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EN 1.1122 Steel vs. SAE-AISI 1046 Steel

Both EN 1.1122 steel and SAE-AISI 1046 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.1122 steel and the bottom bar is SAE-AISI 1046 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 130
190 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 21
14 to 17
Fatigue Strength, MPa 170 to 260
240 to 390
Poisson's Ratio 0.29
0.29
Reduction in Area, % 63 to 73
39 to 50
Shear Modulus, GPa 73
72
Shear Strength, MPa 240 to 290
410 to 450
Tensile Strength: Ultimate (UTS), MPa 340 to 460
660 to 740
Tensile Strength: Yield (Proof), MPa 240 to 370
370 to 610

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 12
11

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 46
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
91 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
360 to 990
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 16
23 to 26
Strength to Weight: Bending, points 14 to 17
22 to 23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 11 to 15
23 to 25

Alloy Composition

Carbon (C), % 0.080 to 0.12
0.43 to 0.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98.7 to 99.62
98.4 to 98.9
Manganese (Mn), % 0.3 to 0.6
0.7 to 1.0
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