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SAE-AISI 1065 Steel vs. EN 1.1121 Steel

Both SAE-AISI 1065 steel and EN 1.1121 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1065 steel and the bottom bar is EN 1.1121 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 230
120
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
28
Fatigue Strength, MPa 270 to 340
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 430 to 470
260
Tensile Strength: Ultimate (UTS), MPa 710 to 780
400
Tensile Strength: Yield (Proof), MPa 430 to 550
210

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
53
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 46
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 90
93
Resilience: Unit (Modulus of Resilience), kJ/m3 490 to 820
110
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 28
14
Strength to Weight: Bending, points 23 to 24
15
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 25 to 27
13

Alloy Composition

Carbon (C), % 0.6 to 0.7
0.070 to 0.13
Iron (Fe), % 98.3 to 98.8
98.8 to 99.63
Manganese (Mn), % 0.6 to 0.9
0.3 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0 to 0.050
0 to 0.035