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Stainless Steel

Stainless steel imparts a variety of benefits to the hydrogen production process.. Due to its chemical resistance and cost, stainless steel is commonly used in PTLs. Because of the alkaline environment of AEM it places a unique demand on materials. The corrosion resistance and electrical conductivity of our stainless steel are up to the task.

The metal fibers of a PTL have a profound effect on an electrolyzer. They must rebound from pressure and unstable current, without damaging the membrane. Not only does stainless steel cut costs, but it increases overall stability. If you are looking for a PTL that aids in scalability and accessibility, you can’t go wrong with stainless steel.

  • Superior porosity and surface area
  • Bounces back from uneven pressure
  • Cuts costs and increases scalability

AEM Application

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Sparking innovation by forming bonds that last

During intermittent electricity or compression, a PTL may experience uncontrolled compression. The mechanical properties of our PTL allow the felt to compress and avoid deformation. In the end, it returns back to its initial thickness and shape, unfazed.

  • Composition offers enhanced elasticity
  • Bounces back after uncontrolled pressure
Features
  • A variety of felt thicknesses
  • Customizable shapes and sizes
Advantages
  • Small fiber diameter provides high surface area
  • Corrosion resistance
  • Electrical conductivity
Applications
  • Anion Exchange Membrane (AEM)
  • Alkaline environments
  • Stable, neutral pH levels

 

Download our Tailored PTLs Product Sheet

 

Sintered metal fiber media have pore sizes in the µm-range

  • Compared to sintered metal powder, higher porosity, and thus permeability, can be achieved at similar pore size.
  • Compared to metal foam, sintered metal fiber media enable a stepwise reduction in pore size and corresponding increase in surface area.
Product sheet - Currento® - Porous transport layer

All your Questions Answered

  1. What is the new name of the materials I have ordered in the past?

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    We've changed our material codes in 2024. If you're looking for the old material codes, you can find them in this table, together with the new material codes.

    You can request a quote on our website.

    Material Code (before 2024) Material Code (2024)ThicknessThicknessPorositySurface Area
    Currento® 2NI 06-0,100 Currento® PTL Ni-66/100 (215 x 290 mm)0,10 mm0.004 inch66%Normal
     Currento® PTL Ni-66/100 (430 x 580 mm)
    Currento® 2NI 06-0,200 Currento® PTL Ni-83/200 (215 x 290 mm)0,20 mm0.008 inch83%
     Currento® PTL Ni-83/200 (430 x 580 mm)
    Currento® 2NI 18-0,250 Currento® PTL Ni-60/250 (215 x 290 mm)0,25 mm0.010 inch60%
     Currento® PTL Ni-60/250 (430 x 580 mm)
    Currento® 2NI 30-0,500 Currento® PTL Ni-66/500 (215 x 290 mm)0,50 mm0.020 inch66%
     Currento® PTL Ni-66/500 (430 x 580 mm)
    Currento® 2NI 18-0,500 Currento® PTL Ni-80/500 (215 x 290 mm)80%
     Currento® PTL Ni-80/500 (430 x 580 mm)
    Currento® 2NI 30-1,000 Currento® PTL Ni-83/1000 (215 x 290 mm)1,00 mm0.039 inch83%
     Currento® PTL Ni-83/1000 (430 x 580 mm)
    - Currento® PTL INC 79/600 (210 x 297 mm)0,60 mm0.024 inch79%Medium
     Currento® PTL INC 79/600 (430 x 580 mm)
    - Currento® PTL NI HR 78/300 (210 x 297 mm)0,30 mm0.012 inch78%High
     Currento® PTL NI HR 78/300 (430 x 580 mm)
    - Currento® PTL NI HR 82/500 (210 x 297 mm)0,50 mm0.020 inch82%
     Currento® PTL NI HR 82/500 (430 x 580 mm)
    - Currento® PTL INC 82/500 (210 x 297 mm)
     Currento® PTL INC 82/500 (430 x 580 mm)
           
    Currento® 60 BL3 Currento® PTL SS-74/145 (210 x 297 mm)0,15 mm0.006 inch74%Normal
    Currento® PTL SS-74/145 (430 x 580 mm)
    -Currento® PTL SS-85/1000 (210 x 297 mm)1,00 mm0.039 inch85%
    Currento® PTL SS-85/1000 (430 x 580 mm)
    Currento® 20 AL3Currento® PTL SS-82/500 (210 x 297 mm)0,50 mm0.020 inch82%Medium
    Currento® PTL SS-82/500 (430 x 580 mm)
    Currento® 10 BL3Currento® PTL SS-81/200 (210 x 297 mm)0,20 mm0.008 inch81%High
    Currento® PTL SS-81/200 (430 x 580 mm)
    Currento® 10 FP3Currento® PTL SS-71/260 (210 x 297 mm)0,26 mm0.010 inch71%
    Currento® PTL SS-71/260 (430 x 580 mm)
    Currento® 10 AL3Currento® PTL SS-78/300 (210 x 297 mm)0,30 mm0.012 inch78%
    Currento® PTL SS-78/300 (430 x 580 mm)
    - Currento® PTL SS-62/410 (210 x 297 mm)0,41 mm0.016 inch62%
     Currento® PTL SS-62/410 (430 x 580 mm)
           
    Currento® 2GDL6-0,150 Currento® PTL Ti-56/150 (215 x 290 mm)0,15 mm0.006 inch56%Normal
     Currento® PTL Ti-56/150 (430 x 580 mm)
    Currento® 2GDL10-0,250 Currento® PTL Ti-56/250 (215 x 290 mm)0,25 mm0.010 inch
     Currento® PTL Ti-56/250 (430 x 580 mm)
    Currento® 2GDL20-0,500 Currento® PTL Ti-56/500 (215 x 290 mm)0,50 mm0.020 inch
     Currento® PTL Ti-56/500 (430 x 580 mm)
    Currento® 2GDL20-1,000 Currento® PTL Ti-56/1000 (215 x 290 mm)1,00 mm0.039 inch
     Currento® PTL Ti-56/1000 (430 x 580 mm)
    - Currento® PTL Ti-66/200 (215 x 290 mm)0,20 mm0.008 inch66%
     Currento® PTL Ti-66/200 (430 x 580 mm)
    - Currento® PTL Ti-67/200 (215 x 290 mm)0,20 mm0.008 inch67%
     Currento® PTL Ti-67/200 (430 x 580 mm)
    - Currento® PTL Ti-68/350 (215 x 290 mm)0,35 mm0.014 inch68%
     Currento® PTL Ti-68/350 (430 x 580 mm)
    - Currento® PTL Ti-70/750 (215 x 290 mm)0,75 mm0.030 inch70%
     Currento® PTL Ti-70/750 (430 x 580 mm)
    - Currento® PTL Ti-77/2000 (215 x 290 mm)2,00 mm0.079 inch77%
     Currento® PTL Ti-77/2000 (430 x 580 mm)
    - Currento® PTL Ti-78/2000 (215 x 290 mm)2,00 mm0.079 inch78%
     Currento® PTL Ti-78/2000 (430 x 580 mm)
           
    No separate material code existed Currento® PTL Ti-56/150 PT200 (220 x 290 mm)0,15 mm0.006 inch56%Normal
     Currento® PTL Ti-56/150 PT200 (440 x 550 mm)
     Currento® PTL Ti-56/250 PT200 (220 x 290 mm)0,25 mm0.010 inch
     Currento® PTL Ti-56/250 PT200 (440 x 550 mm)
     Currento® PTL Ti-56/500 PT200 (220 x 290 mm)0,50 mm0.020 inch
     Currento® PTL Ti-56/500 PT200 (440 x 550 mm)

  2. What product dimensions are available?

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    Limiting to standard products:

    • 210 x 290 mm
    • 430 x 580 mm

    You can request a quote on our website.

    Larger and custom sizes are available for industrial quantities. Please contact us with your questions.

  3. Can the thickness be adapted to fit the cell design?

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    Our standard portfolio is available in the following thickness range: 0,26 mm | 10.2 µin

    You can request a quote on our website.

    For commercial projects the thickness can be adapted, but this will have an impact on porosity. 

  4. Can you explain your product codes?

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    Our product code

    image

  5. What is the grade of the materials being used?

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    AISI 316L

  6. What are the tolerances on dimensions, length, width and thickness?

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    The standard tolerances which are applicable to the dimensions of our sample materials: ± 4mm.

    For commercial projects, we have custom cutting technologies with tolerances of ± 0,5 mm and a thickness tolerance of ± 10%.

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