EN 10294-1 Standard: Hollow bars for machining made of non-alloy and alloy steels
Technical requirements and scope of EN 10294-1
The EN 10294-1 standard establishes strict technical delivery conditions for seamless steel hollow bars used in mechanical engineering for the production of parts via turning and milling. EV Group China engineers emphasize that these bars are optimized to achieve high precision when centering on the outer diameter. The specification regulates machinability indicators and provides reference data on bar geometry, ensuring minimal allowances for finish machining.
Technical note: If design documentation requires centering on the inner diameter, tolerance parameters and dimensions can be adapted upon individual agreement between the customer and the EV Group China technical department at the order placement stage.
EN 10294-2 Standard: Hollow bars made of stainless steels with improved machinability
Specification and purpose of EN 10294-2
This section of the EN 10294 standard regulates the supply of hollow bars made from a wide range of stainless steels, including austenitic (including heat-resistant grades) and austenitic-ferritic (duplex) alloys. The primary goal of EN 10294-2 is to ensure stable material machinability during the manufacturing of critical engineering components. EV Group China supplies bars that meet these requirements, which guarantees predictable cutting tool life and high surface finish of the finished parts.