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EN 1.4919 Stainless Steel vs. SAE-AISI 8620 Steel

Both EN 1.4919 stainless steel and SAE-AISI 8620 steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 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 EN 1.4919 stainless steel and the bottom bar is SAE-AISI 8620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
150 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
13 to 31
Fatigue Strength, MPa 200
270 to 360
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 400
340 to 420
Tensile Strength: Ultimate (UTS), MPa 590
520 to 690
Tensile Strength: Yield (Proof), MPa 230
360 to 570

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 950
410
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
39
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.5
Embodied Energy, MJ/kg 52
20
Embodied Water, L/kg 150
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
86 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 130
340 to 880
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
18 to 24
Strength to Weight: Bending, points 20
18 to 22
Thermal Diffusivity, mm2/s 4.3
10
Thermal Shock Resistance, points 13
15 to 20

Alloy Composition

Boron (B), % 0.0015 to 0.0050
0
Carbon (C), % 0.040 to 0.080
0.18 to 0.23
Chromium (Cr), % 16.5 to 18.5
0.4 to 0.6
Iron (Fe), % 62.8 to 71.5
96.9 to 98
Manganese (Mn), % 0 to 2.0
0.7 to 0.9
Molybdenum (Mo), % 2.0 to 2.5
0.15 to 0.25
Nickel (Ni), % 10 to 13
0.4 to 0.7
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040