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EN 1.3558 Steel vs. EN 1.4508 Stainless Steel

Both EN 1.3558 steel and EN 1.4508 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.3558 steel and the bottom bar is EN 1.4508 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 770
570

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Maximum Temperature: Mechanical, °C 490
1000
Melting Completion (Liquidus), °C 1810
1450
Melting Onset (Solidus), °C 1760
1400
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 45
20
Density, g/cm3 9.3
7.9
Embodied Carbon, kg CO2/kg material 8.4
4.0
Embodied Energy, MJ/kg 130
55
Embodied Water, L/kg 90
160

Common Calculations

PREN (Pitting Resistance) 35
32
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23
20
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 5.3
4.1
Thermal Shock Resistance, points 22
17

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.030
Chromium (Cr), % 3.9 to 4.3
18 to 20
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 73.7 to 77.6
61.2 to 69.9
Manganese (Mn), % 0 to 0.4
0 to 1.5
Molybdenum (Mo), % 0 to 0.6
3.0 to 3.5
Nickel (Ni), % 0
9.0 to 12
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.0 to 1.3
0