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ACI-ASTM CA40 Steel vs. EN 1.4423 Stainless Steel

Both ACI-ASTM CA40 steel and EN 1.4423 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40 steel and the bottom bar is EN 1.4423 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10
17
Fatigue Strength, MPa 460
380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 910
850
Tensile Strength: Yield (Proof), MPa 860
630

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 750
780
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1500
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
16
Thermal Expansion, µm/m-K 10
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
14
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
3.2
Embodied Energy, MJ/kg 28
43
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 14
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
130
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
30
Strength to Weight: Bending, points 27
25
Thermal Diffusivity, mm2/s 6.7
4.3
Thermal Shock Resistance, points 33
31

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.020
Chromium (Cr), % 11.5 to 14
11 to 13
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 81.5 to 88.3
73.8 to 80.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.3 to 2.8
Nickel (Ni), % 0 to 1.0
6.0 to 7.0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.0030