dIN 1626

DIN-1626-STEEL-PIPE-GOST-10704

DIN 1626 Steel Pipe

DIN 1626 Welded circular unalloyed steel tubes are subject to special requirements and technical delivery conditions. Manufactured with precision, these steel tubes are designed to meet the highest standards set by the Deutsches Institut für Normung e.V. (DIN), the German Institute for Standardisation. As an international trading company, UNIACERO ensures that these steel pipes are of top-notch quality, catering to the specific needs of industries worldwide. Our production process, backed by the stringent guidelines of DIN, guarantees durability, reliability, and efficiency in every product.

DIN 1626 Specification

Our DIN 1626 steel tubes come in various specifications to cater to diverse industrial requirements. The steel grades available are St 37.0, St 44.0, and St 52.0. The tubes undergo rigorous production procedures, ensuring their robustness and longevity. They are available in different surface coatings, end types, joint methods, and offer a range of machining services. Every tube is crafted with precision, ensuring they meet the highest industry standards.

Standard NameDIN1626
ProcedureERWLSAWSSAWSMLS
ApplicationFor petroleum/ natural gas pipelines, for conveying water, drainage, coal gas, mineral, slurry, and other low-middle pressure liquids.
Also for the chemical industry, building, structure, heat-supply and pile-driving projects
Steel GradeUSt37.0St37.0St44.0St52.0
Out Diameter6-820mm
Wall ThicknessSCH10- SCH XXS
Length5.8m 6m 12m or as customer demand
Steel GradeUpper yield strength values for a design temperature of
50℃200℃250℃300℃
SymbolMaterial
Number
and a wall thickness
≤16mm>16≤40mm≤16mm>16≤40mm≤16mm>16≤40mm≤16mm>16≤40mm
N/mm2
USt37.01.0253235185165140
St37.01.0254235225185175165155140135
St44.01.0256275265215205195185165160
St52.01.0421355345245225225215195190
Corrosion PreventionLacquer, Varnish, Oiling, Galvanizing
FBE, 2LPP, 3LPP, 2LPE, 3LPE
End ProcessesSquare Cut, Bevelling, Threading, Grooving
Further ProcessingWelding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

DIN 1626 Dimension Table

schematic-diagram-of-pipe-dimension

The DIN 1626 steel tubes are available in a range of sizes. The outer dimensions range from 4.0mm to 60.0mm, with a wall thickness varying between 0.5mm to 8mm. These dimensions are meticulously maintained to ensure that the tubes fit perfectly in their intended applications, ensuring efficiency and safety.

Outside diameter mmNominal Thickness mmOther Thickness, mm
1.41.61.822.32.62.93.23.644.555.66.37.188.8101112.514.21617.52022.2252830323640
10.21.6                         
13.51.8                      
161.8                      
17.21.8                     
192                     
202                     
21.32                    
252                   
25.42                   
26.92                   
302                 
31.82                
33.72               
382.3              
42.42.3              
44.52.3              
48.32.3              
512.3              
542.3             
572.3             
60.32.3             
63.52.3              
702.6              
732.6              
76.12.6              
82.52.6              
88.92.9              
101.62.9                
1082.9               
114.33.2               
1273.2               
1333.6               
139.73.6               
152.44               
1594               
168.34                  
177.84.5                  
193.74.5                  
219.14.5                  
244.55                  
2735                  
323.95.6                  
355.65.6                  
406.46.3                   
4576.3                   
5086.3                 
5596.3                 
6106.3              
6607.1             
7117.1            
7628           
8138          
8648.8          
91410          
101610          
1220             
1420              
1620               
1820                 
2020                  
2220                  

Chemical Requirements of DIN 1626

The chemical composition of our DIN 1626 steel tubes is strictly maintained to ensure their strength and durability. Each tube is crafted with a specific mix of elements, ensuring they can withstand varying conditions and pressures. This careful composition ensures that the tubes remain corrosion-resistant, durable, and efficient in their performance.

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
P195TR11.01070.130.350.700.0250.0200.300.080.300.300.0100.040.020.70
P195TR21.01080.130.350.700.0250.0200.300.080.300.020.300.0100.040.020.70
P235TR11.02540.160.351.200.0250.0200.300.080.300.300.0100.040.020.70
P235TR21.02550.160.351.200.0250.0200.300.080.300.020.300.0100.040.020.70
P265TR11.02580.200.401.400.0250.0200.300.080.300.300.0100.040.020.70
P265TR21.02590.200.401.400.0250.0200.300.080.300.020.300.0100.040.020.70

Mechanical Requirements of DIN 1626

Our DIN 1626 steel tubes are designed to meet specific mechanical requirements. They are crafted to withstand high pressures, temperatures, and stresses, ensuring their longevity and reliability. Each tube undergoes rigorous testing to ensure they meet the mechanical standards set by DIN, guaranteeing their performance in even the most demanding conditions.

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

Steel Grades in DIN 1626

The steel grades available for our DIN 1626 tubes are St 37.0, St 44.0, and St 52.0. Each grade offers unique properties, ensuring that they cater to various industrial needs. These grades are chosen based on their strength, durability, and resistance to wear and tear, ensuring that our clients receive only the best.

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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