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S44635 Stainless Steel vs. EN 1.6579 Steel

Both S44635 stainless steel and EN 1.6579 steel are iron alloys. They have 69% of their average alloy composition in common. There are 31 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 S44635 stainless steel and the bottom bar is EN 1.6579 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
260 to 290
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
11 to 14
Fatigue Strength, MPa 390
380 to 570
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 710
850 to 980
Tensile Strength: Yield (Proof), MPa 580
600 to 910

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
440
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
39
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 22
3.7
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.7
Embodied Energy, MJ/kg 62
22
Embodied Water, L/kg 170
56

Common Calculations

PREN (Pitting Resistance) 39
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 810
950 to 2210
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
30 to 35
Strength to Weight: Bending, points 23
25 to 28
Thermal Diffusivity, mm2/s 4.4
11
Thermal Shock Resistance, points 23
25 to 29

Alloy Composition

Carbon (C), % 0 to 0.025
0.32 to 0.38
Chromium (Cr), % 24.5 to 26
1.4 to 1.7
Iron (Fe), % 61.5 to 68.5
94.2 to 96.1
Manganese (Mn), % 0 to 1.0
0.6 to 1.0
Molybdenum (Mo), % 3.5 to 4.5
0.15 to 0.35
Nickel (Ni), % 3.5 to 4.5
1.4 to 1.7
Niobium (Nb), % 0.2 to 0.8
0
Nitrogen (N), % 0 to 0.035
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.2 to 0.8
0