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ACI-ASTM CD6MN Steel vs. S21460 Stainless Steel

Both ACI-ASTM CD6MN steel and S21460 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD6MN steel and the bottom bar is S21460 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
46
Fatigue Strength, MPa 370
390
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 730
830
Tensile Strength: Yield (Proof), MPa 510
430

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
920
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1390
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
18

Otherwise Unclassified Properties

Base Metal Price, % relative 17
14
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 3.4
3.0
Embodied Energy, MJ/kg 48
43
Embodied Water, L/kg 170
160

Common Calculations

PREN (Pitting Resistance) 36
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
320
Resilience: Unit (Modulus of Resilience), kJ/m3 650
460
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
30
Strength to Weight: Bending, points 23
26
Thermal Shock Resistance, points 20
17

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.12
Chromium (Cr), % 24 to 27
17 to 19
Iron (Fe), % 62.1 to 70.1
57.3 to 63.7
Manganese (Mn), % 0 to 1.0
14 to 16
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 4.0 to 6.0
5.0 to 6.0
Nitrogen (N), % 0.15 to 0.25
0.35 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030