dIN 1630

DIN-1630-STEEL-PIPE

DIN 1630 Steel Pipe

DIN 1630 is a high-performance standard for seamless circular unalloyed steel tubes, designed to meet the rigorous demands of various industries. Published by the renowned Deutsches Institut für Normung e.V. (DIN), the German Institute for Standardisation, this standard ensures the highest quality and performance. These tubes are not only robust but also versatile, predominantly used in the construction of chemical plants, vessels, pipework, and general mechanical engineering. With over thirty thousand DIN Standards covering nearly every technological field, DIN 1630 stands out as a testament to German engineering and precision.

DIN 1630 Specification

Our DIN 1630 steel tubes are manufactured with precision, ensuring they meet the high-performance requirements set by the standard. These tubes can withstand high pressures, and their permissible working temperature does not exceed 300°C. Made from premium materials like St37.4, St44.4, and St52.4, they offer durability and longevity. Our production process guarantees a smooth surface finish, and we offer various end types, joint methods, and machining services to cater to your specific needs.

Production StandardDIN1630
Manufacturing ProcessesSMLS (Hot Finished / Cold Drawn Seamless)
Outside Diameter10.3mm – 660mm (1/8″ – 26″)
Wall Thickness1.73mm – 65mm (SCH 5S – SCH 160)
Pipe Length3 – 12 mtrs meters
Steel GradeSt 37.4
St 44.4
St 52.4
Corrosion PreventionLacquer, Varnish, Oiling, Galvanizing
FBE, 2LPP, 3LPP, 2LPE, 3LPE
End ProcessesSquare Cut, Bevelling, Threading, Grooving , Shouldering
Further ProcessingWelding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

DIN 1630 Dimension Table

schematic-diagram-of-pipe-dimension

The DIN 1630 tubes we offer come in a range of dimensions to suit diverse applications. They have an outer diameter ranging from 10.3-711mm, a wall thickness between 2-100mm, and a length of 5.8m-12m or random length. These dimensions are meticulously maintained to ensure optimal performance and fit for your projects.

Outside DiameterTube Thickness (mm)
mm1.61.822.32.62.93.23.64.04.555.66.37.18.08.8101112.514.21617.52022.72528303236404550556065
10.2
13.5
16
17.2
19
20
21.3
25
25.4
26.9
30
31.8
33.7
38
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
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

Chemical Requirements of DIN 1630

Our DIN 1630 tubes adhere to strict chemical compositions to ensure their strength and durability. The tubes are fully killed, ensuring a uniform and stable chemical composition. Specific chemical requirements vary based on the steel grade, but all our tubes meet the stringent standards set by DIN.

High performance seamless circular unalloyed steel tubes
GradeMaterial NumberChemical Composition %Mechanical Properties
C max.Mn max.P max.S max.Si max.U.T.S Mpa (min.)Y.S.Mpa (min.)El%Impact Energy V Notch J
Longi.Tranv.Longi.Tranv.
St 37.41.02550.170≥0.350.0400.0400.035350 to 48023525234327
St 44.41.02570.200≥0.400.0400.0400.035420 to 55027521194327
St 52.41.05810.220≤1.600.0400.0350.550500 to 65035521194327

Mechanical Requirements of DIN 1630

Mechanical properties are crucial for the performance of steel tubes. Our DIN 1630 tubes boast impressive mechanical properties, including high yield and tensile strengths. These properties ensure that the tubes can withstand challenging conditions in various applications, from chemical plants to mechanical engineering projects.

High performance seamless circular unalloyed steel tubes
GradeMaterial NumberChemical Composition %Mechanical Properties
C max.Mn max.P max.S max.Si max.U.T.S Mpa (min.)Y.S.Mpa (min.)El%Impact Energy V Notch J
Longi.Tranv.Longi.Tranv.
St 37.41.02550.170≥0.350.0400.0400.035350 to 48023525234327
St 44.41.02570.200≥0.400.0400.0400.035420 to 55027521194327
St 52.41.05810.220≤1.600.0400.0350.550500 to 65035521194327

Steel Grades in DIN 1630

We offer DIN 1630 tubes in various steel grades, including St37.4, St44.4, and St52.4. Each grade has unique properties that make it suitable for specific applications. Whether you need tubes for high-pressure applications or general engineering, we have a grade that fits your requirements.

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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