ZStE260 is a type of high strength steel, designation DIN EN 10292 (SEW093 and SEW094) draft standard. Grain refining and precipitation hardening is used to increase the strength of these types of steels. This material presents a fine-grained microstructure with Ti- and/or Nb-carbonitride precipitations. Tests have been carried out with different coatings and treatments: zinc coating (Z100), zinc electro galvanized (ZE) and re-phosphoresced (P) treatment.