6.0 to 8.0
20 to 23
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0
0.15 to 0.6