EN 10219 vs EN 10210: Hollow Section Standards Compared

The EN 10219 vs EN 10210 question is really a question about how the hollow section is made. EN 10210 covers hot finished structural hollow sections; EN 10219 covers cold formed welded structural hollow sections. Both are European standards for the same family of square, rectangular and circular hollow sections, both are ordered in the same nominal sizes, and both are used for columns, frames, trusses and racking — but the forming route behind each one decides the residual stress left in the section, the tolerances it is checked against, and where it is accepted without question.

The short answer

EN 10210 is the hot finished standard; EN 10219 is the cold formed welded standard. If a drawing, a design code or a destination market names one of them, quote against that one, because the two are not interchangeable without the engineer’s approval. If the choice is genuinely open, the split normally follows the duty: hot finished sections are the traditional pick where toughness and low residual stress matter, while cold formed welded sections are the volume product used for general structural framing.

What each standard covers

Why the forming route reaches your inspection report

The two standards are not two names for one product. Because the section is made differently, it is checked differently, and the difference shows up in three places a buyer actually deals with.

Tolerances. Each standard carries its own tolerance part, EN 10210-2 and EN 10219-2, so the permitted deviation on side dimensions, wall thickness, squareness, straightness and twist comes from the standard you specify. If the enquiry is silent, the mill will deliver to whichever standard it is rolling, and the disagreement surfaces at incoming inspection.

Residual stress and ductility. A hot finished section has been through a high temperature route that relaxes forming stress. A cold formed welded section gains part of its strength from work hardening, which is a real advantage in price and availability, but it carries more locked in stress and behaves differently wherever the design relies on toughness or on further cold forming.

Documents. Either way the section is delivered with an inspection document. The usual mill test certificate is issued to EN 10204 3.1, and a project that needs independent witnessing asks for 3.2 instead. Whichever is required, the certificate has to name the standard and the grade on your enquiry, so the standard is never just an administrative detail. See EN 10204 3.1 vs 3.2 for the difference.

Grade designations you will meet on a certificate

A certificate normally states a grade rather than a full description, so it helps to know which family each designation belongs to. Our grade database maps the common cold formed hollow section designations like this:

Grade and standard are two separate facts. A designation ending in H tells you the product is a hollow section rather than a plate or a beam; it does not tell you which of the two standards it was made to. That is always stated separately on the enquiry and on the certificate.

Which one should you specify?

What to put in your enquiry

Hollow section enquiries go wrong when the standard is assumed rather than stated. Send these six items and the mill can quote without guessing:

1. The standard and its parts — EN 10210 or EN 10219, with part 1 and part 2 where the project requires them
2. The grade designation, including any impact or temperature class written on the drawing
3. Section type and size — circular, square or rectangular, with outside dimensions and wall thickness
4. Lengths, and whether random or fixed lengths are acceptable
5. Quantity, destination port and the delivery term you are buying on
6. The inspection document required — EN 10204 3.1, or 3.2 where an independent body has to verify it

Common mistakes

• Treating EN 10210 and EN 10219 as interchangeable: the section properties, tolerances and marking are not the same, and a substitution can be rejected at inspection
• Quoting a grade without a standard: the same nominal grade can arrive hot finished or cold formed welded, and the certificate has to match the enquiry
• Assuming a galvanized hollow section is a third standard: hot dip galvanizing is a coating applied to a section that was still made to EN 10210 or EN 10219
• Leaving the tolerance part out of the enquiry, then arguing about straightness or squareness that the standard you did not specify would have allowed
• Confusing this choice with the welded versus seamless choice: seamless and welded are forming families, while EN 10210 and EN 10219 describe a European structural product

Related reading

• Hollow sections
• Welded steel pipe
• Seamless steel pipe
• EN 10204 3.1 vs 3.2 certificates
• Seamless vs welded pipe
• Quality and certification

Frequently asked questions

What is the main difference between EN 10219 and EN 10210?

EN 10210 covers hot finished structural hollow sections and EN 10219 covers cold formed welded structural hollow sections. The difference is the forming route, formed hot against cold roll-formed and welded, and it changes residual stress, tolerances and the way the section is checked.

Can EN 10219 be used instead of EN 10210?

Only where the design allows it. Each standard has its own section properties and its own tolerance part, so a substitution has to be approved by the engineer who specified the original. Ordering the other standard by accident is a common reason a delivery is rejected.

What does the H mean in a hollow section grade such as S355J2H?

The H marks the product as a hollow section rather than a plate or a beam. It does not say which standard the section was made to, because the same grade family can be supplied hot finished or cold formed welded. EN 10210 or EN 10219 is stated separately on the enquiry and on the certificate.

Which standard covers galvanized hollow sections?

Neither, and both. Galvanizing is a coating, normally hot dip galvanizing to a coating standard, applied to a hollow section that was made to EN 10210 or EN 10219. The base standard and the coating standard both belong in the order.

Is EN 10219 cheaper than EN 10210?

Price follows size, grade, quantity, mill programme and coating far more than the standard on its own. Cold formed welded hollow sections are the higher volume product, but a hot finished section can be competitive when a mill is already rolling that size, so compare offers on the same size, grade and delivery term.

What certificate should come with a hollow section order?

The standard calls for an inspection document, and the common one is a mill test certificate to EN 10204 3.1 naming the standard, the grade and the heat number. Where the project requires independent verification, 3.2 is used instead.

Standard and grade designations are quoted as published. Section properties, tolerances and impact requirements must be read from the current edition of the standard named on the order, not from this summary.

Send the product, size, grade and quantity you need and we will come back with a worked offer. See the steel product catalogue, how we inspect and certify each order, or request a quotation.