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EN 1.4028 Stainless Steel vs. EN 1.3555 Steel

Both EN 1.4028 stainless steel and EN 1.3555 steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 23 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 1.4028 stainless steel and the bottom bar is EN 1.3555 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 660 to 930
770

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 760
540
Melting Completion (Liquidus), °C 1440
1500
Melting Onset (Solidus), °C 1400
1450
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
11

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
11
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.9
5.6
Embodied Energy, MJ/kg 27
81
Embodied Water, L/kg 100
90

Common Calculations

PREN (Pitting Resistance) 13
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 33
27
Strength to Weight: Bending, points 22 to 27
23
Thermal Shock Resistance, points 23 to 32
22

Alloy Composition

Carbon (C), % 0.26 to 0.35
0.1 to 0.15
Chromium (Cr), % 12 to 14
3.9 to 4.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 83.1 to 87.7
85.4 to 87.7
Manganese (Mn), % 0 to 1.5
0.15 to 0.35
Molybdenum (Mo), % 0
4.0 to 4.5
Nickel (Ni), % 0
3.2 to 3.6
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0.1 to 0.25
Sulfur (S), % 0 to 0.015
0 to 0.010
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0
1.0 to 1.3