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EN 1.4945 Stainless Steel vs. ACI-ASTM CD6MN Steel

Both EN 1.4945 stainless steel and ACI-ASTM CD6MN steel are iron alloys. They have 84% 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 1.4945 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, % 19 to 34
28
Fatigue Strength, MPa 230 to 350
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 640 to 740
730
Tensile Strength: Yield (Proof), MPa 290 to 550
510

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 520
450
Maximum Temperature: Mechanical, °C 920
1100
Melting Completion (Liquidus), °C 1490
1440
Melting Onset (Solidus), °C 1440
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 30
17
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.0
3.4
Embodied Energy, MJ/kg 73
48
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 23
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
180
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
650
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 25
26
Strength to Weight: Bending, points 20 to 22
23
Thermal Diffusivity, mm2/s 3.7
4.4
Thermal Shock Resistance, points 14 to 16
20

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.060
Chromium (Cr), % 15.5 to 17.5
24 to 27
Iron (Fe), % 57.9 to 65.7
62.1 to 70.1
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 15.5 to 17.5
4.0 to 6.0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0.15 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.040
Tungsten (W), % 2.5 to 3.5
0