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EN 1.4901 Stainless Steel vs. ACI-ASTM CD6MN Steel

Both EN 1.4901 stainless steel and ACI-ASTM CD6MN steel are iron alloys. Both are furnished in the normalized and tempered condition. They have 77% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4901 stainless steel and the bottom bar is ACI-ASTM CD6MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
28
Fatigue Strength, MPa 310
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 740
730
Tensile Strength: Yield (Proof), MPa 490
510

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Corrosion, °C 380
450
Maximum Temperature: Mechanical, °C 650
1100
Melting Completion (Liquidus), °C 1490
1440
Melting Onset (Solidus), °C 1450
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.8
3.4
Embodied Energy, MJ/kg 40
48
Embodied Water, L/kg 89
170

Common Calculations

PREN (Pitting Resistance) 14
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 620
650
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
26
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 6.9
4.4
Thermal Shock Resistance, points 23
20

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0 to 0.060
Chromium (Cr), % 8.5 to 9.5
24 to 27
Iron (Fe), % 85.8 to 89.1
62.1 to 70.1
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.3 to 0.6
1.8 to 2.5
Nickel (Ni), % 0 to 0.4
4.0 to 6.0
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0.15 to 0.25
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0