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ACI-ASTM CC50 Steel vs. EN 1.4640 Stainless Steel

Both ACI-ASTM CC50 steel and EN 1.4640 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CC50 steel and the bottom bar is EN 1.4640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
190 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 430
620 to 650

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
930
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
14
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 39
40
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 28
20
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 16
22 to 23
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 4.5
4.0
Thermal Shock Resistance, points 14
14 to 15

Alloy Composition

Carbon (C), % 0 to 0.5
0.030 to 0.080
Chromium (Cr), % 26 to 30
18 to 19
Copper (Cu), % 0
1.3 to 2.0
Iron (Fe), % 62.9 to 74
67.4 to 73.6
Manganese (Mn), % 0 to 1.0
1.5 to 4.0
Nickel (Ni), % 0 to 4.0
5.5 to 6.9
Nitrogen (N), % 0
0.030 to 0.11
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.015