EN 10219 vs. EN 10210: Analysis of the European standard for structural steel pipes

With the rapid development of the global construction and manufacturing industry,the quality and performance requirements of steel products continue to improve.Especially in the European market,steel pipe as an important basic material,widely used in building structures,transportation facilities,oil and gas,machinery manufacturing and other industries.In these areas,European standards ensure the quality and performance of steel pipes,but also promote the green development of the industry and technological innovation.EN 10219 and EN 10210 are two common steel pipe standards in the European market,which have their own characteristics in terms of production requirements,application scenarios and technical specifications.

This article will analyze EN 10219 and EN 10210 steel pipe standards in detail,compare their similarities and differences,discuss their importance and application in the European structural steel pipe industry,and help the relevant industry to better understand these standards,so as to provide guidance for the production,procurement and use of steel pipes.

I.Overview of EN 10219 standard

1.1 Definition and scope of application of EN 10219

EN 10219 is a standard issued by the European Committee for Standardization(CEN)for cold-formed welded structural steel pipes.This standard applies to cold-formed welded steel pipes,that is,steel pipes manufactured by cold forming methods,which are widely used in building structures,bridge construction,transportation facilities and other fields.

The EN 10219 standard includes the following:

Material requirements:including the chemical composition of the steel pipe,mechanical properties,dimensional tolerances,etc.

Manufacturing requirements:The production method of steel pipe,welding process,cold forming process and other technical details are described in detail.

Quality control:The quality requirements of each steel pipe are strictly regulated to ensure the performance of the product in harsh environments such as high strength and high pressure.

1.2 Classification of EN 10219

The EN 10219 standard divides cold-formed welded steel pipes into two categories:non-alloy steel pipes(EN 10219-1)and alloy steel pipes(EN 10219-2).These two types of steel pipes have certain differences in application,as follows:

Non-alloy steel pipe:suitable for conventional structural construction,common in building steel structures,Bridges,support systems,etc.

Alloy steel pipe:Due to the addition of alloying elements,this kind of steel pipe has stronger corrosion resistance,high temperature resistance and better mechanical properties,which is suitable for projects in special environments,such as oil and gas pipelines,heat exchangers and so on.

1.3 Common applications of EN 10219

EN 10219 steel pipes are commonly used in the following categories:

Building structure:Steel pipe,as an important load-bearing component,has a wide range of applications in modern building structures,especially in the construction of high-rise buildings,large Bridges,industrial plants and so on.

Bridge construction:Because of its high strength and light weight,steel pipe is widely used in the support and structural system of Bridges.

In the field of energy:In the construction of oil and gas pipelines,alloy steel pipes are manufactured according to EN 10219 and can withstand higher pressures and temperatures.

2.Overview of EN 10210 standard

2.1 Definition and scope of application of EN 10210

EN 10210 is another European standard for the steel pipe industry and is specifically designed for the production and application of hot-rolled steel pipes.Unlike EN 10219,EN 10210 mainly covers the relevant requirements of hot-rolled seamless steel pipes and is mainly used in structures that need to withstand higher pressures and high temperatures.

The EN 10210 standard includes:

Material requirements:The material requirements of the steel pipe are strict,covering the chemical composition and physical properties of different alloy and non-alloy steel.

Production process requirements:the hot rolling process of steel pipe is clearly specified,especially for the requirements of cooling speed and dimensional accuracy of steel pipe in the production process.

Inspection and quality control:including steel pipe size,wall thickness,mechanical properties and other quality inspection standards to ensure that the steel pipe meets the relevant performance requirements.

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2.2 Classification of EN 10210

The EN 10210 standard divides hot-rolled steel pipes into two categories:

Non-alloy steel pipe:used in common building and structural engineering,such as industrial facilities,storage facilities,etc.

Alloy steel pipe:Due to the addition of alloying elements,this kind of steel pipe has higher strength,corrosion resistance and better high temperature resistance,suitable for more demanding environments,such as high temperature and high pressure energy facilities.

2.3 Common applications of EN 10210

Hot-rolled steel pipes according to EN 10210 are mainly used in the following aspects:

High temperature and high pressure equipment:such as boilers,pressure vessels and other equipment with high strength requirements.

Industrial structure:including pipe support,industrial plant and other heavy structures.

Energy industry:Especially in oil and natural gas pipelines,alloy steel pipes are often used,which have good corrosion resistance and high temperature resistance.

Iii.Differences between EN 10219 and EN 10210

3.1 Differences in production process

The EN 10219 standard is mainly concerned with the production process of cold-formed welded steel pipes.Cold-formed welded steel pipe is made of steel strip or steel plate by cold forming technology and welding process.Because there is no heating in the production process,the internal stress of the steel pipe is small,and the surface quality is high,which is suitable for conventional buildings and structures.

EN 10210 refers to the production process of hot-rolled steel pipes,which are heated,rolled and then cooled.The production process of hot-rolled steel pipe is relatively complex,suitable for applications with higher temperatures and pressures,and is often used in structures with high strength requirements and pipelines in high temperature environments.

3.2 Steel pipe application scenarios are different

Cold-formed welded steel pipes according to EN 10219 are usually used in fields with high bearing capacity requirements such as building structures and bridge construction,and are suitable for conventional building and structural engineering.

The EN 10210 hot-rolled steel pipe is more commonly used in high-temperature and high-pressure environments,such as boilers,oil and gas pipelines,and high-temperature equipment construction.

3.3 Differences in material and performance requirements

The EN 10219 standard has broad material requirements for steel pipes,covering different non-alloy steels and alloy steels,focusing on the mechanical properties and weldability of steel pipes.

The EN 10210 standard has more stringent requirements for alloy steels,especially for performance requirements in high temperature environments,including strength,corrosion resistance and high temperature resistance.

3.4 Different production devices are applicable

Due to the process differences between cold-formed welding and hot-rolling production,the production of steel pipes according to EN 10219 mainly relies on cold forming machines and welding equipment,while the production of steel pipes according to EN 10210 relies on equipment such as hot rolling mills and high-temperature heating furnaces.

4.Basis for selection of EN 10219 and EN 10210

When choosing EN 10219 and EN 10210 steel pipes,companies need to decide according to the specific application needs:

Environmental requirements:If the project involves high temperature and high pressure and other harsh environment,it is recommended to choose the steel pipe of EN 10210 standard.If the application environment is more conventional,can choose EN 10219 standard steel pipe.

Performance requirements:For pipelines requiring high corrosion resistance and high temperature resistance,EN 10210 steel pipes are more suitable.For conventional buildings and infrastructure,EN 10219 steel pipes are sufficient to meet demand.

Production process:Cold-formed welded steel pipe(EN 10219)is more cost-effective if it is for steel pipes in areas such as building structures;For high-strength pipelines in the energy,oil and gas industries,hot-rolled steel pipes(EN 10210)are the preferred choice.

5.Conclusion

EN 10219 and EN 10210 are important European standards in the field of structural steel pipes and play an important role in the production and application of steel pipes.There are significant differences between the two in terms of production process,steel pipe application field,material requirements,etc.,and choosing the right standard is crucial to ensure the quality of the project.With the continuous advancement of technology and the improvement of global requirements for green and low-carbon manufacturing,these standards will continue to provide high-quality,high-performance steel pipe solutions for the construction,energy and other industries.Understanding and correctly selecting EN 10219 and EN 10210 will provide companies with significant technical advantages and help them gain a foothold in the global market.