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EN 1.0565 Steel vs. SAE-AISI 4340M Steel

Both EN 1.0565 steel and SAE-AISI 4340M steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 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 EN 1.0565 steel and the bottom bar is SAE-AISI 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
710
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
6.0
Fatigue Strength, MPa 260
690
Impact Strength: V-Notched Charpy, J 71
18
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 350
1360
Tensile Strength: Ultimate (UTS), MPa 550
2340
Tensile Strength: Yield (Proof), MPa 360
1240

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
430
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
38
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
3.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.9
Embodied Energy, MJ/kg 22
26
Embodied Water, L/kg 49
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 340
4120
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
84
Strength to Weight: Bending, points 19
51
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 17
70

Alloy Composition

Aluminum (Al), % 0 to 0.060
0
Carbon (C), % 0 to 0.2
0.38 to 0.43
Chromium (Cr), % 0 to 0.3
0.7 to 1.0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.2 to 99
93.3 to 94.8
Manganese (Mn), % 0.9 to 1.7
0.65 to 0.9
Molybdenum (Mo), % 0 to 0.080
0.35 to 0.45
Nickel (Ni), % 0 to 0.5
1.7 to 2.0
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.012
Silicon (Si), % 0 to 0.5
1.5 to 1.8
Sulfur (S), % 0 to 0.015
0 to 0.012
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.1
0.050 to 0.1