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EN 1.7366 Steel vs. EN 1.4317 Stainless Steel

Both EN 1.7366 steel and EN 1.4317 stainless steel are iron alloys. They have 88% 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 1.7366 steel and the bottom bar is EN 1.4317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 19
17
Fatigue Strength, MPa 160 to 320
380
Impact Strength: V-Notched Charpy, J 38
56
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Tensile Strength: Ultimate (UTS), MPa 460 to 710
860
Tensile Strength: Yield (Proof), MPa 230 to 480
630

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 510
770
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
26
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.4
Embodied Energy, MJ/kg 23
33
Embodied Water, L/kg 69
110

Common Calculations

PREN (Pitting Resistance) 6.8
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 600
1010
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 16 to 25
31
Strength to Weight: Bending, points 17 to 23
26
Thermal Diffusivity, mm2/s 11
7.0
Thermal Shock Resistance, points 13 to 20
30

Alloy Composition

Carbon (C), % 0 to 0.18
0 to 0.060
Chromium (Cr), % 4.0 to 6.0
12 to 13.5
Iron (Fe), % 91.9 to 95.3
78.7 to 84.5
Manganese (Mn), % 0.3 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.45 to 0.65
0 to 0.7
Nickel (Ni), % 0
3.5 to 5.0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.025