HVD-1™ is a registered trademark of Gustav Grimm Edelstahlwerk, and it is a super duplex stainless steel that has been made for making fertiliser. A lot of it is made up of Cr (24.0–28.0 percent), Ni (2.0–3.00 percent), Mo (7.5–9.5 percent), and Cu (1.0–2.0 percent). It's most similar to Ferralium 255, which is made up of the same things. As it is no longer made or kept in stock, Ferralium 255 is a good choice as an alternative to HVD-1™(is a registered trademark of Gustav Grimm Edelstahlwerk). HVD-1™(is a registered trademark of Gustav Grimm Edelstahlwerk) is often used to make valves, pumps, and other process equipment used in the production of urea and fertiliser. These companies are usually making parts for plants made by companies like Stamicarbon, Snamprogretti, Thyssenkrupp, and Toyo. These licensees can usually use a wide range of metals, including ferralium 255, which is known to work well in fertiliser production because of its resistance to acids.