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EN 1.4828 Stainless Steel vs. SAE-AISI 4718 Steel

Both EN 1.4828 stainless steel and SAE-AISI 4718 steel are iron alloys. They have 67% 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 EN 1.4828 stainless steel and the bottom bar is SAE-AISI 4718 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 33
24
Fatigue Strength, MPa 200
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 430
330
Tensile Strength: Ultimate (UTS), MPa 650
510
Tensile Strength: Yield (Proof), MPa 260
370

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1000
420
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 17
3.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.4
1.6
Embodied Energy, MJ/kg 48
21
Embodied Water, L/kg 150
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 170
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 4.0
10
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.2
0.16 to 0.21
Chromium (Cr), % 19 to 21
0.35 to 0.55
Iron (Fe), % 61.1 to 68.5
96.3 to 97.4
Manganese (Mn), % 0 to 2.0
0.7 to 0.9
Molybdenum (Mo), % 0
0.3 to 0.4
Nickel (Ni), % 11 to 13
0.9 to 1.2
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 1.5 to 2.5
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040