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ACI-ASTM CA6N Steel vs. S32803 Stainless Steel

Both ACI-ASTM CA6N steel and S32803 stainless steel are iron alloys. They have 81% 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 S32803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 17
18
Fatigue Strength, MPa 640
350
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
81
Tensile Strength: Ultimate (UTS), MPa 1080
680
Tensile Strength: Yield (Proof), MPa 1060
560

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
510
Maximum Temperature: Mechanical, °C 740
1100
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 23
16
Thermal Expansion, µm/m-K 9.9
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
19
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.5
3.7
Embodied Energy, MJ/kg 35
53
Embodied Water, L/kg 110
180

Common Calculations

PREN (Pitting Resistance) 12
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
120
Resilience: Unit (Modulus of Resilience), kJ/m3 2900
760
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 38
25
Strength to Weight: Bending, points 30
22
Thermal Diffusivity, mm2/s 6.1
4.4
Thermal Shock Resistance, points 40
22

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.015
Chromium (Cr), % 10.5 to 12.5
28 to 29
Iron (Fe), % 77.9 to 83.5
62.9 to 67.1
Manganese (Mn), % 0 to 0.5
0 to 0.5
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 6.0 to 8.0
3.0 to 4.0
Niobium (Nb), % 0
0.15 to 0.5
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.55
Sulfur (S), % 0 to 0.020
0 to 0.0035