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EN 1.4901 Stainless Steel vs. EN 1.3558 Steel

Both EN 1.4901 stainless steel and EN 1.3558 steel are iron alloys. They have 83% of their average alloy composition in common. There are 25 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 1.4901 stainless steel and the bottom bar is EN 1.3558 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 740
770

Thermal Properties

Latent Heat of Fusion, J/g 260
240
Maximum Temperature: Mechanical, °C 650
490
Melting Completion (Liquidus), °C 1490
1810
Melting Onset (Solidus), °C 1450
1760
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 26
20
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
13
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
45
Density, g/cm3 7.9
9.3
Embodied Carbon, kg CO2/kg material 2.8
8.4
Embodied Energy, MJ/kg 40
130
Embodied Water, L/kg 89
90

Common Calculations

PREN (Pitting Resistance) 14
35
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 26
23
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 6.9
5.3
Thermal Shock Resistance, points 23
22

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0.7 to 0.8
Chromium (Cr), % 8.5 to 9.5
3.9 to 4.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 85.8 to 89.1
73.7 to 77.6
Manganese (Mn), % 0.3 to 0.6
0 to 0.4
Molybdenum (Mo), % 0.3 to 0.6
0 to 0.6
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
17.5 to 19
Vanadium (V), % 0.15 to 0.25
1.0 to 1.3
Zirconium (Zr), % 0 to 0.010
0