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ACI-ASTM CD6MN Steel vs. EN 1.4618 Stainless Steel

Both ACI-ASTM CD6MN steel and EN 1.4618 stainless steel are iron alloys. They have 90% 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 CD6MN steel and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
51
Fatigue Strength, MPa 370
240 to 250
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 730
680 to 700
Tensile Strength: Yield (Proof), MPa 510
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 17
13
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.4
2.7
Embodied Energy, MJ/kg 48
39
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 36
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 650
160 to 170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
24 to 25
Strength to Weight: Bending, points 23
22 to 23
Thermal Diffusivity, mm2/s 4.4
4.0
Thermal Shock Resistance, points 20
15 to 16

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.1
Chromium (Cr), % 24 to 27
16.5 to 18.5
Copper (Cu), % 0
1.0 to 2.5
Iron (Fe), % 62.1 to 70.1
62.7 to 72.5
Manganese (Mn), % 0 to 1.0
5.5 to 9.5
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 4.0 to 6.0
4.5 to 5.5
Nitrogen (N), % 0.15 to 0.25
0 to 0.15
Phosphorus (P), % 0 to 0.040
0 to 0.070
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.010