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EN 1.6553 Steel vs. EN 1.4318 Stainless Steel

Both EN 1.6553 steel and EN 1.4318 stainless steel are iron alloys. They have 76% 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 1.6553 steel and the bottom bar is EN 1.4318 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 240
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19 to 21
44
Fatigue Strength, MPa 330 to 460
340
Impact Strength: V-Notched Charpy, J 30
85
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 710 to 800
740
Tensile Strength: Yield (Proof), MPa 470 to 670
380

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
910
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.7
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.8
Embodied Energy, MJ/kg 21
39
Embodied Water, L/kg 51
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 150
280
Resilience: Unit (Modulus of Resilience), kJ/m3 600 to 1190
360
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 28
27
Strength to Weight: Bending, points 23 to 24
23
Thermal Diffusivity, mm2/s 10
4.0
Thermal Shock Resistance, points 21 to 23
17

Alloy Composition

Carbon (C), % 0.23 to 0.28
0 to 0.030
Chromium (Cr), % 0.4 to 0.8
16.5 to 18.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 95.6 to 98.2
70.2 to 77.4
Manganese (Mn), % 0.6 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.15 to 0.3
0
Nickel (Ni), % 0.4 to 0.8
6.0 to 8.0
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Vanadium (V), % 0 to 0.030
0