ALWA POR (CHROME) STEEL

  • is made of steel or stainless steel and a resin binder.

  • is porous and produced as a block or slab in our factory in Gronau, Germany.

  • has a good surface with good porosity.

  • is suitable for injection moulds and blow moulds venting (thermoplastics and rubber).

  • is machinable (e.g., grinding and polishing).

  • prevents compression resistance. The injection moulding material spreads better in the cavities.

  • is an economic alternative to expensive sinter plates.

  • can be cleaned with methyl ethyl ketone (MEK).

Product video ALWA POR

Technical data ALWA POR STEEL:

Characteristic Norm Unit Value
Average pore diameter µ ~ 14
Total porosity % > 30
Density g/cm³ ~ 4.4
Hardness (dot-matrix)  DIN 53505 Shore D ~ 95
Long-term temperature resistance (mould temperature)  DIN 53462 °C ~ 190

Technical data ALWA POR CHROME STEEL:

Characteristic Norm Unit Value
Average pore diameter µ ~ 18
Total porosity % > 28
Density g/cm³ ~ 3.7
Hardness (dot-matrix)  DIN 53505 Shore D ~ 95
Long-term temperature resistance (mould temperature)  DIN 53462 °C ~ 190

Delivery forms: Blocks and slabs are available in different wall thicknesses (steps of 10 mm)

ALWA POR STEEL: 200 x 300 x 20 – 50 mm

ALWA POR CHROME STEEL: 200 x 300 x 20 – 50 mm

The slab tolerance values are between 0 – 0.6 mm in length, width and thickness.

Please consider the different thermal coefficients of linear expansion if ALWA POR (CHROME) STEEL is screwed on a slab or something is screwed on ALWA POR (CHROME) STEEL (slab, block or mould). Drill larger holes for the screws into the material, so that the different expansion coefficients can level out. Screw connections which are used several times should be equipped with threaded sleeves.

Downloads

Product brochure: POROUS SLABS AND BLOCKS ALWA POR