Hot Dip Galvanized HDG Studs, Screw

Most ferrous materials are suitable for Galvanized Stud. Full thread studs can be protected by hot dip galvanizing. Structural steel shapes, including those of high strength low alloy materials, are hot dip galvanized after fabrication to obtain the long lasting protection afforded by the zinc coating.Though most ferrous materials can be hot dip galvanized, the characteristics of the galvanized coating will be primarily a function of the chemical composition of the material.The galvanized coating has as its basis a reaction between steel and molten zinc resulting in the formation of a series of zinc-iron alloy layers, which are normally covered by a layer of solidified zinc. For most hot rolled steels the zinc-iron alloy portion of the coating will represent 50 to 70 percent of the total coating thickness.Hydrogen Embrittlement:Hydrogen embrittlement is a ductile-to-brittle change which occurs in certain high strength steels. Hydrogen released during the pickling operation can cause this embrittlement. This hydrogen can be absorbed into a steel during the acid pickling but at galvanizing temperatures, it is generally expelled from the steel.Hydrogen embrittlement is not common, but precautions should be taken, particularly if the steel involved has an ultimate tensile strength exceeding approximately 150,000 psi. If high strength steels are to be processed, grit blasting instead of acid pickling is recommended to minimize the likelihood of hydrogen embrittlement.We provide HDG UPTO 100 microns as per customer''s requirement. We also have in-house coating thickness checking instrument. Specifications:Material: Stainless SteelStandard: DINLength: 50mm-2000mmType: Double thread bolt