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AISI 304L Stainless Steel vs. ACI-ASTM CD6MN Steel

Both AISI 304L stainless steel and ACI-ASTM CD6MN steel are iron alloys. They have a moderately high 91% 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 AISI 304L stainless steel and the bottom bar is ACI-ASTM CD6MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 6.7 to 46
28
Fatigue Strength, MPa 170 to 430
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 540 to 1160
730
Tensile Strength: Yield (Proof), MPa 190 to 870
510

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 540
1100
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 16
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.1
3.4
Embodied Energy, MJ/kg 44
48
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 20
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 240
180
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 1900
650
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19 to 41
26
Strength to Weight: Bending, points 19 to 31
23
Thermal Diffusivity, mm2/s 4.2
4.4
Thermal Shock Resistance, points 12 to 25
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 18 to 20
24 to 27
Iron (Fe), % 65 to 74
62.1 to 70.1
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 8.0 to 12
4.0 to 6.0
Nitrogen (N), % 0 to 0.1
0.15 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.040