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EN 1.4558 Stainless Steel vs. N08020 Stainless Steel

Both EN 1.4558 stainless steel and N08020 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4558 stainless steel and the bottom bar is N08020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
15 to 34
Fatigue Strength, MPa 170
210 to 240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 350
380 to 410
Tensile Strength: Ultimate (UTS), MPa 510
610 to 620
Tensile Strength: Yield (Proof), MPa 200
270 to 420

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 480
490
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1400
1410
Melting Onset (Solidus), °C 1350
1360
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 31
38
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 5.5
6.6
Embodied Energy, MJ/kg 77
92
Embodied Water, L/kg 200
220

Common Calculations

PREN (Pitting Resistance) 22
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
83 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 100
180 to 440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 3.1
3.2
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 0.15 to 0.45
0
Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 20 to 23
19 to 21
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 39.2 to 47.9
29.9 to 44
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 32 to 35
32 to 38
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.035
Titanium (Ti), % 0 to 0.6
0