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EN 1.4466 Stainless Steel vs. SAE-AISI 8637 Steel

Both EN 1.4466 stainless steel and SAE-AISI 8637 steel are iron alloys. They have 52% 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 1.4466 stainless steel and the bottom bar is SAE-AISI 8637 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 42
23
Fatigue Strength, MPa 250
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 440
340
Tensile Strength: Ultimate (UTS), MPa 640
540
Tensile Strength: Yield (Proof), MPa 280
360

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
38
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 28
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.0
1.5
Embodied Energy, MJ/kg 70
20
Embodied Water, L/kg 200
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
110
Resilience: Unit (Modulus of Resilience), kJ/m3 200
340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 3.7
10
Thermal Shock Resistance, points 14
18

Alloy Composition

Carbon (C), % 0 to 0.020
0.35 to 0.4
Chromium (Cr), % 24 to 26
0.4 to 0.6
Iron (Fe), % 45.6 to 52.9
96.6 to 97.8
Manganese (Mn), % 0 to 2.0
0.75 to 1.0
Molybdenum (Mo), % 2.0 to 2.5
0.15 to 0.25
Nickel (Ni), % 21 to 23
0.4 to 0.7
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.7
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040