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SAE-AISI 4320 Steel vs. EN 1.4613 Stainless Steel

Both SAE-AISI 4320 steel and EN 1.4613 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4320 steel and the bottom bar is EN 1.4613 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 240
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21 to 29
21
Fatigue Strength, MPa 320
180
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Shear Strength, MPa 370 to 500
330
Tensile Strength: Ultimate (UTS), MPa 570 to 790
530
Tensile Strength: Yield (Proof), MPa 430 to 460
280

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
1050
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
19
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.6
Embodied Energy, MJ/kg 22
38
Embodied Water, L/kg 52
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
91
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 560
190
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20 to 28
19
Strength to Weight: Bending, points 19 to 24
19
Thermal Diffusivity, mm2/s 13
5.2
Thermal Shock Resistance, points 19 to 27
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0.17 to 0.22
0 to 0.030
Chromium (Cr), % 0.4 to 0.6
22 to 25
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 95.8 to 97
70.3 to 77.8
Manganese (Mn), % 0.45 to 0.65
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.3
0 to 0.5
Nickel (Ni), % 1.7 to 2.0
0 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.050
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.050
Titanium (Ti), % 0
0.2 to 1.0