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ACI-ASTM CC50 Steel vs. EN 1.4309 Stainless Steel

Both ACI-ASTM CC50 steel and EN 1.4309 stainless steel are iron alloys. They have a moderately high 91% 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 1.4309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
140
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
490

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
960
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
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 14
16
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.1
Embodied Energy, MJ/kg 39
45
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 28
21
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 16
18
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 4.5
4.1
Thermal Shock Resistance, points 14
11

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.030
Chromium (Cr), % 26 to 30
18 to 20
Iron (Fe), % 62.9 to 74
64.2 to 73
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 0 to 4.0
9.0 to 12
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.5
0 to 1.5
Sulfur (S), % 0 to 0.040
0 to 0.025