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EN 1.6368 Steel vs. S44401 Stainless Steel

Both EN 1.6368 steel and S44401 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.6368 steel and the bottom bar is S44401 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
21
Fatigue Strength, MPa 310 to 330
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 410 to 430
300
Tensile Strength: Ultimate (UTS), MPa 660 to 690
480
Tensile Strength: Yield (Proof), MPa 460 to 490
300

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 410
930
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
22
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
12
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.9
Embodied Energy, MJ/kg 22
40
Embodied Water, L/kg 53
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
90
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 650
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 24
17
Strength to Weight: Bending, points 21 to 22
18
Thermal Diffusivity, mm2/s 11
5.9
Thermal Shock Resistance, points 20
17

Alloy Composition

Aluminum (Al), % 0.015 to 0.040
0
Carbon (C), % 0 to 0.17
0 to 0.025
Chromium (Cr), % 0 to 0.3
17.5 to 19.5
Copper (Cu), % 0.5 to 0.8
0
Iron (Fe), % 95.1 to 97.2
75.1 to 80.6
Manganese (Mn), % 0.8 to 1.2
0 to 1.0
Molybdenum (Mo), % 0.25 to 0.5
1.8 to 2.5
Nickel (Ni), % 1.0 to 1.3
0 to 1.0
Niobium (Nb), % 0.015 to 0.045
0
Nitrogen (N), % 0 to 0.020
0 to 0.035
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.25 to 0.5
0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8