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EN 1.4729 Stainless Steel vs. ACI-ASTM CC50 Steel

Both EN 1.4729 stainless steel and ACI-ASTM CC50 steel are iron alloys. They have 83% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (5, 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 CC50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
80

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 390
460
Maximum Temperature: Mechanical, °C 850
1100
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 490
490
Thermal Conductivity, W/m-K 24
17
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
14
Density, g/cm3 7.6
7.6
Embodied Carbon, kg CO2/kg material 2.1
2.7
Embodied Energy, MJ/kg 29
39
Embodied Water, L/kg 100
170

Common Calculations

PREN (Pitting Resistance) 14
28
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Thermal Diffusivity, mm2/s 6.5
4.5

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.5
Chromium (Cr), % 12 to 14
26 to 30
Iron (Fe), % 80.4 to 86.7
62.9 to 74
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0 to 4.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040