Our offer comprises heat-resistant pipes, acid-resistant pipes, abrasion-resistant steel plates, heat-resistant steel plates, acid-resistant steel plates, stainless steel, heat-resistant steel, acid-resistant steel, heat-resistant bars, acid-resistant bars which are of the highest quality for attractive prices.
Heat-resistant steel and pipes — this is steel resistant to corrosive impact of oxidising gases at high temperatures. Steel heat-resistance results mostly from the possibility of formation of compact scale on its surface (passivation). Up to the temperature of ca. 560 °C iron oxidising takes place relatively slowly (Fe3O4, magnetite is formed), while above thise temperature scale is mostly formed by wustite which makes up a solid solution with the excess of oxygen atoms what allows for diffusion of iron ions and accelerates oxidation.
Polish Standard PN lists a group of heat-resistant and refractory steel, among which are those marked with the following symbols: h5m, h6s2, 2h17, h13js, h18js, h24js, h25t, H26N4, H18N9S, H23N13, h20n12s2, h23n18, h25n20s2, h18n25s2 and valve steel: h9s2, h10s2m, 4h14n14w2m, 50h21g9n4.
Our European standards list such grades of heat-resistant steel as: X18CrN28, 1.4749, 15h25t, X15CrNiSi20-12, 1.4828, X15CrNiSi25-21, 1.4841, X8CrNi25-21, X6CrNi25-20, 1.4845, 1.4878, 347HFG
Universally equipped warehouses make the customers do not need to wait for the ordered products but collect them on the spot. The strength of DAR-POL-STAL company is the servicing realized by professionals with long-term experience.
Due to work of people with band saws, pressing machine, guillotine, milling machine or lathe, the product obtains a precise form and features demanded by the Customer — without logistic and formal complications connected with the possible commissioning of the services to external entities.
Own professional logistic servicing allows assuring reliability of deliveries in the agreed time to the customers.