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SAE-AISI 4340 Steel vs. EN 1.1165 Cast Steel

Both SAE-AISI 4340 steel and EN 1.1165 cast steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4340 steel and the bottom bar is EN 1.1165 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 22
11 to 20
Fatigue Strength, MPa 330 to 740
200 to 380
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 690 to 1280
600 to 780
Tensile Strength: Yield (Proof), MPa 470 to 1150
290 to 620

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 22
19
Embodied Water, L/kg 53
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 170
81 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 590 to 3490
230 to 1010
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 45
21 to 28
Strength to Weight: Bending, points 22 to 33
20 to 24
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 20 to 38
19 to 25

Alloy Composition

Carbon (C), % 0.38 to 0.43
0.25 to 0.32
Chromium (Cr), % 0.7 to 0.9
0
Iron (Fe), % 95.1 to 96.3
97.2 to 98.6
Manganese (Mn), % 0.6 to 0.8
1.2 to 1.8
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 1.7 to 2.0
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030

Comparable Variants