MakeItFrom.com
Menu (ESC)

EN 1.6579 Steel vs. S44401 Stainless Steel

Both EN 1.6579 steel and S44401 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 30 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 1.6579 steel and the bottom bar is S44401 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
21
Fatigue Strength, MPa 380 to 570
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 850 to 980
480
Tensile Strength: Yield (Proof), MPa 600 to 910
300

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 440
930
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
22
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
12
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.9
Embodied Energy, MJ/kg 22
40
Embodied Water, L/kg 56
130

Common Calculations

PREN (Pitting Resistance) 2.4
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 120
90
Resilience: Unit (Modulus of Resilience), kJ/m3 950 to 2210
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 30 to 35
17
Strength to Weight: Bending, points 25 to 28
18
Thermal Diffusivity, mm2/s 11
5.9
Thermal Shock Resistance, points 25 to 29
17

Alloy Composition

Carbon (C), % 0.32 to 0.38
0 to 0.025
Chromium (Cr), % 1.4 to 1.7
17.5 to 19.5
Iron (Fe), % 94.2 to 96.1
75.1 to 80.6
Manganese (Mn), % 0.6 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.35
1.8 to 2.5
Nickel (Ni), % 1.4 to 1.7
0 to 1.0
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8