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EN 1.3553 Steel vs. EN 1.4518 Stainless Steel

Both EN 1.3553 steel and EN 1.4518 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 25 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 EN 1.4518 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 720
490

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 540
1000
Melting Completion (Liquidus), °C 1620
1450
Melting Onset (Solidus), °C 1570
1400
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 24
20
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.5
4.0
Embodied Energy, MJ/kg 130
55
Embodied Water, L/kg 96
160

Common Calculations

PREN (Pitting Resistance) 31
30
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 24
17
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 6.4
4.1
Thermal Shock Resistance, points 21
14

Alloy Composition

Carbon (C), % 0.78 to 0.86
0 to 0.030
Chromium (Cr), % 3.9 to 4.3
18 to 20
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 80.7 to 83.7
61.4 to 70
Manganese (Mn), % 0 to 0.4
0 to 1.5
Molybdenum (Mo), % 4.7 to 5.2
3.0 to 3.5
Nickel (Ni), % 0
9.0 to 12
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 6.0 to 6.7
0
Vanadium (V), % 1.7 to 2.0
0