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ACI-ASTM CA40 Steel vs. EN 1.4517 Stainless Steel

Both ACI-ASTM CA40 steel and EN 1.4517 stainless steel are iron alloys. They have 75% 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 1.4517 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10
25
Fatigue Strength, MPa 460
380
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 910
730
Tensile Strength: Yield (Proof), MPa 860
550

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 750
1100
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
17
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
20
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
3.8
Embodied Energy, MJ/kg 28
53
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 14
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
170
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
740
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
26
Strength to Weight: Bending, points 27
23
Thermal Diffusivity, mm2/s 6.7
4.6
Thermal Shock Resistance, points 33
20

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.030
Chromium (Cr), % 11.5 to 14
24.5 to 26.5
Copper (Cu), % 0
2.8 to 3.5
Iron (Fe), % 81.5 to 88.3
56.7 to 65.1
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
2.5 to 3.5
Nickel (Ni), % 0 to 1.0
5.0 to 7.0
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.025