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ACI-ASTM CA6N Steel vs. S21460 Stainless Steel

Both ACI-ASTM CA6N steel and S21460 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6N steel and the bottom bar is S21460 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
46
Fatigue Strength, MPa 640
390
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 1080
830
Tensile Strength: Yield (Proof), MPa 1060
430

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 740
920
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 9.9
18

Otherwise Unclassified Properties

Base Metal Price, % relative 11
14
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 2.5
3.0
Embodied Energy, MJ/kg 35
43
Embodied Water, L/kg 110
160

Common Calculations

PREN (Pitting Resistance) 12
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
320
Resilience: Unit (Modulus of Resilience), kJ/m3 2900
460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 38
30
Strength to Weight: Bending, points 30
26
Thermal Shock Resistance, points 40
17

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.12
Chromium (Cr), % 10.5 to 12.5
17 to 19
Iron (Fe), % 77.9 to 83.5
57.3 to 63.7
Manganese (Mn), % 0 to 0.5
14 to 16
Nickel (Ni), % 6.0 to 8.0
5.0 to 6.0
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.020
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030