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Metal Fiber Naslon®

The Naslon® metal fiber combines the strength of stainless steel with the suppleness of fiber, making it suitable for a very wide range of applications.

Metal fiber Naslon

Metal Fiber Naslon®

The major advantage of Naslon® is the fact that it provides the flexibility which conventional inorganic fibers were unable to offer and can be processed like other organic fibers while offering the superior properties of stainless steel.

Naslon® is a registered trademark of Nippon Seisen Co., Ltd.


The product can be produced in each grade of stainless steel. Currently, the two main types being manufactured are as described below.

Chemical composition (%)
Steel grade C As Mn P S Ni Cr Mo Fe
SUS316L 0.030 or lower 1.00 or lower 2.00 or lower 0.040 or lower 0.030 or lower 12.00–15.00 16.00–18.00 2.00–3.00 Remainder
SUS304 0.08 or lower 1.00 or lower 2.00 or lower 0.040 or lower 0.030 or lower 8.00–10.50 18.00–20.00 - Remainder

Fiber diameter

8 μm and 12 μm are standard, with other sizes also available.

Corrosion resistance

The product has excellent weather resistance, and excellent resistance to corrosion by nitric acid, alkalis, organic solvents, etc. It also generally has good tolerance of chemicals, but it needs to be noted that it is susceptible to damage by reducing acids such as hydrochloric acid and sulfuric acid and chemicals containing halogen groups.

Heat resistance

Naslon® in its heat resistant fiber state has a different life depending on the application, but it can be used within a range up to the stainless steel annealing temperature of 1,150°C (in inert gas). Note: Melting point 1,400°C to 1,500°C

Test conditions

Sample material: Cloth A
Heating method: Left in atmospheric muffle furnace
Sample dimensions: 50 mm width × 200 mm length

Exposure conditions Strength (kg) Strength retention rate (%)
(Material = 100%)
Sample material state
Material 69.5 100 -
300°C × 5 hrs 72.0 104 No abnormality at all
400°C × 5 hrs 76.0 110 Change to purple-brown
500°C × 5 hrs 68.0 99 Change to purple-brown
600°C × 5 hrs 55.0 80 Partial strong coloring
700°C × 5 hrs 52.0 75 Partial strong oxidation
750°C × 5 hrs 45.0 65 Partial strong oxidation