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EN 1.6579 Steel vs. EN 1.4432 Stainless Steel

Both EN 1.6579 steel and EN 1.4432 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, 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 1.4432 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 290
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
44
Fatigue Strength, MPa 380 to 570
220
Impact Strength: V-Notched Charpy, J 35 to 41
90
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 850 to 980
610
Tensile Strength: Yield (Proof), MPa 600 to 910
250

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 440
960
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
3.9
Embodied Energy, MJ/kg 22
54
Embodied Water, L/kg 56
150

Common Calculations

PREN (Pitting Resistance) 2.4
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 120
220
Resilience: Unit (Modulus of Resilience), kJ/m3 950 to 2210
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 30 to 35
21
Strength to Weight: Bending, points 25 to 28
20
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 25 to 29
14

Alloy Composition

Carbon (C), % 0.32 to 0.38
0 to 0.030
Chromium (Cr), % 1.4 to 1.7
16.5 to 18.5
Iron (Fe), % 94.2 to 96.1
62.3 to 70.5
Manganese (Mn), % 0.6 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.15 to 0.35
2.5 to 3.0
Nickel (Ni), % 1.4 to 1.7
10.5 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015