EN 2034:2017

Overview of EN 2034:2017

EN 2034:2017 is a European Standard developed by CEN that specifies the dimensions, tolerances, and physical constants for round steel bars that are drawn and/or descaled, specifically for aerospace applications. These steel bars are critical components used in the aerospace construction industry, requiring precise dimensional control and quality to meet stringent safety and performance requirements.

This standard ensures consistent quality and interchangeability of steel bars used in aerospace manufacturing, helping manufacturers comply with regulatory requirements and maintain high-quality production standards.

Key Topics Covered

• Scope and Application
  EN 2034:2017 defines the dimensional standards and tolerance class h11 for drawn and/or descaled round steel bars designed for aerospace use. It outlines acceptable variations in diameter, cross-sectional area, and mass to ensure product uniformity.

• Material Specifications
  The standard references material properties from related standards, such as EN 2030, defining the steel grades used (e.g., Steel X105CrMo17). It supports traceability by linking dimensional requirements with material characteristics.

• Dimensions and Tolerance Details
  Provided in detailed tables and figures, dimensions cover nominal diameters from 5 mm up to 250 mm with corresponding cross-sectional areas and linear masses, together with the tolerance class h11 ensuring precise manufacturing limits.

• Product Designation and Marking
  Specifies a standardized designation system for steel bars combining material and dimension codes, facilitating easier identification and quality control. Marking requirements align with technical specifications for traceability.

• Normative References EN 2034:2017 refers to essential supporting documents such as EN 2030 (material standards) and ISO 286 (tolerance codes), ensuring harmonization with broader aerospace and metallurgy standards.

Practical Applications

• Aerospace Manufacturing
  EN 2034:2017 supports manufacturers of aircraft components by providing exact steel bar dimensions and tolerance requirements, which are crucial for structural integrity and precision fit in aerospace assemblies.

• Quality Assurance and Inspection
  Engineering teams, inspectors, and quality managers utilize this standard to verify that incoming steel bars meet specified dimensions and tolerances, reducing risks of defects and material failure.

• Supply Chain Management
  Suppliers of steel bars conforming to EN 2034:2017 CAN effectively communicate product specifications to aerospace OEMs and subcontractors, enhancing supply chain reliability and component compatibility.

• Design and Engineering
  Aerospace engineers depend on standardized materials data-such as cross-sectional area and linear mass-to perform accurate calculations related to strength, weight, and performance optimization.

Related Standards and References

• EN 2030: Aerospace series - Steel X105CrMo17 bars
  Defines hardening and tempering treatments and material specifications for aerospace-grade steel bars referenced in EN 2034:2017.

• EN 4700: Aerospace series - Steel and heat-resisting alloys - Wrought products
  Provides technical specifications for steels widely used in aerospace industries.

• ISO 286: Geometrical product specifications (GPS)
  Offers the international system for tolerance codes on linear sizes, underpinning the dimensional control methods used in EN 2034.

Summary

EN 2034:2017 is an essential European Standard for aerospace series round steel bars that are drawn and/or descaled. It defines exact dimensional tolerances with standard h11, linking material properties with aerospace manufacturing and quality assurance needs. This standard enhances compatibility, safety, and performance across aerospace supply chains by prescribing uniform product specifications. Aerospace manufacturers, fabricators, and quality engineers benefit by applying EN 2034:2017 to ensure reliable, high-precision steel bar components.