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EN 1.7379 Steel vs. S44800 Stainless Steel

Both EN 1.7379 steel and S44800 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 31 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 1.7379 steel and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 21
23
Fatigue Strength, MPa 320
300
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
82
Tensile Strength: Ultimate (UTS), MPa 670
590
Tensile Strength: Yield (Proof), MPa 460
450

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 460
1100
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
3.8
Embodied Energy, MJ/kg 23
52
Embodied Water, L/kg 59
190

Common Calculations

PREN (Pitting Resistance) 5.7
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 550
480
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 11
4.6
Thermal Shock Resistance, points 19
19

Alloy Composition

Carbon (C), % 0.13 to 0.2
0 to 0.010
Chromium (Cr), % 2.0 to 2.5
28 to 30
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 94.5 to 96.5
62.6 to 66.5
Manganese (Mn), % 0.5 to 0.9
0 to 0.3
Molybdenum (Mo), % 0.9 to 1.2
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 to 0.6
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.020