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EN 1.4558 Stainless Steel vs. SAE-AISI P6 Steel

Both EN 1.4558 stainless steel and SAE-AISI P6 steel are iron alloys. They have 49% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4558 stainless steel and the bottom bar is SAE-AISI P6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 510
630 to 1930

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
43
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 31
4.6
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.5
1.8
Embodied Energy, MJ/kg 77
24
Embodied Water, L/kg 200
59

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
22 to 68
Strength to Weight: Bending, points 18
21 to 44
Thermal Diffusivity, mm2/s 3.1
11
Thermal Shock Resistance, points 12
21 to 63

Alloy Composition

Aluminum (Al), % 0.15 to 0.45
0
Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 20 to 23
1.3 to 1.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 39.2 to 47.9
92.9 to 95
Manganese (Mn), % 0 to 1.0
0.35 to 0.7
Nickel (Ni), % 32 to 35
3.3 to 3.8
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.7
0.1 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.6
0