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EN 1.4123 Stainless Steel vs. ACI-ASTM CA15 Steel

Both EN 1.4123 stainless steel and ACI-ASTM CA15 steel are iron alloys. They have a very high 95% 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 EN 1.4123 stainless steel and the bottom bar is ACI-ASTM CA15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 720 to 810
700

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 840
750
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1500
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 23
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
7.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 4.2
2.0
Embodied Energy, MJ/kg 62
28
Embodied Water, L/kg 120
100

Common Calculations

PREN (Pitting Resistance) 24
14
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 29
25
Strength to Weight: Bending, points 23 to 25
23
Thermal Diffusivity, mm2/s 6.3
6.7
Thermal Shock Resistance, points 26 to 29
26

Alloy Composition

Carbon (C), % 0.35 to 0.5
0 to 0.15
Chromium (Cr), % 14 to 16.5
11.5 to 14
Iron (Fe), % 76.7 to 84.6
81.8 to 88.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 1.0 to 2.5
0 to 0.5
Nickel (Ni), % 0 to 0.5
0 to 1.0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 0 to 1.5
0