Porous plates and blocks

We produce and supply porous plates and blocks of porous aluminium in various dimensions according to customer specifications. The maximum possible thickness of the product depends on the pore size you choose. Porous aluminium is obtained by casting liquid aluminium together with crystal salt and subsequent salt washing. The larger the pores, i.e. the larger the salt grains, the easier it is to wash out the salt and the greater the thickness a block of porous aluminium can have.

The table below shows the maximum dimensions of the blocks we produce. These limitations of maximum length and maximum width are subject to the available moulds – chills. Please note that it is also possible to produce porous plates and blocks of greater length and width than shown in the table.

max Length mm max Width mm max Thickness mm
Nr. 1 Pore size (0.20 – 0.35 mm) Nr. 2 Pore size (0.30 – 0.50 mm) Nr. 3 Pore size (0.40 – 0.63 mm) Nr. 4 Pore size (0.40 – 1.00 mm) Nr. 5 Pore size (0.63 – 1.60 mm) Nr. 6 Pore size (0.63 – 3.00 mm) Nr. 7 Pore size (0.63 – 4.00 mm)
150 150 50 50 80 100 120 140 150
300 250 40 50 80 100 120 140 150
500 300 20 40 80 100 120 140 150
600 400 30 70 100 120 140 150

We have developed seven standard types of porous aluminium with pore sizes from 0.20 mm to 4.00 mm. On the page “Properties of porous aluminium” you will find a detailed overview of the material properties, determined for each material type.

We are pleased about your interest in our products and are at your disposal for all questions and suggestions. We will be happy to advise you in detail about the possibilities of porous aluminium and listen to you carefully in order to understand your individual task and your conditions and then work out the best solution together with you. We look forward to hearing from you.

Maximum plate dimensions (wall thickness tolerance ±0.1 mm)

Thickness mm Square AxA mm Rectangle AxB mm Disk ØD mm
1 20×20 20×15 20
2 40×40 40×25 30
3 60×60 60×45 40
4 170×170 170×100 100
5 190×190 170×150 120
6 190×190 200×160 120
7 200×200 300×160 120
8 200×200 400×160 120
9 200×200 400×160 120
10 200×200 400×160 120
15 200×200 400×160 120
20 200×200 400×160 120

Maximum plate dimensions (wall thickness tolerance ±0.3 mm)

Thickness mm Square AxA mm Rectangle AxB mm Disk ØD mm
1 30×30 30×20 20
2 50×50 60×40 30
3 70×70 100×50 40
4 190×190 200×150 100
5 200×200 200×180 250
6 400×400 500×350 250
7 400×400 500×400 250
8 400×400 550×400 250
9 400×400 600×400 250
10 400×400 600×400 250
15 400×400 600×400 250
20 400×400 600×400 250

Product examples

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