EN 10219 vs EN 10210: European Standards for Steel Pipes Explained

At a Glance

• EN 10219 covers cold-formed welded structural hollow sections, while EN 10210 specifies hot-finished hollow sections with superior mechanical properties
• Both standards are harmonized under the EU Construction Products Regulation (CPR), requiring CE marking for legal sale in European markets
• EN 10210 sections offer 10-20% higher impact toughness and more uniform mechanical properties compared to EN 10219
• Selection between standards depends on application requirements, load conditions, and budget constraints

Understanding the Basics

European structural hollow section standards EN 10219 and EN 10210 serve as the foundational specifications for steel hollow profiles used in construction, engineering, and manufacturing applications across Europe and globally. Both standards are harmonized under EU Construction Products Regulation (CPR) 305/2011, making CE marking mandatory for products placed on the European market.

Understanding the differences between these standards is essential for architects, structural engineers, and procurement professionals involved in European construction projects. The wrong specification can result in inadequate structural performance, non-compliance with building regulations, or unnecessary cost overruns.

The global market for structural hollow sections continues expanding, with Europe consuming approximately 25-30 million tonnes annually, driven by construction demand and infrastructure development across the continent.

Manufacturing Process Differences

EN 10219: Cold-Formed Welded Sections

EN 10219 covers cold-formed welded structural hollow sections manufactured at ambient temperatures:

Manufacturing Process:

1. Strip Preparation: Steel coils are slit to required widths

2. Cold Forming: Strip passes through consecutive forming rolls, bending steel at room temperature

3. Welding: High-frequency electric resistance welding joins the longitudinal seam

4. Sizing: Tubes are sized to final dimensions through sizing stands

5. Delivery Condition: Pipes are delivered in the as-welded (hot-rolled strip condition) state without additional heat treatment

Material Characteristics:

• Cold working increases yield and tensile strength by 15-30% in the formed section
• Corner regions experience significant strain hardening
• Weld seam has different microstructure than base metal
• Higher residual stresses due to cold working
• Material properties vary through the section thickness

EN 10210: Hot-Finished Sections

EN 10210 covers hot-finished structural hollow sections with final heat treatment:

Manufacturing Process:

1. Hot Forming: Steel is formed at elevated temperatures (approximately 900°C)

2. Welding: Longitudinal weld seam is completed (if applicable)

3. Heat Treatment: Entire section undergoes normalizing (or equivalent heat treatment)

4. Cooling: Controlled cooling in still air

5. Delivery Condition: Pipes are delivered in the normalized condition

Material Characteristics:

• Normalizing produces uniform grain structure throughout
• Mechanical properties are consistent across the section
• Weld seam achieves similar properties to base metal through heat treatment
• Lower residual stresses compared to cold-formed sections
• Superior ductility and impact toughness

Mechanical Properties Comparison

Strength Properties

The different manufacturing processes result in distinct strength characteristics:

Property	EN 10219 (Cold-Formed)	EN 10210 (Hot-Finished)
Yield Strength	235-460 MPa (S235-S460)	235-460 MPa (S235-S460)
Tensile Strength	Similar to EN 10210	Similar to EN 10219
Elongation	Generally lower	Generally higher
Impact Toughness	Moderate	Superior (10-20% higher)
Property Uniformity	Varies through section	Consistent through section

Impact Toughness Requirements

EN 10210 specifies more stringent impact requirements:

EN 10210 Impact Requirements (minimum Charpy V-notch values):

Grade Designation	Temperature	Average Impact Energy
JR	+20°C	27J
J0	0°C	27J
J2	-20°C	27J
K2	-20°C	40J
NH	-20°C	27J
NLH	-50°C	27J

EN 10219 Impact Requirements are similar but depend on specified delivery condition.

Buckling Strength Considerations

European structural design codes (Eurocode 3) recognize the performance difference:

• Hot-finished sections (EN 10210): Use higher buckling curves (curve ‘a’)
• Cold-formed sections (EN 10219): Use lower buckling curves (curve ‘b’)

This distinction results in 5-15% lower design buckling resistance for equivalent EN 10219 sections compared to EN 10210, requiring larger sections or higher grades for cold-formed products.

Steel Grades

Common EN 10210 Grades

EN 10210 grades indicate minimum yield strength and impact quality:

Grade	Min. Yield Strength	Impact Temperature	Typical Applications
S235JRH	235 MPa	+20°C	Standard structures
S275J0H	275 MPa	0°C	Moderate loading
S275J2H	275 MPa	-20°C	Low temperature
S355J0H	355 MPa	0°C	Higher loading
S355J2H	355 MPa	-20°C	Demanding conditions
S355K2H	355 MPa	-20°C	Severe conditions
S460NH/NLH	460 MPa	-20°C/-50°C	High-strength applications

Common EN 10219 Grades

Similar grade designations with additional fine-grain steel options:

Grade	Min. Yield Strength	Characteristics
S235JRH	235 MPa	Standard, non-alloy
S275J0H/J2H	275 MPa	Improved toughness
S355J0H/J2H	355 MPa	Higher strength
S355K2H	355 MPa	Superior toughness
S275NH/NLH	275 MPa	Fine-grain, low temp
S355NH/NLH	355 MPa	Fine-grain, high strength
S460NH/NLH	460 MPa	Fine-grain, maximum strength

Dimensional Tolerances

EN 10210 Tolerances

Hot-finished sections generally have broader dimensional tolerances:

Dimension	Tolerance
Outside diameter	±1% (min ±0.5mm, max ±10mm)
Wall thickness	±10% (for t ≤ 5mm); ±8% (for t > 5mm)
Out-of-roundness	2% for circular sections
Corner radius	Tight radii (approximately 1.5-2.0 × wall thickness)
Length	+50mm/-0mm

EN 10219 Tolerances

Cold-formed sections have tighter dimensional tolerances:

Dimension	Tolerance
Outside diameter	±0.5mm (≤ 100mm); ±0.5% (> 100mm)
Wall thickness	±10%
Out-of-roundness	Included in diameter tolerance
Corner radius	Larger radii (minimum 2.0-3.0 × wall thickness)
Length	+10mm/-0mm

The larger corner radii in EN 10219 accommodate the strain hardening effects of cold forming.

Weldability Considerations

EN 10210 Weldability

Hot-finished sections offer excellent weldability:

• Uniform chemistry and grain structure through heat treatment
• Weld seam achieves properties similar to base metal
• No restrictions on welding location within the section
• Standard welding procedures applicable without special precautions

EN 10219 Weldability

Cold-formed sections require additional considerations:

• Higher carbon equivalent values in corner regions due to cold working
• Eurocode 3 (EN 1993-1-8) specifies welding restrictions:

– Welding not permitted within 5t of corners for high strain sections

– Special filler materials may be required for thick sections

• Fully killed (aluminum-deoxidized) steel is mandatory
• Post-weld heat treatment may be beneficial for thick sections

CE Marking Requirements

Both EN 10219 and EN 10210 are harmonized under CPR 305/2011, requiring CE marking:

Declaration of Performance (DoP)

Manufacturers must provide a Declaration of Performance documenting:

• Essential characteristics per the relevant harmonized technical specification
• Intended use(s) for the product
• System of assessment and verification of constancy of performance (AVCP)
• Declared values for relevant characteristics

AVCP Systems

Product Area	AVCP System	Requirements
Structural hollow sections	System 2+	Factory production control + initial type testing
System 4	Factory production control (performance stability)

Most structural hollow sections fall under System 2+, requiring:

• Initial type testing by notified laboratory
• Factory Production Control (FPC) certification by notified body
• Continuous FPC surveillance
• Audit testing of samples

Critical Documentation

For CE marking compliance, obtain:

1. Declaration of Performance (DoP) from manufacturer

2. CE marking applied to product or accompanying documentation

3. FPC certificate from notified body

4. Traceability to specific production lots

Application Selection Guide

Choose EN 10210 When:

1. Dynamic loading conditions: Structures subject to vibration, seismic, or cyclic loading

2. Low-temperature service: Applications below 0°C requiring superior toughness

3. Critical structural elements: Load-bearing columns, beams, and connections

4. Branch weld connections: Applications requiring welding at corners

5. Fire resistance requirements: Structures requiring controlled failure modes

6. Large, complex sections: Heavy-wall sections for demanding applications

Choose EN 10219 When:

1. Static loading only: Structures with primarily static load conditions

2. Architectural applications: Visible structures where dimensional precision matters

3. Budget constraints: Projects where EN 10219 properties are adequate

4. Standard structural frames: Regular building frames with moderate loading

5. Secondary structural elements: Non-critical members with lower load demands

6. High-volume projects: Large quantities where minor property differences don’t impact design

Cost Comparison

Factor	EN 10219	EN 10210
Raw material cost	Similar	Similar
Manufacturing complexity	Lower	Higher
Production rate	Higher	Lower
Heat treatment	None	Required
Quality control costs	Moderate	Higher
Total cost premium	Baseline	5-15% higher

The 5-15% cost premium for EN 10210 reflects the additional heat treatment and stricter manufacturing controls required.

Final Recommendation

Understanding EN 10219 and EN 10210 differences enables informed specification and procurement:

Key recommendations:

1. Always specify by standard number in tender documents to avoid ambiguity

2. Consider structural requirements when selecting between cold-formed and hot-finished

3. Verify CE marking compliance before accepting deliveries

4. Request mill test certificates documenting mechanical properties and chemical composition

5. Consult structural engineers for critical applications

EN 10210 remains the preferred choice for demanding structural applications where superior toughness, uniform properties, and reliable weldability justify the modest cost premium. EN 10219 provides adequate performance for many standard construction applications at lower cost.

Createel International Limited supplies both EN 10219 and EN 10210 structural hollow sections with full CE marking compliance and comprehensive documentation for European construction projects.

EN 10219 and EN 10210 Hollow Sections at CREATEEL

We supply square, rectangular, and round hollow sections to both EN 10219 (cold-formed, non-alloy/structural) and EN 10210 (hot-finished, non-alloy/fine-grain) — with EN 10204 3.1 MTC and third-party inspection available.

Parameter	EN 10210	EN 10219
Process	Hot-finished (formed and welded at high temperature)	Cold-formed (formed at room temperature, no HT)
Grades	S235JRH, S275J0H, S355J0H, S355J2H, S275NH/NL, S355NH/NL, S460NH	S235JRH, S275J0H, S355J0H, S355J2H, S420MH, S460MH
Impact Test	J0: 27J@0°C; J2: 27J@−20°C; NH: −20/−50°C	J0: 0°C; J2: −20°C
Sections	RHS/SHS/CHS 40×40 – 500×500 mm, wall 4–40 mm	RHS/SHS/CHS 15×15 – 400×400 mm, wall 1.5–16 mm
CE Marking (CPR)	EN 10210-1 with DoP (System 2+)	EN 10219-1 with DoP
Tolerances	EN 10210-2 (hot-finished tolerances)	EN 10219-2 (cold-formed tighter tolerances)
Typical Use	Columns, heavy structures, offshore, cranes	Light structures, lattice, machinery frames, rollforming input

Answers to Common Questions

Q: Can EN 10219 and EN 10210 sections be used interchangeably?

A: Not always. While dimensions may be similar, the different mechanical properties and buckling curves mean they cannot be substituted without structural recalculation. Always verify adequacy by qualified engineers.

Q: What does CE marking mean for structural hollow sections?

A: CE marking indicates the product complies with the relevant harmonized European standard and has been manufactured under an approved Factory Production Control system. It is mandatory for legal sale in the EU construction market.

Q: Which standard should I specify for seismic applications?

A: EN 10210 is generally preferred for seismic applications due to superior impact toughness, controlled ductility, and predictable failure modes. Consult relevant seismic design codes for specific requirements.

Q: What is the maximum size available for each standard?

A: EN 10210 covers circular sections up to 2,500mm diameter and square sections up to 800mm. EN 10219 covers similar ranges but with tighter corner radii in cold-formed products.

Q: How do I verify material grade and standard compliance?

A: Request Mill Test Certificates documenting heat number, chemical analysis, mechanical properties (including impact test results), and compliance statement referencing the specific standard and grade.