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EN 1.7366 Steel vs. AISI 446 Stainless Steel

Both EN 1.7366 steel and AISI 446 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.7366 steel and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 210
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 19
23
Fatigue Strength, MPa 160 to 320
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
79
Shear Strength, MPa 290 to 440
360
Tensile Strength: Ultimate (UTS), MPa 460 to 710
570
Tensile Strength: Yield (Proof), MPa 230 to 480
300

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 510
1180
Melting Completion (Liquidus), °C 1460
1510
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 40
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.4
Embodied Energy, MJ/kg 23
35
Embodied Water, L/kg 69
150

Common Calculations

PREN (Pitting Resistance) 6.8
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 600
230
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 16 to 25
21
Strength to Weight: Bending, points 17 to 23
20
Thermal Diffusivity, mm2/s 11
4.6
Thermal Shock Resistance, points 13 to 20
19

Alloy Composition

Carbon (C), % 0 to 0.18
0 to 0.2
Chromium (Cr), % 4.0 to 6.0
23 to 27
Iron (Fe), % 91.9 to 95.3
69.2 to 77
Manganese (Mn), % 0.3 to 0.8
0 to 1.5
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
0 to 0.75
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030