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Grade 350 Maraging Steel vs. PFA

Grade 350 maraging steel and PFA belong to fundamentally different material chemistries. Grade 350 maraging steel is a metal, while PFA is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 8 material properties with values for both materials. Properties with values for just one material (31, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is grade 350 maraging steel and the bottom bar is PFA.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 8.2
2.2
Elongation at Break, % 4.1 to 18
300
Melting Onset (Solidus), °C 1420
300
Specific Heat Capacity, J/kg-K 450
1000
Strength to Weight: Axial, points 38 to 82
3.9
Strength to Weight: Bending, points 29 to 49
10
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
30
Thermal Expansion, µm/m-K 12
120