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EN 1.4729 Stainless Steel vs. ACI-ASTM CE3MN Steel

Both EN 1.4729 stainless steel and ACI-ASTM CE3MN steel are iron alloys. They have 77% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4729 stainless steel and the bottom bar is ACI-ASTM CE3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 15
20
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
81

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 850
1100
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
21
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.1
4.2
Embodied Energy, MJ/kg 29
58
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 14
43
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Thermal Diffusivity, mm2/s 6.5
4.1

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.030
Chromium (Cr), % 12 to 14
24 to 26
Iron (Fe), % 80.4 to 86.7
58.1 to 65.9
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
4.0 to 5.0
Nickel (Ni), % 0 to 1.0
6.0 to 8.0
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.040