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EN 1.7386 Steel vs. S44800 Stainless Steel

Both EN 1.7386 steel and S44800 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 32 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 1.7386 steel and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 200
190
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 18 to 21
23
Fatigue Strength, MPa 170 to 290
300
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
82
Shear Strength, MPa 340 to 410
370
Tensile Strength: Ultimate (UTS), MPa 550 to 670
590
Tensile Strength: Yield (Proof), MPa 240 to 440
450

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 600
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 26
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 10
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
3.8
Embodied Energy, MJ/kg 28
52
Embodied Water, L/kg 88
190

Common Calculations

PREN (Pitting Resistance) 12
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92 to 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 490
480
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20 to 24
21
Strength to Weight: Bending, points 19 to 22
20
Thermal Diffusivity, mm2/s 6.9
4.6
Thermal Shock Resistance, points 15 to 18
19

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.15
0 to 0.010
Chromium (Cr), % 8.0 to 10
28 to 30
Copper (Cu), % 0 to 0.3
0 to 0.15
Iron (Fe), % 86.8 to 90.5
62.6 to 66.5
Manganese (Mn), % 0.3 to 0.6
0 to 0.3
Molybdenum (Mo), % 0.9 to 1.1
3.5 to 4.2
Nickel (Ni), % 0
2.0 to 2.5
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.25 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.010
0 to 0.020