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SAE-AISI 1141 Steel vs. EN 1.5681 Steel

Both SAE-AISI 1141 steel and EN 1.5681 steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1141 steel and the bottom bar is EN 1.5681 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 220
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
20
Fatigue Strength, MPa 270 to 430
300
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 740 to 810
630
Tensile Strength: Yield (Proof), MPa 400 to 700
430

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
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
48
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 12
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.9
Embodied Energy, MJ/kg 19
25
Embodied Water, L/kg 47
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1290
490
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 29
22
Strength to Weight: Bending, points 23 to 25
21
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 24 to 26
19

Alloy Composition

Carbon (C), % 0.37 to 0.45
0.060 to 0.12
Iron (Fe), % 97.7 to 98.2
92.9 to 94.9
Manganese (Mn), % 1.4 to 1.7
0.5 to 0.8
Nickel (Ni), % 0
4.5 to 5.5
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0.080 to 0.13
0 to 0.020