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ACI-ASTM CA40 Steel vs. EN 1.4986 Stainless Steel

Both ACI-ASTM CA40 steel and EN 1.4986 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 32 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 1.4986 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10
18
Fatigue Strength, MPa 460
350
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 910
750
Tensile Strength: Yield (Proof), MPa 860
560

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
520
Maximum Temperature: Mechanical, °C 750
940
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1500
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
25
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
4.8
Embodied Energy, MJ/kg 28
67
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 14
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 33
26
Strength to Weight: Bending, points 27
23
Thermal Diffusivity, mm2/s 6.7
4.0
Thermal Shock Resistance, points 33
16

Alloy Composition

Boron (B), % 0
0.050 to 0.1
Carbon (C), % 0.2 to 0.4
0.040 to 0.1
Chromium (Cr), % 11.5 to 14
15.5 to 17.5
Iron (Fe), % 81.5 to 88.3
59.4 to 66.6
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
1.6 to 2.0
Nickel (Ni), % 0 to 1.0
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
0.3 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030