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EN 10217 is an important European standard for welded steel pipes for pressure-bearing use, which specifies in detail the technical conditions for the delivery of steel pipes. Below, I will sort out for you the specific requirements of this standard, the steel grades it covers, the available processing techniques, and the unique features of this type of steel pipe.

EN 10217 is a series of standards, which are divided into multiple parts for different operating conditions:

Standard	Application Range	Main steel grade
EN 10217-1	Non-alloy steel for room temperature application	TR1, TR2 (P235)
EN 10217-2	Non-alloy and alloy steels for high-temperature applications	P235GH, P265GH
EN 10217-3	Fine-grained welded steel pipe	-
EN 10217-4	Non-alloy steel for low-temperature applications	-
EN 10217-5	Submerged arc welded steel pipes for high-temperature applications	-
EN 10217-6	Non-alloy steel submerged arc welded pipes with specified low-temperature performance	P215NL, P265NL
EN 10217-7	Stainless steel tubes	1.4301/304, 1.4401/316, 1.4404/316L

Steel pipes under the EN 10217 standard have good machinability. Common subsequent processes include:

Fixed-length cutting can be carried out as required.

The steel pipe itself can be manufactured by methods such as resistance welding (ERW), submerged arc welding (SAW), TIG welding, plasma welding or laser welding, and further welding assembly is also supported.

It can be used to manufacture pipe fittings or structural components.

such as pickling and passivation (especially crucial for stainless steel pipes), epoxy resin coating, asphalt coating, 3PE anti-corrosion, etc.

such as normalizing (for carbon steel pipes) or solution treatment (for stainless steel pipes to restore corrosion resistance and plasticity).

It can perform thread turning, beveling, etc.

The requirements for steel pipes in EN 10217 are very comprehensive, mainly including:

There are strict upper limit regulations on the content of elements such as carbon (C), silicon (Si), manganese (Mn), phosphorus (P), and sulfur (S) for all steel grades.

For instance, the carbon content of P235GH should not exceed 0.16%, and the phosphorus and sulfur contents are both required to be relatively low.

Stainless steel pipes such as 316L are required to have an extremely low carbon content (up to 0.03% at most) and contain specific elements of chromium, nickel and molybdenum.

It stipulates the minimum requirements for tensile strength, yield strength, elongation, etc. For instance, the lower limit of the yield strength of P235GH is 235MPa. The tensile strength of 316L stainless steel pipes should be ≥485MPa, and the yield strength should be ≥170MPa.

③ Geometric Dimensions and tolerances:

Strictly stipulate the allowable deviations of outer diameter and wall thickness as well as the length range.

④ Non-destructive Testing (NDT) :

Depending on the category and application of the steel pipe, hydrostatic testing, eddy current testing, ultrasonic testing, radiographic testing, etc. are required to ensure its pressure-bearing sealing performance and weld quality.

⑤ Inspection and Certificates:

Inspection certificates of Class 3.1B or 3.2 in compliance with EN 10204 standard are often attached upon delivery.

Steel pipes under the EN 10217 standard are widely recognized due to some of their core advantages:

① Reliability Assurance:

A strict standard system (from material, manufacturing to inspection) ensures the safety and reliability of steel pipes under high pressure, high temperature, low temperature or corrosive environments.

Its steel pipe products almost cover all industrial fields, such as petrochemicals, power station boilers, shipbuilding, mechanical equipment, food and pharmaceuticals, water treatment, etc.

The standards cover steel pipes manufactured by various welding processes such as resistance welding and submerged arc welding; The materials range from carbon steel, low alloy steel to austenitic stainless steel, which can meet the requirements of different corrosive environments.

As a European standard, it enjoys a high reputation internationally, facilitating equipment procurement and material certification for global projects.

The EN 10217 standard is an important specification in the field of pressure-bearing welded steel pipes. It ensures the high quality, safety and reliability of steel pipes by specifying different working conditions in parts, clarifying steel grades and chemical compositions, strictly controlling mechanical property indicators, stipulating multiple non-destructive testing methods, and supporting various subsequent processing techniques. These features make it the preferred choice in many demanding industrial applications.

EN 10217 PIPE

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EN 10217 is a series of standards, which are divided into multiple parts for different operating conditions:

Standard	Application Range	Main steel grade
EN 10217-1	Non-alloy steel for room temperature application	TR1, TR2 (P235)
EN 10217-2	Non-alloy and alloy steels for high-temperature applications	P235GH, P265GH
EN 10217-3	Fine-grained welded steel pipe	-
EN 10217-4	Non-alloy steel for low-temperature applications	-
EN 10217-5	Submerged arc welded steel pipes for high-temperature applications	-
EN 10217-6	Non-alloy steel submerged arc welded pipes with specified low-temperature performance	P215NL, P265NL
EN 10217-7	Stainless steel tubes	1.4301/304, 1.4401/316, 1.4404/316L

Steel pipes under the EN 10217 standard have good machinability. Common subsequent processes include:

Fixed-length cutting can be carried out as required.

It can be used to manufacture pipe fittings or structural components.

such as pickling and passivation (especially crucial for stainless steel pipes), epoxy resin coating, asphalt coating, 3PE anti-corrosion, etc.

such as normalizing (for carbon steel pipes) or solution treatment (for stainless steel pipes to restore corrosion resistance and plasticity).

It can perform thread turning, beveling, etc.

The requirements for steel pipes in EN 10217 are very comprehensive, mainly including:

There are strict upper limit regulations on the content of elements such as carbon (C), silicon (Si), manganese (Mn), phosphorus (P), and sulfur (S) for all steel grades.

For instance, the carbon content of P235GH should not exceed 0.16%, and the phosphorus and sulfur contents are both required to be relatively low.

Stainless steel pipes such as 316L are required to have an extremely low carbon content (up to 0.03% at most) and contain specific elements of chromium, nickel and molybdenum.

③ Geometric Dimensions and tolerances:

Strictly stipulate the allowable deviations of outer diameter and wall thickness as well as the length range.

④ Non-destructive Testing (NDT) :

⑤ Inspection and Certificates:

Inspection certificates of Class 3.1B or 3.2 in compliance with EN 10204 standard are often attached upon delivery.

Steel pipes under the EN 10217 standard are widely recognized due to some of their core advantages:

① Reliability Assurance:

Its steel pipe products almost cover all industrial fields, such as petrochemicals, power station boilers, shipbuilding, mechanical equipment, food and pharmaceuticals, water treatment, etc.

As a European standard, it enjoys a high reputation internationally, facilitating equipment procurement and material certification for global projects.

1。Standard overview and differences among its parts

2.Feasible processing techniques

① Cutting:

② Welding:

③ Cold working forming:

④ Surface treatment:

⑤ Heat treatment:

⑥ Machining:

3.The specific technical requirements of standard

① Chemical composition:

② Mechanical properties:

4.The uniqueness of steel pipes

② Wide application:

③ Diverse processes and materials:

④ High international recognition:

Summary