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SAE-AISI 1023 Steel vs. EN 1.5521 Steel

Both SAE-AISI 1023 steel and EN 1.5521 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1023 steel and the bottom bar is EN 1.5521 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 140
130 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 29
11 to 21
Fatigue Strength, MPa 180 to 270
210 to 310
Poisson's Ratio 0.29
0.29
Reduction in Area, % 46 to 56
59 to 72
Shear Modulus, GPa 73
73
Shear Strength, MPa 280 to 300
310 to 360
Tensile Strength: Ultimate (UTS), MPa 430 to 480
430 to 1390
Tensile Strength: Yield (Proof), MPa 240 to 410
300 to 490

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 53
51
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 45
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 100
44 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 450
250 to 630
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15 to 17
15 to 49
Strength to Weight: Bending, points 16 to 17
16 to 35
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 14 to 15
13 to 41

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.2 to 0.25
0.16 to 0.2
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 99.06 to 99.5
98 to 98.9
Manganese (Mn), % 0.3 to 0.6
0.9 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0 to 0.050
0 to 0.025

Comparable Variants