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EN 1.5508 Steel vs. SAE-AISI 1065 Steel

Both EN 1.5508 steel and SAE-AISI 1065 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.5508 steel and the bottom bar is SAE-AISI 1065 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
210 to 230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 20
11 to 14
Fatigue Strength, MPa 210 to 320
270 to 340
Poisson's Ratio 0.29
0.29
Reduction in Area, % 62 to 74
34 to 51
Shear Modulus, GPa 73
72
Shear Strength, MPa 300 to 360
430 to 470
Tensile Strength: Ultimate (UTS), MPa 420 to 1460
710 to 780
Tensile Strength: Yield (Proof), MPa 310 to 490
430 to 550

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 51
51
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.8
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 47
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
74 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 640
490 to 820
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15 to 52
25 to 28
Strength to Weight: Bending, points 16 to 36
23 to 24
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 12 to 43
25 to 27

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.25
0.6 to 0.7
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.9 to 99.199
98.3 to 98.8
Manganese (Mn), % 0.6 to 0.9
0.6 to 0.9
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0 to 0.025
0 to 0.050

Comparable Variants