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EN 10216

EN-10216-STEEL-PIPE

EN 10216 Seamless Pipe

At UNIACERO, we pride ourselves on adhering to the highest standards in steel tube manufacturing. EN 10216, a renowned European Standard, stands as a testament to our commitment to quality. This standard, sometimes referred to as Euronorm, is a collaborative effort of European Standards Organizations, ensuring transparency, openness, and consensus in its creation. As a key component of the Single European Market, EN 10216 facilitates trade and ensures that manufacturers like us can easily access markets across European countries. Our seamless steel tubes, manufactured under this standard, are designed for pressure purposes, ensuring durability and reliability for our clients.

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EN 10216 Specification

Our EN 10216 steel tubes are manufactured using the seamless process, ensuring a flawless finish and unparalleled strength. These tubes come in various steel grades, including P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, and P265TR2. The outer dimensions range from 14mm to 509mm, with a wall thickness between 2mm and 50mm. Our tubes are finished with a protective varnish to prevent rust, ensuring longevity. Whether you require plain ends, beveled ends, or treaded finishes, we cater to your specific needs, ensuring precision in every product.

Production StandardEN 10216
Manufacturing ProcessesSMLS (Hot finished Seamless)
SMLS (Cold Drawn Seamless)
Outside Diameter10.3mm – 711mm (1/8″ – 28″)
Wall Thickness1.6mm – 100mm
Pipe Length1.5 – 15 meters
Steel GradeEN10216 P195TR1EN10216 P235TR1EN10216 P265TR1
EN10216 P195TR2EN10216 P235TR2EN10216 P265TR2
Corrosion PreventionLacquer, Varnish, Oiling, Galvanizing
End ProcessesSquare Cut, Bevelling, Threading, Grooving
Further ProcessingWelding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding
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EN 10216 Dimension Table

schematic-diagram-of-pipe-dimension

Our EN 10216 steel tubes come in a range of dimensions to suit diverse applications. With outer dimensions ranging from 14mm to 509mm and wall thicknesses from 2mm to 50mm, we ensure that every tube meets the exact requirements of our clients. Whether you’re in the construction, automotive, or any other industry, our tubes are designed to fit seamlessly into your projects, ensuring structural integrity and longevity.

Outside
Diameter		Wall Thickness mm
mm1.61.82.02.32.62.93.23.64.04.55.05.66.37.18.08.8101112.514.21617.52022.22528303236404550556065708090100
10.2●●●●●                                  
12 ●●●●●●                                
12.7 ●●●●●●                                
13.5 ●●●●●●●                               
14 ●●●●●●●                               
16 ●●●●●●●●                              
17.2 ●●●●●●●●●                             
18  ●●●●●●●●                             
19  ●●●●●●●●●                            
20  ●●●●●●●●●                            
21.3  ●●●●●●●●●                            
22  ●●●●●●●●●                            
25  ●●●●●●●●●●●                          
25.4  ●●●●●●●●●●●                          
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                        ●●●●●●●●●●●●●●●
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Chemical Requirements of EN 10216

The chemical composition of our EN 10216 steel tubes is meticulously monitored to ensure the highest quality. For instance, our P235TR2 grade has a maximum carbon content of 0.16%, silicon at 0.35%, manganese at 1.20%, and other elements within specified limits. This careful balance of elements ensures the strength, durability, and reliability of our tubes, making them the preferred choice for various industries.

Chemical Composition（Cast Analysis）In % By Mass
Steel GradeC maxSi maxMn maxP maxS maxCr maxMo maxNi maxAl minCu maxNb maxTi maxV maxCr+Cu+Mo+Ni max
Steel NameSteel Number
P195TR11.01070.130.350.700.0250.0200.300.080.30–0.300.0100.040.020.70
P195TR21.01080.130.350.700.0250.0200.300.080.300.020.300.0100.040.020.70
P235TR11.02540.160.351.200.0250.0200.300.080.30–0.300.0100.040.020.70
P235TR21.02550.160.351.200.0250.0200.300.080.300.020.300.0100.040.020.70
P265TR11.02580.200.401.400.0250.0200.300.080.30–0.300.0100.040.020.70
P265TR21.02590.200.401.400.0250.0200.300.080.300.020.300.0100.040.020.70
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Mechanical Requirements of EN 10216

Our EN 10216 steel tubes are not just chemically superior but also excel in mechanical properties. For instance, the P235TR2 grade boasts an upper yield strength of 235 MPa for wall thicknesses up to 16mm, ensuring that our tubes can withstand significant pressure and stress. With tensile strengths ranging from 320 to 440 MPa and impressive elongation percentages, our tubes promise durability and resilience in even the most demanding applications.

Mechanical Properties
Steel GradeTensile PropertiesImpact Properties
Steel NameSteel NumberUpper Yield Strength ReH min.for Wall Thickness T mmTensile Strength RmElongation A min %MinimumAverage Absorbed Energy KV J At a Temperature of 0 ℃
T ≤ 1616 ＜ T ≤ 4040 ＜ T ≤ 60lt
MpaMpaMpaMpalt0-100
P195TR11.0107195185175320 to 4402725–––
P195TR21.0108195185175320 to 4402725402827
P235TR11.0254235225215360 to 5002523–––
P235TR21.0255235225215360 to 5002523402827
P265TR11.0258265255245410 to 5702119–––
P265TR21.0259265255245410 to 5702119402827
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Steel Grades in EN 10216

At UNIACERO, we offer a range of steel grades under the EN 10216 standard, including P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, and P265TR2. Each grade is tailored to specific applications and requirements, ensuring that our clients get the best fit for their projects. Whether you require tubes for room temperature applications or those with specified elevated temperature properties, we have a grade that meets your needs.

  • P195TR1
  • P195TR2
  • P235TR1
  • P235TR2
  • P265TR1
  • P265TR2
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Production Tolerance of EN 10216

We understand the importance of precision in every project. That’s why our EN 10216 steel tubes come with strict production tolerances. For tubes with an outside diameter of less than 219.1mm, we maintain a tolerance of ±1% or ±0.5mm, whichever is greater. For larger diameters, the tolerances vary based on the tube’s dimensions, ensuring that every tube fits perfectly into your project without any discrepancies.

Table  Tolerances on outside diameterand wall thickness Outside Diameter
Outside Diameter mmTolerances onTolerances on T for a T/D ratio
D ≤ 219,1±1%or ±0.5mm whichever is the grealer± 12,5% or: ±0.4mm whichever is the greater
D ＞ 219,1± 20%± 15%± 12.5%±10%
For outside diameters D ≥ 355,6 mm it is permitied to exceed the upper wall thickness locally by a further 5% of the wall thickness T
Table  Tolerances on inside diameter and wall thickness
Tolerance on inside diameterTolerances on T for a T/d ratio
dd min≤ 0,03＞0,03 ≤0,06＞0,06 ≤ 0,12＞0，12
±1% or±2mm whichever is the greater+2% -0, or +4mm，-0 whichever is the greater± 20%± 15%± 12.5%±10%
For outside diameters D ≥ 355,6 mm it is permitied to exceed the upper wall thickness locally by a further 5% of the wall thickness T
Table Tolerances on outside diameterand wall thickness Outside Diameter
Outside Diameter mmTolerances onTolerances on T for a T/D ratio
D ≤ 219,1±1%or ±0.5mm whichever is the greater+28% -0 or: + 8mm -0 whichever is the greater
D ＞ 219,1+50% -0+35% -0+38% -0+22% -0
For outside diameters D ≥ 355,6 mm it is permitied to exceed the upper wall thickness locally by a further 5% of the wall thickness T
Table Tolerances on inside diameter and minimum wall thickness
Tolerance on inside diameterTolerances on T for a T/d ratio
dd min≤ 0,05＞0,05 ≤0,1＞0,1
±1% or±2mm whichever is the greater+2% -0, or +4mm，-0 whichever is the greater+35%， -0+28%， -0+22%， -0
For outside diameters D ≥ 355,6 mm it is permitied to exceed the upper wall thickness locally by a further 5% of the wall thickness T
Table Tolerances on outside diameter and wall thickness for tube ordered cold finished
Tolerance on DTolerance on T
±0,5% or ±0,3mm whichever is the grealer±10% or ±0,2mm whichever is the grealer
Table Tolerances on exact lengths
Length LTolerance an exact lengh
L ≤ 6000+ 10， -0
6000 ＜ L ≤ 12000+ 15， -0
L ＞ 12000+ by agreement， -0

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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