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EN 1.4404 Stainless Steel vs. EN 1.7366 Steel

Both EN 1.4404 stainless steel and EN 1.7366 steel are iron alloys. They have 73% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4404 stainless steel and the bottom bar is EN 1.7366 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
140 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 43
17 to 19
Fatigue Strength, MPa 220 to 320
160 to 320
Impact Strength: V-Notched Charpy, J 91 to 93
38
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 420 to 550
290 to 440
Tensile Strength: Ultimate (UTS), MPa 600 to 900
460 to 710
Tensile Strength: Yield (Proof), MPa 240 to 570
230 to 480

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 950
510
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
4.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.7
Embodied Energy, MJ/kg 52
23
Embodied Water, L/kg 150
69

Common Calculations

PREN (Pitting Resistance) 26
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 210
74 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
140 to 600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
16 to 25
Strength to Weight: Bending, points 20 to 26
17 to 23
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 13 to 20
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.18
Chromium (Cr), % 16.5 to 18.5
4.0 to 6.0
Iron (Fe), % 62.8 to 71.5
91.9 to 95.3
Manganese (Mn), % 0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 2.0 to 2.5
0.45 to 0.65
Nickel (Ni), % 10 to 13
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.015

Comparable Variants