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SAE-AISI 1345 Steel vs. EN 1.0540 Steel

Both SAE-AISI 1345 steel and EN 1.0540 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI 1345 steel and the bottom bar is EN 1.0540 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 23
14
Fatigue Strength, MPa 230 to 390
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Shear Strength, MPa 370 to 440
400
Tensile Strength: Ultimate (UTS), MPa 590 to 730
660
Tensile Strength: Yield (Proof), MPa 330 to 620
330

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
48
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 48
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 120
75
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 1040
290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 26
23
Strength to Weight: Bending, points 20 to 23
22
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 19 to 23
21

Alloy Composition

Carbon (C), % 0.43 to 0.48
0.47 to 0.55
Chromium (Cr), % 0
0 to 0.4
Iron (Fe), % 97.2 to 97.8
97.2 to 98.9
Manganese (Mn), % 1.6 to 1.9
0.6 to 0.9
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.045