What is BS EN 10025‑2 about?
BS EN 10025 is a series of European standards on structural steel that discusses the best procedures and specifications required for manufacturing high-quality steel and steel products. BS EN 10025‑2 is the second part of a series of documents on structural steel. BS EN 10025‑2 specifies the technical delivery conditions for flat and long products as well as semi-finished products which are meant for further processing to flat and long products of hot rolled nonalloy quality steels in the grades and qualities given in Tables 1 to 5 (chemical composition) and Tables 6 to 8 (mechanical properties) in the usual delivery conditions as given in 6.3. Three engineering steels are also specified in BS EN 10025‑2 (see Tables 2 and 4) (chemical composition) and Table 7 (mechanical properties). BS EN 10025‑2 does not apply to structural hollow sections (see EN 10210-1 and EN 10219-1) and tubes.
The technical delivery conditions apply to:
- Thicknesses ≥ 3 mm and ≤ 150 mm for long products of steel grade S460JR, J0, J2, K2, and S500J0;
- Thicknesses ≤ 400 mm for flat products of qualities JR, J0, J2, and K2;
- Thicknesses ≤ 250 mm for flat and long products of all other grades and qualities.
The steels specified in BS EN 10025‑2 are not intended to be heat treated except products delivered in the delivery condition +N. Stress-relieving is accepted. Products delivered in +N condition can be hot formed and/or normalized after delivery (see Clause 3).
BS EN 10025‑2 foresees that semi-finished products which are to be converted to rolled finished products conforming to BS EN 10025‑2 are the subject of special agreements at the time of the order.
Who is BS EN 10025‑2 for?
BS EN 10025‑2 on hot rolled products of structural steels is relevant to:
- Steel manufacturers
- Testing and assessment facilities
- Mechanical engineer
Why should you use BS EN 10025‑2?
The main difference between alloy and non-alloy steel is that alloy steel is composed of iron added with other elements during smelting whereas non-alloy steel has no added elements when it is smelted.
BS EN 10025‑2 provides guidance on the manufacturing process, chemical composition, mechanical properties, weldability, machinability, surface properties, dimensions, tolerances on dimensions, shape, and mass of non-alloy structural steels products. BS EN 10025‑2 specify tests to be carried out for inspection steel which helps you to maintain the quality of steel. BS EN 10025‑2 exemplifies the required dimensions and tolerances that help you achieve precision in terms of product functionality.
As a user of BS EN 10025‑2, you can be ensured of all the properties of non-alloy structural steels meant for processing hot-rolled flat and long products. With obedience and compliance to BS EN 10025‑2, you can efficiently manufacture high-quality non-alloy structural steels products. BS EN 10025‑2 helps you to build consumer trust and confidence in the product. With BS EN 10025‑2 you can be ensured that the products consistently meet and exceed quality assurance targets
What’s changed since the last update?
BS EN 10025‑2:2019 supersedes BS EN 10025‑2:2004, which is withdrawn.
The main changes concerning the previous edition are listed below:
- Part 2 is now a stand-alone standard for technical delivery conditions including the preparation of samples and test pieces, the test methods, the marking, labeling and packaging, and the drawings
- For applications under the CPR, BS EN 10025‑2 and part 1 are used together
- Requirements for elements not defined were added to 7.2.1 and 7.2.2
- Option 33 was added, options 9 and 21 were deleted
- Si-content in 7.2.5 was changed, the key to figuring a.1 was updated
- 7.4.3 concerning hot-dip zinc coating was modified, steel grade s450 was deleted and steel grades s460 and s500 were added
- Annex b concerning the corresponding euro norms was deleted, references were updated and the document was editorially revised
