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EN 1.4855 Stainless Steel vs. ACI-ASTM CA40 Steel

Both EN 1.4855 stainless steel and ACI-ASTM CA40 steel are iron alloys. They have 62% of their average alloy composition in common. There are 30 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 1.4855 stainless steel and the bottom bar is ACI-ASTM CA40 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
310
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 4.6
10
Fatigue Strength, MPa 120
460
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 500
910
Tensile Strength: Yield (Proof), MPa 250
860

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Corrosion, °C 610
390
Maximum Temperature: Mechanical, °C 1050
750
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1350
1500
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
25
Thermal Expansion, µm/m-K 16
10

Otherwise Unclassified Properties

Base Metal Price, % relative 34
7.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 5.9
2.0
Embodied Energy, MJ/kg 85
28
Embodied Water, L/kg 200
100

Common Calculations

PREN (Pitting Resistance) 25
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
89
Resilience: Unit (Modulus of Resilience), kJ/m3 160
1910
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
33
Strength to Weight: Bending, points 18
27
Thermal Diffusivity, mm2/s 3.7
6.7
Thermal Shock Resistance, points 11
33

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.2 to 0.4
Chromium (Cr), % 23 to 25
11.5 to 14
Iron (Fe), % 42.6 to 51.9
81.5 to 88.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 23 to 25
0 to 1.0
Niobium (Nb), % 0.8 to 1.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040