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EN 1.5538 Steel vs. EN 1.4634 Stainless Steel

Both EN 1.5538 steel and EN 1.4634 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.5538 steel and the bottom bar is EN 1.4634 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 530 to 1810
540

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
900
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
21
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.9
Embodied Energy, MJ/kg 19
42
Embodied Water, L/kg 48
140

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19 to 64
20
Strength to Weight: Bending, points 19 to 42
19
Thermal Diffusivity, mm2/s 14
5.8
Thermal Shock Resistance, points 16 to 53
19

Alloy Composition

Aluminum (Al), % 0
0.2 to 1.5
Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.35 to 0.4
0 to 0.030
Chromium (Cr), % 0 to 0.3
17.5 to 18.5
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 97.2 to 98.5
74.9 to 81.8
Manganese (Mn), % 1.2 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.3 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.050
Silicon (Si), % 0 to 0.3
0.2 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.050