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S44660 Stainless Steel vs. EN 1.6587 Steel

Both S44660 stainless steel and EN 1.6587 steel are iron alloys. They have 70% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S44660 stainless steel and the bottom bar is EN 1.6587 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
160 to 220
Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 660
520 to 1420

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
440
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
41
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 21
3.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 4.3
1.7
Embodied Energy, MJ/kg 61
22
Embodied Water, L/kg 180
58

Common Calculations

PREN (Pitting Resistance) 38
2.6
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
18 to 50
Strength to Weight: Bending, points 22
18 to 36
Thermal Diffusivity, mm2/s 4.5
11
Thermal Shock Resistance, points 21
15 to 42

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0 to 0.030
0.15 to 0.21
Chromium (Cr), % 25 to 28
1.5 to 1.8
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 60.4 to 71
94.4 to 96.4
Manganese (Mn), % 0 to 1.0
0.5 to 0.9
Molybdenum (Mo), % 3.0 to 4.0
0.25 to 0.35
Nickel (Ni), % 1.0 to 3.5
1.4 to 1.7
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0
0 to 0.0020
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.2 to 1.0
0