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SAE-AISI 5130 Steel vs. EN 1.1221 Steel

Both SAE-AISI 5130 steel and EN 1.1221 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 5130 steel and the bottom bar is EN 1.1221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 190
210 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 22
10 to 21
Fatigue Strength, MPa 230 to 330
240 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 310 to 390
450 to 520
Tensile Strength: Ultimate (UTS), MPa 500 to 640
730 to 870
Tensile Strength: Yield (Proof), MPa 330 to 530
390 to 550

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
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
48
Thermal Expansion, µm/m-K 12
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 50
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 98
67 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 750
410 to 800
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 23
26 to 31
Strength to Weight: Bending, points 18 to 21
23 to 26
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 16 to 20
23 to 28

Alloy Composition

Carbon (C), % 0.28 to 0.33
0.57 to 0.65
Chromium (Cr), % 0.8 to 1.1
0 to 0.4
Iron (Fe), % 97.2 to 98.1
97.1 to 98.8
Manganese (Mn), % 0.7 to 0.9
0.6 to 0.9
Molybdenum (Mo), % 0
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