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SAE-AISI 4130 Steel vs. EN 1.1151 Steel

Both SAE-AISI 4130 steel and EN 1.1151 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI 4130 steel and the bottom bar is EN 1.1151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 300
130 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13 to 26
21 to 26
Fatigue Strength, MPa 320 to 660
180 to 240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 340 to 640
300 to 330
Tensile Strength: Ultimate (UTS), MPa 530 to 1040
460 to 520
Tensile Strength: Yield (Proof), MPa 440 to 980
240 to 340

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 43
50
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 50
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 180
98 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 2550
160 to 310
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19 to 37
16 to 18
Strength to Weight: Bending, points 19 to 29
17 to 18
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 16 to 31
15 to 16

Alloy Composition

Carbon (C), % 0.28 to 0.33
0.17 to 0.24
Chromium (Cr), % 0.8 to 1.1
0 to 0.4
Iron (Fe), % 97.3 to 98.2
97.7 to 99.43
Manganese (Mn), % 0.4 to 0.6
0.4 to 0.7
Molybdenum (Mo), % 0.15 to 0.25
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035

Comparable Variants