EN 10224

carbon steel pipes

EN 10224 Steel Tube

EN 10224, a renowned standard published by European Standards, often referred to as Euronorm is a testament to quality and reliability in the steel industry. This standard, ratified by European Standards Organizations, is a result of a transparent, open, and consensual process involving all standards organizations and interested parties. As a leading international trading company, UNIACERO ensures that our steel pipes, specifically the EN 10224 tubes, adhere to this standard, guaranteeing our clients top-notch quality. Our pipes are not just tubes; they are a reflection of Europe’s commitment to quality, facilitating trade, and ensuring a seamless market experience.

EN 10224 Specification

Our EN 10224 steel pipes are crafted with precision, ensuring they meet the stringent requirements of the standard. Manufactured using both seamless and welded processes, these pipes are available in grades L235, L275, and L355. They come with a variety of finishes, including polished, annealed, pickled, and machined. Whether you need them plain, beveled, or threaded, we’ve got you covered. Moreover, our pipes can be welded using filler materials, ensuring durability and longevity.

Production StandardEN10224
Manufacturing ProcessesBW  ERW  SMLS  SAW
Outside DiameterBW: 26.9-114.3mm
ERW:26.9-610mm
SMLS:26.9mm -711mm
SAW: 168.3-2743mm
Wall ThicknessBW: 2-6.3mm
ERW:1.4-16mm
SMLS: 2-100mm
SAW: 6.3-50mm
Pipe Length3-18m
Steel GradeL235 L275 L355
Corrosion PreventionLacquer, Varnish, Oiling, Galvanizing,PE
End ProcessesSquare Cut, Bevelling, Threading, Socket
Further ProcessingWelding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

EN 10224 Dimension Table

schematic-diagram-of-pipe-dimension

The dimensions of our EN 10224 steel pipes are meticulously crafted to meet industry standards. With an outside diameter ranging from 26.9mm to 323.9mm, and wall thickness as specified by EN 10224, our pipes are versatile and suitable for various applications. Whether you need them for large-scale industrial projects or specific custom requirements, our pipes are tailored to fit your needs.

Outside Diameter mmWall Thickness mm
2.02.32.62.93.23.64.04.55.05.45.66.37.18.08.8101112.514.21617.52022.225
26.9
30
31.8
32
33.7
35
38
40
42.4
44.5
48.3
51
54
57
60.3
63.5
70
73
76.1
82.5
88.9
101.6
108
114.3
127
133
139.7
141.3
152.4
159
168.3
177.8
193.7
219.1
244.5
273
323.9
355.6
406.4
457
508
559
610
660
711
762
813
864
914
1016
1067
1118
1168
1219
1321
1422
1524
1626
1727
1829
1930
2032
2134
2235
2337
2438
2540
2642
2743

Chemical Requirements of EN 10224

At UNIACERO, we understand the importance of chemical composition in determining the quality and durability of steel pipes. Our pipes are manufactured with a specific chemical composition that adheres to the EN 10224 standard. This ensures that they are resistant to corrosion, wear, and other environmental factors, offering longevity and consistent performance.

Steel GradeC %Si %Mn %P %S %
Steel NameSteel Numbermaxmaxmaxmaxmax
L23502520.160.351.20.030.025
L27502600.20.41.40.030.025
L35504190.220.551.60.030.025

Mechanical Requirements of EN10224

Our steel pipes are designed to withstand the rigors of various applications. They boast mechanical properties that meet the EN 10224 standard, ensuring strength, durability, and resilience. By adhering to these mechanical requirements, our pipes offer superior performance, reducing maintenance costs and ensuring long-term reliability.

Steel NameTensile Strength Rm MPaMinimum Yield Strength Re MPa For Thickness in mmMinimum Elongation A % (Lo*5.65√So)Diameter Of Mandrel For The Weld Bend TestFor The Drift Expanding Test % Increase In d/D Ratio
T ≤ 16T > 16lt≤0.8>0.8
L235360 to 50023522525233T1012
L275430 to 57027526521194T810
L355500 to 65035534521194T68

Steel Grades in EN 10224

We offer steel pipes in various grades to cater to different industry needs. Our range includes Grade L235, L275, and L355. Each grade is designed with specific applications in mind, ensuring optimal performance and durability. Whether you’re looking for pipes for water conveyance or other aqueous liquids, we have a grade that fits your requirements.

Production Tolerance of EN 10224

Precision is key in the steel industry. Our EN 10224 L275 Carbon Steel Seamless Tubes come with standard length tolerances, ensuring consistency in every product. With tolerances ranging from +/- 1.0 for OD 30-100 mm to +/- 6.0 for lengths up to 5000 mm, we ensure that our pipes meet the exact specifications required for your projects.

Table Tolerance for exact length
LengthL mmTolerance on legnth
Tube outside diameter
<406,4mm≥406,4mm
2000 <L ≤6000+10, 0 mm+25, 0 mm
6000 <L ≤12000+15, 0 mm+50, 0 mm
L> 12000+by agreement, 0 mm

Our Advantages

  1. Over 25 years of experience in pipeline production and installation.
  2. Comprehensive inspection equipment.
  3. Independent product serial numbers for traceability.
  4. Advanced production equipment – Seamer high-frequency welding machine from the United States.
  5. Complete qualifications – API 5L/API 5CT/FM/UL fire pipe certification, etc.
  6. Wide range of products – independently developed solar torque tubes, highly favored in the European market.
  7. Customers spread across the globe.
  8. Excellent after-sales service and sense of responsibility.

Application Scenarios

Our steel pipes are engineered to withstand high temperatures, corrosive environments, and varying pressures, ensuring reliability and safety in the complex petrochemical processes. 

Whether it’s transferring crude oil, natural gas, or chemical intermediates, the robustness and versatility of steel pipes make them indispensable components of the plant’s infrastructure, contributing to efficient production and maintenance of stringent safety standards.

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