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EN 1.6368 Steel vs. EN 1.4417 Stainless Steel

Both EN 1.6368 steel and EN 1.4417 stainless steel are iron alloys. They have 65% 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 EN 1.4417 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
25
Fatigue Strength, MPa 310 to 330
380
Impact Strength: V-Notched Charpy, J 43 to 46
56
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 660 to 690
730
Tensile Strength: Yield (Proof), MPa 460 to 490
550

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
17
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
21
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
4.1
Embodied Energy, MJ/kg 22
57
Embodied Water, L/kg 53
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 650
730
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 24
26
Strength to Weight: Bending, points 21 to 22
23
Thermal Diffusivity, mm2/s 11
4.6
Thermal Shock Resistance, points 20
20

Alloy Composition

Aluminum (Al), % 0.015 to 0.040
0
Carbon (C), % 0 to 0.17
0 to 0.030
Chromium (Cr), % 0 to 0.3
24 to 26
Copper (Cu), % 0.5 to 0.8
0 to 1.0
Iron (Fe), % 95.1 to 97.2
56.7 to 66.9
Manganese (Mn), % 0.8 to 1.2
0 to 1.5
Molybdenum (Mo), % 0.25 to 0.5
3.0 to 4.0
Nickel (Ni), % 1.0 to 1.3
6.0 to 8.5
Niobium (Nb), % 0.015 to 0.045
0
Nitrogen (N), % 0 to 0.020
0.15 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.25 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.020
Tungsten (W), % 0
0 to 1.0