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EN 1.4558 Stainless Steel vs. EN 1.4606 Stainless Steel

Both EN 1.4558 stainless steel and EN 1.4606 stainless steel are iron alloys. They have 85% 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 EN 1.4606 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
23 to 39
Fatigue Strength, MPa 170
240 to 420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
75
Shear Strength, MPa 350
410 to 640
Tensile Strength: Ultimate (UTS), MPa 510
600 to 1020
Tensile Strength: Yield (Proof), MPa 200
280 to 630

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 480
770
Maximum Temperature: Mechanical, °C 1100
910
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
14
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 31
26
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.5
6.0
Embodied Energy, MJ/kg 77
87
Embodied Water, L/kg 200
170

Common Calculations

PREN (Pitting Resistance) 22
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 100
200 to 1010
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
21 to 36
Strength to Weight: Bending, points 18
20 to 28
Thermal Diffusivity, mm2/s 3.1
3.7
Thermal Shock Resistance, points 12
21 to 35

Alloy Composition

Aluminum (Al), % 0.15 to 0.45
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 20 to 23
13 to 16
Iron (Fe), % 39.2 to 47.9
49.2 to 59
Manganese (Mn), % 0 to 1.0
1.0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 32 to 35
24 to 27
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.6
1.9 to 2.3
Vanadium (V), % 0
0.1 to 0.5