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SAE-AISI 4820 Steel vs. EN 1.4510 Stainless Steel

Both SAE-AISI 4820 steel and EN 1.4510 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 82% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4820 steel and the bottom bar is EN 1.4510 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
26
Fatigue Strength, MPa 260
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 360
330
Tensile Strength: Ultimate (UTS), MPa 570
510
Tensile Strength: Yield (Proof), MPa 370
270

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 410
870
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
25
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
8.5
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.8
2.2
Embodied Energy, MJ/kg 24
32
Embodied Water, L/kg 53
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 370
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 14
6.7
Thermal Shock Resistance, points 19
17

Alloy Composition

Carbon (C), % 0.18 to 0.23
0 to 0.050
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 94.6 to 95.7
79.1 to 83.9
Manganese (Mn), % 0.5 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 3.3 to 3.8
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.8