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EN 1.4568 Stainless Steel vs. EN 1.5515 Steel

Both EN 1.4568 stainless steel and EN 1.5515 steel are iron alloys. They have 75% 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 1.4568 stainless steel and the bottom bar is EN 1.5515 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 76
72
Tensile Strength: Ultimate (UTS), MPa 830 to 1620
490 to 1760

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 890
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
48
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.4
Embodied Energy, MJ/kg 40
19
Embodied Water, L/kg 140
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30 to 58
17 to 63
Strength to Weight: Bending, points 25 to 40
18 to 41
Thermal Diffusivity, mm2/s 4.3
13
Thermal Shock Resistance, points 23 to 46
14 to 52

Alloy Composition

Aluminum (Al), % 0.7 to 1.5
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.090
0.35 to 0.4
Chromium (Cr), % 16 to 18
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 70.9 to 76.8
97.8 to 98.9
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Nickel (Ni), % 6.5 to 7.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.7
0.15 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025