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EN 1.6579 Steel vs. EN 1.4565 Stainless Steel

Both EN 1.6579 steel and EN 1.4565 stainless steel are iron alloys. They have 50% of their average alloy composition in common. There are 31 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 1.6579 steel and the bottom bar is EN 1.4565 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11 to 14
35
Fatigue Strength, MPa 380 to 570
380
Impact Strength: V-Notched Charpy, J 35 to 41
110
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 850 to 980
880
Tensile Strength: Yield (Proof), MPa 600 to 910
480

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
12
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
28
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
5.4
Embodied Energy, MJ/kg 22
74
Embodied Water, L/kg 56
210

Common Calculations

PREN (Pitting Resistance) 2.4
47
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 120
260
Resilience: Unit (Modulus of Resilience), kJ/m3 950 to 2210
550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 30 to 35
31
Strength to Weight: Bending, points 25 to 28
26
Thermal Diffusivity, mm2/s 11
3.2
Thermal Shock Resistance, points 25 to 29
21

Alloy Composition

Carbon (C), % 0.32 to 0.38
0 to 0.030
Chromium (Cr), % 1.4 to 1.7
24 to 26
Iron (Fe), % 94.2 to 96.1
41.2 to 50.7
Manganese (Mn), % 0.6 to 1.0
5.0 to 7.0
Molybdenum (Mo), % 0.15 to 0.35
4.0 to 5.0
Nickel (Ni), % 1.4 to 1.7
16 to 19
Niobium (Nb), % 0
0 to 0.15
Nitrogen (N), % 0
0.3 to 0.6
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015