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ACI-ASTM CA40 Steel vs. EN 1.4006 Stainless Steel

Both ACI-ASTM CA40 steel and EN 1.4006 stainless steel are iron alloys. They have a very high 99% 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 CA40 steel and the bottom bar is EN 1.4006 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10
16 to 23
Fatigue Strength, MPa 460
150 to 300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 910
590 to 750
Tensile Strength: Yield (Proof), MPa 860
230 to 510

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 750
740
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1500
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
30
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
7.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
1.9
Embodied Energy, MJ/kg 28
27
Embodied Water, L/kg 100
100

Common Calculations

PREN (Pitting Resistance) 14
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
99 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
140 to 660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
21 to 27
Strength to Weight: Bending, points 27
20 to 24
Thermal Diffusivity, mm2/s 6.7
8.1
Thermal Shock Resistance, points 33
21 to 26

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.080 to 0.15
Chromium (Cr), % 11.5 to 14
11.5 to 13.5
Iron (Fe), % 81.5 to 88.3
83.1 to 88.4
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0 to 0.75
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015