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ACI-ASTM CA40F Steel vs. EN 1.4104 Stainless Steel

Both ACI-ASTM CA40F steel and EN 1.4104 stainless steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 31 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 ACI-ASTM CA40F steel and the bottom bar is EN 1.4104 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13
11 to 23
Fatigue Strength, MPa 320
230 to 310
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 770
630 to 750
Tensile Strength: Yield (Proof), MPa 550
350 to 560

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 750
860
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
8.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 28
30
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 14
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
77 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 790
310 to 800
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
23 to 27
Strength to Weight: Bending, points 24
21 to 24
Thermal Diffusivity, mm2/s 7.2
6.7
Thermal Shock Resistance, points 28
22 to 27

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.1 to 0.17
Chromium (Cr), % 11.5 to 14
15.5 to 17.5
Iron (Fe), % 81.6 to 88.3
78.8 to 84.1
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0.2 to 0.6
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0.2 to 0.4
0.15 to 0.35