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EN 1.6554 Steel vs. EN 1.4436 Stainless Steel

Both EN 1.6554 steel and EN 1.4436 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.6554 steel and the bottom bar is EN 1.4436 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 280
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 21
42
Fatigue Strength, MPa 380 to 520
220
Impact Strength: V-Notched Charpy, J 30 to 45
90
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 780 to 930
620
Tensile Strength: Yield (Proof), MPa 550 to 790
240

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
960
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
19
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
3.9
Embodied Energy, MJ/kg 22
54
Embodied Water, L/kg 53
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
210
Resilience: Unit (Modulus of Resilience), kJ/m3 810 to 1650
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 33
22
Strength to Weight: Bending, points 24 to 27
20
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 23 to 27
14

Alloy Composition

Carbon (C), % 0.23 to 0.28
0 to 0.050
Chromium (Cr), % 0.7 to 0.9
16.5 to 18.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.6 to 97.3
62.3 to 70.5
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.3
2.5 to 3.0
Nickel (Ni), % 1.0 to 2.0
10.5 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Vanadium (V), % 0 to 0.030
0