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SAE-AISI 4320 Steel vs. EN 1.0535 Steel

Both SAE-AISI 4320 steel and EN 1.0535 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI 4320 steel and the bottom bar is EN 1.0535 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 240
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21 to 29
12
Fatigue Strength, MPa 320
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 370 to 500
420
Tensile Strength: Ultimate (UTS), MPa 570 to 790
690
Tensile Strength: Yield (Proof), MPa 430 to 460
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
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
48
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 22
19
Embodied Water, L/kg 52
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
69
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 560
310
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 28
25
Strength to Weight: Bending, points 19 to 24
22
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 19 to 27
22

Alloy Composition

Carbon (C), % 0.17 to 0.22
0.52 to 0.6
Chromium (Cr), % 0.4 to 0.6
0 to 0.4
Iron (Fe), % 95.8 to 97
97.1 to 98.9
Manganese (Mn), % 0.45 to 0.65
0.6 to 0.9
Molybdenum (Mo), % 0.2 to 0.3
0 to 0.1
Nickel (Ni), % 1.7 to 2.0
0 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.045