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EN 1.7366 Steel vs. S15500 Stainless Steel

Both EN 1.7366 steel and S15500 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 33 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 S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 210
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 19
6.8 to 16
Fatigue Strength, MPa 160 to 320
350 to 650
Impact Strength: V-Notched Charpy, J 38
7.8 to 53
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
75
Shear Strength, MPa 290 to 440
540 to 870
Tensile Strength: Ultimate (UTS), MPa 460 to 710
890 to 1490
Tensile Strength: Yield (Proof), MPa 230 to 480
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 510
820
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.7
Embodied Energy, MJ/kg 23
39
Embodied Water, L/kg 69
130

Common Calculations

PREN (Pitting Resistance) 6.8
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 110
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 600
890 to 4460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 16 to 25
32 to 53
Strength to Weight: Bending, points 17 to 23
26 to 37
Thermal Diffusivity, mm2/s 11
4.6
Thermal Shock Resistance, points 13 to 20
30 to 50

Alloy Composition

Carbon (C), % 0 to 0.18
0 to 0.070
Chromium (Cr), % 4.0 to 6.0
14 to 15.5
Copper (Cu), % 0
2.5 to 4.5
Iron (Fe), % 91.9 to 95.3
71.9 to 79.9
Manganese (Mn), % 0.3 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
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