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ACI-ASTM CD3MN Steel vs. EN 1.4905 Stainless Steel

Both ACI-ASTM CD3MN steel and EN 1.4905 stainless steel are iron alloys. Both are furnished in the normalized and tempered condition. They have 78% 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 ACI-ASTM CD3MN steel and the bottom bar is EN 1.4905 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
19
Fatigue Strength, MPa 340
330
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 710
740
Tensile Strength: Yield (Proof), MPa 460
510

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 430
380
Maximum Temperature: Mechanical, °C 1060
660
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1400
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
26
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 18
9.5
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.6
2.8
Embodied Energy, MJ/kg 50
40
Embodied Water, L/kg 160
90

Common Calculations

PREN (Pitting Resistance) 35
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
130
Resilience: Unit (Modulus of Resilience), kJ/m3 530
680
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
26
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 4.3
7.0
Thermal Shock Resistance, points 20
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Boron (B), % 0
0.00050 to 0.0050
Carbon (C), % 0 to 0.030
0.090 to 0.13
Chromium (Cr), % 21 to 23.5
8.5 to 9.5
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 62.6 to 71.9
86.2 to 88.8
Manganese (Mn), % 0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 2.5 to 3.5
0.9 to 1.1
Nickel (Ni), % 4.5 to 6.5
0.1 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0.1 to 0.3
0.050 to 0.090
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.010
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0
0.18 to 0.25