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SAE-AISI 1151 Steel vs. EN 1.1147 Steel

Both SAE-AISI 1151 steel and EN 1.1147 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1151 steel and the bottom bar is EN 1.1147 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 220
110 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
12 to 17
Fatigue Strength, MPa 260 to 410
180 to 250
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34 to 40
63 to 73
Shear Modulus, GPa 72
73
Shear Strength, MPa 430 to 480
280
Tensile Strength: Ultimate (UTS), MPa 710 to 800
390 to 470
Tensile Strength: Yield (Proof), MPa 390 to 660
280 to 370

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
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.1

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 18
18
Embodied Water, L/kg 46
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 100
40 to 73
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1170
210 to 370
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 28
14 to 17
Strength to Weight: Bending, points 22 to 24
15 to 17
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 22 to 25
12 to 15

Alloy Composition

Carbon (C), % 0.48 to 0.55
0.15 to 0.19
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98.3 to 98.7
98.3 to 99.25
Manganese (Mn), % 0.7 to 1.0
0.6 to 0.9
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0.080 to 0.13
0 to 0.025

Comparable Variants