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EN 1.4855 Stainless Steel vs. EN 1.6579 Steel

Both EN 1.4855 stainless steel and EN 1.6579 steel are iron alloys. They have 52% of their average alloy composition in common. There are 29 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 1.4855 stainless steel and the bottom bar is EN 1.6579 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
260 to 290
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 4.6
11 to 14
Fatigue Strength, MPa 120
380 to 570
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 500
850 to 980
Tensile Strength: Yield (Proof), MPa 250
600 to 910

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1050
440
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
39
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
3.7
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 5.9
1.7
Embodied Energy, MJ/kg 85
22
Embodied Water, L/kg 200
56

Common Calculations

PREN (Pitting Resistance) 25
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
950 to 2210
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
30 to 35
Strength to Weight: Bending, points 18
25 to 28
Thermal Diffusivity, mm2/s 3.7
11
Thermal Shock Resistance, points 11
25 to 29

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.32 to 0.38
Chromium (Cr), % 23 to 25
1.4 to 1.7
Iron (Fe), % 42.6 to 51.9
94.2 to 96.1
Manganese (Mn), % 0 to 2.0
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.15 to 0.35
Nickel (Ni), % 23 to 25
1.4 to 1.7
Niobium (Nb), % 0.8 to 1.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 1.0 to 2.5
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030