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ACI-ASTM CA40 Steel vs. EN 1.4710 Stainless Steel

Both ACI-ASTM CA40 steel and EN 1.4710 stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 1.4710 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
260
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10
20
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
360
Maximum Temperature: Mechanical, °C 750
750
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1500
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
24
Thermal Expansion, µm/m-K 10
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
6.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
7.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
5.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
1.8
Embodied Energy, MJ/kg 28
24
Embodied Water, L/kg 100
76

Common Calculations

PREN (Pitting Resistance) 14
7.2
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Thermal Diffusivity, mm2/s 6.7
6.5

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.2 to 0.35
Chromium (Cr), % 11.5 to 14
6.0 to 8.0
Iron (Fe), % 81.5 to 88.3
87.4 to 92.3
Manganese (Mn), % 0 to 1.0
0.5 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.15
Nickel (Ni), % 0 to 1.0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.5
1.0 to 2.5
Sulfur (S), % 0 to 0.040
0 to 0.030