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EN 1.8818 Steel vs. AISI 308L Stainless Steel

Both EN 1.8818 steel and AISI 308L stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.8818 steel and the bottom bar is AISI 308L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
34
Fatigue Strength, MPa 200
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 280
380
Tensile Strength: Ultimate (UTS), MPa 440
580
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1010
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 48
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
3.2
Embodied Energy, MJ/kg 21
45
Embodied Water, L/kg 49
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
160
Resilience: Unit (Modulus of Resilience), kJ/m3 200
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16
21
Strength to Weight: Bending, points 16
20
Thermal Diffusivity, mm2/s 13
4.1
Thermal Shock Resistance, points 13
13

Alloy Composition

Aluminum (Al), % 0.015 to 0.034
0
Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 0 to 0.35
19.5 to 22
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 95.9 to 99.985
63.8 to 70.5
Manganese (Mn), % 0 to 1.6
1.0 to 2.5
Molybdenum (Mo), % 0 to 0.13
0
Nickel (Ni), % 0 to 0.35
9.0 to 11
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.017
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.55
0.25 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.1
0