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EN 1.3555 Steel vs. EN 1.4557 Stainless Steel

Both EN 1.3555 steel and EN 1.4557 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 24 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 1.3555 steel and the bottom bar is EN 1.4557 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 770
560

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 540
1090
Melting Completion (Liquidus), °C 1500
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 460
460
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
29
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 5.6
5.6
Embodied Energy, MJ/kg 81
76
Embodied Water, L/kg 90
190

Common Calculations

PREN (Pitting Resistance) 18
45
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27
19
Strength to Weight: Bending, points 23
19
Thermal Shock Resistance, points 22
12

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.020
Chromium (Cr), % 3.9 to 4.3
19.5 to 20.5
Copper (Cu), % 0 to 0.1
0.5 to 1.0
Iron (Fe), % 85.4 to 87.7
49.5 to 56.3
Manganese (Mn), % 0.15 to 0.35
0 to 1.2
Molybdenum (Mo), % 4.0 to 4.5
6.0 to 7.0
Nickel (Ni), % 3.2 to 3.6
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0.1 to 0.25
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.010
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 1.0 to 1.3
0