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EN 1.4374 Stainless Steel vs. ACI-ASTM CA40F Steel

Both EN 1.4374 stainless steel and ACI-ASTM CA40F steel are iron alloys. They have 80% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4374 stainless steel and the bottom bar is ACI-ASTM CA40F steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
13
Fatigue Strength, MPa 340
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 800
770
Tensile Strength: Yield (Proof), MPa 400
550

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 920
750
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
27
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
7.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.9
2.0
Embodied Energy, MJ/kg 42
28
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 23
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
94
Resilience: Unit (Modulus of Resilience), kJ/m3 400
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
28
Strength to Weight: Bending, points 25
24
Thermal Diffusivity, mm2/s 4.0
7.2
Thermal Shock Resistance, points 17
28

Alloy Composition

Carbon (C), % 0.050 to 0.1
0.2 to 0.4
Chromium (Cr), % 17.5 to 18.5
11.5 to 14
Copper (Cu), % 0 to 0.4
0
Iron (Fe), % 63.5 to 67.9
81.6 to 88.3
Manganese (Mn), % 9.0 to 10
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 5.0 to 6.0
0 to 1.0
Nitrogen (N), % 0.25 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 1.5
Sulfur (S), % 0 to 0.030
0.2 to 0.4