about us

Iron foundry and steel foundry SN Cast Iron

Stef Nas started his work in a foundry at the age of 18 in 1988.
After 22 years of working as a formworker in an iron foundry, he decided that it was time to start his own company in 2009. The name of the company was soon clear, SN (Stef Nas) and cast iron because everything had started in an iron foundry despite the fact that the cast steel also runs through the veins.

Cast iron and cast steel back in Ulft in the Achterhoek

SN cast iron is settled in Ulft and brings the cast iron and steel castings back here in Ulft where 250 years of iron history is woven.
The iron foundry DRU decided after the foundation in 1754 in the 80’s of the last century to stop castings of iron.

Theory and practice go hand-in-hand

A lot of practical and theoretical experience was combined where the quality standard could be used directly on high-quality products.
Because all these diverse expertise are bundled together with SN cast iron, it makes us more interesting for a client. Instead of working together with two, three or more companies, you have to deal with one conversation partner.
We have the possibilities to manufacture the product for you from A to Z.

Our clients are located in On and Offshore, dredging, wind power, energy, machine building, recycling, food, air, metal industry, etc.
We hope to give you a good insight of our possibilities on this website.

What can we do for you in cast iron, steel castings, forgings and other cast metals:

  • Iron and Steel Castings from 1 to 200.000 kg
  • Cast iron EN-GJS to DIN / EN1561 (GG 20, 25 and 30)
  • Cast iron EN-GJL to DIN / EN1563 (GGG 35, 40, 40.3, 50, 60, 70 and 80)
  • ADI cast iron to DIN / EN1564 with HB to 480 possible (ADI 800 to 1400)
  • Special cast iron Ni-Resist (seawater resistant)
  • Steel casting in every alloy
  • Centrifugal castings (horizontal up to diameter 800mm and 6000mm length)
  • Centrifugal castings (vertical up to diameter 1700mm and 2000mm height)
  • Machining
  • The iron / steel to give a heat treatment
  • Spraying / painting of castings by color
  • Engineering
  • Measurement report
  • Delivery of mold / model
  • Fast delivery and high quality
  • And much more

More information


Became curious?

Do you have any questions about cast iron, cast steel or our machine factory? Please contact us.

Call or email us.