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EN 1.3553 Steel vs. AISI 418 Stainless Steel

Both EN 1.3553 steel and AISI 418 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.3553 steel and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
330
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 720
1100

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 540
770
Melting Completion (Liquidus), °C 1620
1500
Melting Onset (Solidus), °C 1570
1460
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 24
25
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 11
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 24
15
Density, g/cm3 8.4
8.0
Embodied Carbon, kg CO2/kg material 8.5
2.9
Embodied Energy, MJ/kg 130
41
Embodied Water, L/kg 96
110

Common Calculations

PREN (Pitting Resistance) 31
19
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 24
38
Strength to Weight: Bending, points 21
29
Thermal Diffusivity, mm2/s 6.4
6.7
Thermal Shock Resistance, points 21
40

Alloy Composition

Carbon (C), % 0.78 to 0.86
0.15 to 0.2
Chromium (Cr), % 3.9 to 4.3
12 to 14
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 80.7 to 83.7
78.5 to 83.6
Manganese (Mn), % 0 to 0.4
0 to 0.5
Molybdenum (Mo), % 4.7 to 5.2
0 to 0.5
Nickel (Ni), % 0
1.8 to 2.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 6.0 to 6.7
2.5 to 3.5
Vanadium (V), % 1.7 to 2.0
0