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Introduction Structural steel is a key material used in construction, infrastructure, and heavy engineering projects. To ensure strength, safety, and durability, it must comply with recognized standards such as EN 10025 . Structural steel grade certification verifies that steel materials meet defined grade specifications, ensuring their suitability for load-bearing applications. PRVÁ ZVÁRAČSKÁ, a. s. supports manufacturers and suppliers in achieving certification and maintaining consistent material quality. Understanding Structural steel grade certification Structural steel grade certification confirms that steel products: Meet specified chemical composition requirements Achieve required mechanical properties Are suitable for structural applications Comply with applicable standards Where Structural steel grade certification Applies This certification is required in: Building construction Bridges and infrastructure Industrial structures Offshore and marine p...

  Introduction Structural steel components used in critical applications must meet the highest levels of quality, safety, and reliability. The EN 1090 defines execution requirements for steel and aluminium structures across Europe. EN 1090 EXC4 represents the most stringent execution class within the standard, applied to structures where failure would have severe consequences. PRVÁ ZVÁRAČSKÁ, a. s. supports manufacturers in achieving compliance with this high-level requirement and ensuring complete quality control. Understanding EN 1090 EXC4 EN 1090 EXC4 is the highest execution class defined under EN 1090, requiring maximum control over fabrication, welding, and inspection processes. It ensures: Strict quality control measures Highly qualified personnel Advanced inspection and testing Maximum traceability and documentation Where EN 1090 EXC4 Applies This execution class is required for: Critical infrastructure projects Long-span bridges Nuclear and powe...

  Introduction Welding is a critical process where quality directly impacts the safety and performance of structures and equipment. International standards such as ISO 9606 and EN ISO 15614 define the requirements for qualification of both welders and welding procedures. Welding Qualification Certificate ensures that welding personnel and procedures are properly tested, approved, and capable of producing high-quality welds. PRVÁ ZVÁRAČSKÁ, a. s. supports organizations and individuals in achieving certification and maintaining compliance with global welding standards. Understanding Welding Qualification Certificate Welding Qualification Certificate verifies that: Welders have the required skills and competence Welding procedures are tested and approved Weld quality meets specified standards Production processes are reliable and repeatable Types of Welding Qualification Welding Qualification Certificate may include: Welder Qualification – Based on ISO 9606 ...

  Introduction Welding and welding operations are critical processes in industries where quality directly impacts safety and performance. Standards such as ISO 9606 and ISO 14732 define the requirements for qualifying both welders and welding operators. Welder / welding operator Certification ensures that personnel have the skills, knowledge, and competence to perform welding tasks according to approved procedures. PRVÁ ZVÁRAČSKÁ, a. s. supports individuals and organizations in achieving certification and maintaining high welding quality standards. Understanding Welder / Welding Operator Certification Welder / welding operator Certification verifies the ability to: Perform welding or operate automated welding systems Follow approved Welding Procedure Specifications (WPS) Produce quality welds meeting industry requirements Comply with safety and quality standards Difference Between Welder and Welding Operator Welder / welding operator Certification covers two r...

  Introduction Material traceability and verification are essential in manufacturing and construction industries. The EN 10204 standard defines different types of inspection documents used to certify material quality. EN 10204 Type 3.1 Certificate is one of the most widely used inspection documents, confirming that materials meet specified requirements based on test results. PRVÁ ZVÁRAČSKÁ, a. s. supports manufacturers in ensuring proper documentation and compliance with international material standards. Understanding EN 10204 Type 3.1 Certificate EN 10204 Type 3.1 Certificate is issued by the manufacturer and provides: Verified test results of the supplied material Confirmation of compliance with order specifications Traceability between material and documentation The certificate is validated by an authorized inspection representative independent of production. Where EN 10204 Type 3.1 Applies This certificate is required in: Structural steel fabrication Pre...

  Introduction Safety is a critical factor when dealing with pressurized equipment used in industrial and commercial applications. The S imple Pressure Vessels Directive 2014/29/EU was introduced to ensure that simple pressure vessels placed on the European market meet consistent safety and quality standards. This directive sets out clear requirements for design, manufacturing, and conformity assessment. Certification bodies like PRVÁ ZVÁRAČSKÁ, a. s. help manufacturers navigate compliance and achieve CE marking efficiently. Understanding the Directive The Simple Pressure Vessels Directive 2014/29/EU applies to simple welded vessels designed to contain: Air Nitrogen These vessels must: Operate at an internal pressure greater than 0.5 bar Be manufactured in series production Not be subjected to direct flame exposure The directive ensures that such equipment is safe for use across the European Economic Area (EEA). Scope of Application This directive is applic...

  Introduction In structural steel construction, not every project requires extreme levels of control—but it still demands reliable quality and safety. The European standard EN 1090-2 defines execution classes that match fabrication requirements with structural risk. EN 1090 EXC2  (Execution Class 2) is the most commonly specified class , used for the majority of buildings and general engineering structures. It provides a balanced approach between quality, safety, and cost . Certification specialists like PRVÁ ZVÁRAČSKÁ, a. s. assist companies in achieving and maintaining EXC2 compliance. What is EN 1090 EXC2? EN 1090 EXC2 is an execution class under EN 1090-2 that defines technical and quality requirements for the fabrication and assembly of steel structures with medium risk and standard performance expectations . It ensures: Controlled fabrication processes Verified welding quality Adequate inspection and testing Documented quality management Where is EXC2 ...