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EN 1.8818 Steel vs. S45000 Stainless Steel

Both EN 1.8818 steel and S45000 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.8818 steel and the bottom bar is S45000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
280 to 410
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
6.8 to 14
Fatigue Strength, MPa 200
330 to 650
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 280
590 to 830
Tensile Strength: Ultimate (UTS), MPa 440
980 to 1410
Tensile Strength: Yield (Proof), MPa 270
580 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
840
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 48
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
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 49
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
94 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 200
850 to 4400
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16
35 to 50
Strength to Weight: Bending, points 16
28 to 36
Thermal Diffusivity, mm2/s 13
4.5
Thermal Shock Resistance, points 13
33 to 47

Alloy Composition

Aluminum (Al), % 0.015 to 0.034
0
Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 0 to 0.35
14 to 16
Copper (Cu), % 0 to 0.6
1.3 to 1.8
Iron (Fe), % 95.9 to 99.985
72.1 to 79.3
Manganese (Mn), % 0 to 1.6
0 to 1.0
Molybdenum (Mo), % 0 to 0.13
0.5 to 1.0
Nickel (Ni), % 0 to 0.35
5.0 to 7.0
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.017
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.55
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.1
0