EN 10025 — Standard

About the Standard

Scope title: hot-rolled structural steel products

EN 10025 is a standard published by European Standard (EN) (EN). Standards published by the European standardisation organisations and adopted as national standards in member states; they are used as harmonised standards under EU directives.

See the other 194 codes from EN

Coverage areas

Metal and Metallurgy Testing — What Does This Testing Field Cover?

The section below describes the field that code EN 10025 belongs to; it is not the text of the standard or the regime itself. The scope title of the code is given above, and technical requirements are shared at the quotation stage.

Metal and metallurgical testing determines the load a metal or a welded joint can carry, how it fails and what its internal structure looks like. The output of this family is often not about the product itself but about the identity of the MATERIAL: is the steel really of the declared grade, does the weld seam deliver the strength the design assumes, does the casting contain an unacceptable internal defect?

The practical importance of the field comes from the fact that a metal part rarely fails gradually. A plastic part deforms, ages, cracks and usually gives warning. A weld seam or a fastener, by contrast, often breaks without warning — especially where fatigue and brittle fracture are involved. That is why in fields such as pressure equipment, lifting gear, structural steel and pipelines, material testing is a requirement of REGULATION rather than of design.

The family brings together three groups of methods, and each answers a different question. Mechanical tests quantify how the material behaves under load. Non-destructive examination looks for defects without damaging the part. Metallography and chemical analysis explain why the material behaves the way it does — through grain structure, phase distribution, inclusion content and alloy composition.

The acceptance criterion for these tests almost never comes from the test standard, and this is the key to understanding the field. The test standard says how the measurement is to be made; the acceptable values come from the product standard, the material grade or the fabrication code. ISO 6892-1 tells you how to run a tensile test; EN 10025 tells you what yield strength that steel must deliver. When reading a report, the product standard it was assessed against is essential.

Sampling is an inseparable part of the result in this field. Two specimens taken from the same heat may give different values depending on the direction and location they were taken from; in rolled products, specimens parallel and perpendicular to the rolling direction produce different results. Product standards therefore also govern sampling location and orientation, and the report must document this.

Method groups in this field

Mechanical tests
Tensile, compression, bending, notch impact (Charpy), hardness (Brinell, Vickers, Rockwell), fatigue, creep and fracture toughness. These give the behaviour of the material under load in numerical form.
Non-destructive examination
Radiography, ultrasonic examination, penetrant, magnetic particle and visual examination. It looks for surface and internal defects without damaging the part and is an indispensable step in welded fabrication.
Metallography
Specimen preparation, etching and microscopic examination. Grain size, phase distribution, inclusion content, case depth and the weld heat-affected zone are assessed.
Chemical analysis
Alloy composition is verified by optical emission spectrometry and wet chemistry; confirmation of the material grade runs through this step.
Corrosion behaviour
Salt spray, pitting and crevice corrosion and intergranular corrosion tests. In stainless steels these can indicate the quality of the heat treatment.

Commonly confused in this field

A material certificate (such as EN 10204 3.1) is not a test report; it is the manufacturer's declaration. In critical applications independent verification is carried out, and the two must not be confused.
ASTM and ISO tensile tests measure the same quantities but use different specimen geometries; the results are not treated as directly equivalent, and whichever the specification calls for is the one applied.
Conversion tables between hardness and strength are APPROXIMATE. Calculating yield strength from hardness is not sufficient evidence for material acceptance.
In non-destructive examination, "no defect found" does not mean there is no defect; defects below the detection limit of the method may be present. The report must state the method applied and the sensitivity level.
A weld seam passing does not show that the welder or the procedure is qualified; these are separate processes.

Which decisions these results support

Verifying the material certificate and accepting incoming material
Approving welded fabrication; welder and procedure qualification
Manufacturing control of pressure equipment and structural components
Failure analysis and determining the root cause of field damage
Verifying heat treatment and surface treatment processes

Structure of the Code

Published by: EN
Serial number: 10025
Part: without partition

Codes in the library without release year is kept. The current version changes over time; If the year is specified in your specification, that version is taken as basis, if not specified, the most current version is applied.

Scope

Related Tests and Services

A separate test page based on this code has not yet been released. The code falls within the scope of the following test families.

Technical Requirements

Standard texts are copyright of the relevant organization; test condition, sample and acceptance criteria cannot be fitted here.

Technical requirements specific to your product, once we clarify the scope At offer stage shared in writing.

Relevant Product Groups and Legislation

This code is included in the standard tag of the product pages below.

These product pages carry notes for the following markets: European Union, United Kingdom, USA, Saudi Arabia, China. Whether the standard is mandatory in the relevant market varies depending on the product group and the applicable legislation.

Regulations published with this code on the same product pages:

2014/35/EULVDThe Low Voltage Directive. Governs the electrical safety of equipment operating in the 50–1000 V AC range; the manufacturer makes the declaration, with no notified body involvement.
2014/30/EUEMCThe Electromagnetic Compatibility Directive. Covers both the interference a device emits into its environment (emission) and its resistance to interference from outside (immunity).
(AB) 206/2012EcodesignEcodesign requirements for air conditioners and comfort fans. Sets minimum thresholds and a declaration obligation for seasonal efficiency and sound power level.
(AB) 626/2011Energy LabelEnergy labelling for air conditioners. The class on the label is based on measurement and is one of the first points examined in market surveillance.
(EU) 2024/573F-GasThe Fluorinated Greenhouse Gases Regulation. The refrigerant type and its GWP value directly affect the product's placement on the market and labelling obligation.
2011/65/EURoHSRestriction of certain hazardous substances in electrical and electronic equipment; an integral part of the CE declaration.
2000/14/ATOutdoor NoiseNoise emitted into the environment by outdoor equipment. Whether the outdoor unit falls within scope is assessed according to product type.
(AB) 2019/2021EcodesignEcodesign requirements for electronic displays. Includes on-mode power consumption, standby mode and repairability requirements.
(AB) 2019/2013Energy LabelEnergy labelling for electronic displays. Requires a separate class declaration for SDR and HDR modes and EPREL registration.
2014/53/EUREDThe Radio Equipment Directive. For a product with a radio interface, spectrum, EMC and electrical safety are assessed together; the 3.3(d)(e)(f) cybersecurity articles also apply.
2012/19/ABWEEEWaste electrical and electronic equipment. Requires product marking and registration with the collection system.
(AB) 2019/2020EcodesignEcodesign requirements for light sources. Covers efficiency, colour consistency, switching-cycle durability and product-information requirements.
(AB) 2019/2015Energy LabelEnergy labelling for light sources. An A–G class and EPREL registration are mandatory.
(EC) 1907/2006REACHRegistration, evaluation, authorisation and restriction of chemicals. Creates a notification obligation for SVHC substances in the product's content.
(AB) 2019/1782Ecodesign (external power supplies)Ecodesign requirements for external power supplies. Sets minimum thresholds for loaded efficiency and no-load power consumption.
(AB) 2022/2380Common Charging InterfaceA common charging solution for certain radio equipment. Requires a USB-C interface and declaration of charging information on the label.
(EU) 2023/1542Batteries RegulationSustainability, safety and transparency for batteries. Carbon footprint declaration, recycled content and the battery passport apply on a staged timetable.
UN Manual of Tests and CriteriaUN 38.3Transport safety of lithium cells and batteries. The T1–T8 test series is applied in the defined order; shipment cannot proceed without a report.
(EU) 2023/988GPSRThe General Product Safety Regulation. Establishes a safety framework for aspects not covered by sector-specific legislation.
(EU) 2024/2847CRAThe Cyber Resilience Act. Cybersecurity requirements for products with digital elements; reporting from 11 September 2026, full application from 11 December 2027.
(AB) 1275/2008Ecodesign (networked standby)Minimum requirements for standby and off-mode power consumption in networked equipment.
(EU) 2022/2555NIS2 (indirect)Cybersecurity risk management for essential and important entities; a network-equipment supplier is affected through its customers' obligations.
(EU) 2016/679GDPR (indirect)Devices that process personal data incur a data-protection-by-design obligation.
(AB) 2023/1670Ecodesign (smartphones)Ecodesign requirements for smartphones and tablets. Sets requirements for durability, repairability, spare parts and software-update duration.
(AB) 2023/1669Energy Label (smartphones)Energy labelling for smartphones and tablets; battery life, drop resistance and a repair score are declared on the label.
(AB) 617/2013Ecodesign (computers)Ecodesign requirements for computers and servers. Includes requirements for annual energy consumption, standby mode and power management.
(AB) 2023/1804Alternative Fuels InfrastructureThe Regulation on the deployment of alternative fuels infrastructure. Governs connector type, payment and data-sharing requirements at public charging points.
2006/42/ATMachinery DirectiveRisk assessment, essential health and safety requirements and a technical-file obligation.
(EU) 2023/1230Machinery RegulationReplaces 2006/42/EC, mandatory on 20 January 2027 with no further transition period.
2014/68/EUPEDThe Pressure Equipment Directive for pressurised parts; the category is determined by pressure and volume.
2014/34/ABATEXEquipment and protective systems used in explosive atmospheres. The category and conformity route are determined by zone classification.
(AB) 547/2012Ecodesign (water pumps)Ecodesign requirements for water pumps. Sets minimum efficiency index and product-information requirements.
(AB) 2019/1781Ecodesign (electric motors)Efficiency class requirements for electric motors and variable-speed drives.
(AT) 1935/2004Food Contact MaterialsGeneral requirements for equipment in contact with food; material conformity is required for valves in food lines.
(AB) 2020/2184Drinking Water Contact ProductsHygiene requirements for materials in contact with water under the Drinking Water Directive.
2014/29/ABSimple Pressure VesselsA separate directive for series-produced simple pressure vessels; its scope must be distinguished from the PED.
2010/35/ABTransportable Pressure EquipmentThe pi mark and periodic inspection regime for transportable pressure equipment.
2009/48/ECToy SafetyThe Toy Safety Directive. Regulates mechanical, physical, flammability, chemical and electrical safety requirements together; a technical file and safety assessment are mandatory.
EN 62115Electrical toysSafety for electric toys; applies to mains-connected or battery-powered toys.
(AT) 1907/2006 Annex XVII item 51-52Phthalate RestrictionRestriction of certain phthalates in toys and childcare articles.
(AB) 2023/1464Formaldehyde EmissionRestriction on formaldehyde emission from wood-based products (an amendment to REACH Annex XVII).
(EU) 2023/1115Wood and Forest ProductsThe Deforestation Regulation. A deforestation-free supply declaration for wood and derived products; 30 December 2026 for large operators.
(EU) 2024/3110Construction Products (fixed furniture)The Construction Products Regulation's scope is assessed for furniture permanently fixed to a building.
(AB) 1007/2011Textile LabellingTextile fibre names and labelling. Declaration of fibre composition and regulation of the label language.
(AT) 1907/2006 Annex XVII item 43Azo Dye RestrictionRestriction of certain azo dyes in textiles in contact with skin.
(AB) 2019/1021PFAS / PFOA RestrictionRestriction of PFOA and its derivatives under the Persistent Organic Pollutants Regulation.
(EU) 2016/425Personal Protective Equipment (overlap)The PPE Regulation's scope and category are determined for textiles with a protective function.
(AB) 10/2011Plastics in Food ContactPlastic materials in contact with food. The list of authorised substances, and overall and specific migration limits.
(AT) 2023/2006Good Manufacturing PracticeGood manufacturing practice (GMP) for food-contact materials.
(AB) 2025/40Packaging and Packaging WasteThe Packaging and Packaging Waste Regulation. Recyclability, recycled-content and packaging-reduction obligations; replaces 94/62/EC.
(AB) 2022/1616Recycled PlasticRecycled plastic materials in contact with food.
(AB) 305/2011CPR (transition)Continues to apply during the transition period for product groups where a new harmonised standard has not been published.
EN 13501-1Reaction-to-Fire ClassificationReaction-to-fire class for construction products; a mandatory item of the declaration of performance.
(AT) 178/2002General Food LawThe general principles of food law, traceability and food safety responsibility.
(AT) 852/2004Food HygieneHygiene rules for food businesses and the obligation for a HACCP-based system.
(AB) 1169/2011Food Information to ConsumersFood labelling; nutrition declaration, allergen information and origin information.
(AB) 2023/915ContaminantsMaximum levels of contaminants in food.
(AT) 396/2005Pesticide residuesMaximum residue limits in food of plant and animal origin.
(AT) 2073/2005Microbiological CriteriaMicrobiological criteria for foodstuffs.

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Frequently Asked Questions

Is this standard mandatory for my product?

Whether it is mandatory depends on the product group, the target market and the applicable legislation. Once you tell us your product and market, we clarify in writing whether this standard is required.

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