EN 10255 Steel Pipe
EN 10255 Steel Pipe
At UNIACERO, we pride ourselves on supplying steel pipes that adhere to the BS EN 10255 standard, a renowned European standard that sets the benchmark for non-alloy steel pipes suitable for welding or threading. This standard, ratified by European Standards Organizations, ensures that our pipes meet the highest quality and safety standards. As a part of the Euronorm family, our products guarantee seamless integration into projects across all EU member states. Our pipes are versatile and suitable for various industries from construction to gas and water distribution. With UNIACERO, you’re not just purchasing steel pipes; you’re investing in European quality and excellence.
EN 10255 Specification
Our BS EN 10255 pipes come with precise specifications ensuring their reliability and durability. They are crafted from the steel grade S195T, ensuring robustness. The pipes undergo rigorous testing for chemical composition and mechanical properties, ensuring they meet the necessary safety and quality standards. We offer various finishes, including flat-end pipes and threaded and socket-end pipes, giving our clients a plethora of options to choose from. Furthermore, our pipes are compatible with international standards like ASTM A53 and EN 10217-1, ensuring global applicability.
| Production Standard | EN10255 |
| Manufacturing Processes | ERW (Electric Resistance Welding) |
| SMLS (Hot Finished / Cold Drawn Seamless) | |
| Outside Diameter | 2mm -5.4mm (1/8″ – 6″) |
| Wall Thickness | 2mm – 5.4mm (light-medium-heavy) |
| Pipe Length | standard 6 or 6.4m Random 4- 16mtr |
| Steel Grade | S195 T |
| Corrosion Prevention | Lacquer, Varnish, Oiling, Galvanizing |
| FBE, 2LPP, 3LPP, 2LPE, 3LPE | |
| End Processes | Square Cut, Bevelling, Threading, Socket,Grooving |
| Further Processing | Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding |
EN 10255 Dimension Table
Our pipes are available in a range of sizes, from an outside diameter of 10.2 mm to 165.1 mm, catering to diverse project requirements. They come in two series, medium and heavy, and three types of designated thicknesses. Whether you’re looking for pipes for structural purposes or fluid transport, our dimension table ensures you find the perfect fit for your needs.
| Dimensions, Diameter Tolerance And Mass Per Unit Length | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Specified Outside Diametera D (mm) | Thread Sizea R | Outside Diameter | H Heavy Series | M Medium Series | |||||
| max. (mm) | min. (mm) | Wall Thickness T (mm) | Mass Per Unit Length Of Bare Tube | Wall Thickness T (mm) | Mass Per Unit Length Of Bare Tube | ||||
| Plain End (kg/m) | Socketed (kg/m) | Plain End (kg/m) | Threaded and Socketed (kg/m) | ||||||
| 10.2 | 1/8 | 10.6 | 9.8 | 2.6 | 0.487 | 0.490 | 2.0 | 0.404 | 0.407 |
| 13.5 | 1/4 | 14.0 | 13.2 | 2.9 | 0.765 | 0.769 | 2.3 | 0.641 | 0.645 |
| 17.2 | 3/8 | 17.5 | 16.7 | 2.9 | 1.02 | 1.03 | 2.3 | 0.839 | 0.845 |
| 21.3 | 1/2 | 21.8 | 21.0 | 3.2 | 1.44 | 1.45 | 2.6 | 1.21 | 1.22 |
| 26.9 | 3/4 | 27.3 | 26.5 | 3.2 | 1.87 | 1.88 | 2.6 | 1.56 | 1.57 |
| 33.7 | 1 | 34.2 | 33.3 | 4.0 | 2.93 | 2.95 | 3.2 | 2.41 | 2.43 |
| 42.4 | 1 1/4 | 42.9 | 42.0 | 4.0 | 3.79 | 3.82 | 3.2 | 3.10 | 3.13 |
| 48.3 | 1 1/2 | 48.8 | 47.9 | 4.0 | 4.37 | 4.41 | 3.2 | 3.56 | 3.60 |
| 60.3 | 2 | 60.8 | 59.7 | 4.5 | 6.19 | 6.26 | 3.6 | 5.03 | 5.10 |
| 76.1 | 2 1/2 | 76.6 | 75.3 | 4.5 | 7.93 | 8.05 | 3.6 | 6.42 | 6.54 |
| 88.9 | 3 | 89.5 | 88.0 | 5.0 | 10.3 | 10.5 | 4.0 | 8.36 | 8.53 |
| 114.3 | 4 | 115.0 | 113.1 | 5.4 | 14.5 | 14.8 | 4.5 | 12.2 | 12.5 |
| 139.7 | 5 | 140.8 | 138.5 | 5.4 | 17.9 | 18.4 | 5.0 | 16.6 | 17.1 |
| 165.1 | 6 | 166.5 | 163.9 | 5.4 | 21.3 | 21.9 | 5.0 | 19.8 | 20.4 |
| a For relationship between specified outside diameter (D), thread size (R) and nominal diameter (DN), see Annex A. T = specified wall thickness. | |||||||||
Chemical Requirements of EN 10255
To ensure the highest quality, our pipes adhere to strict chemical composition requirements set by the BS EN 10255 standard. This ensures that the pipes are not only strong but also resistant to various environmental factors, ensuring longevity and reliability.
| Chemical Composition (Cast Analysis) And Mechanical Properties | ||||||||
|---|---|---|---|---|---|---|---|---|
| Steel Grade | Chemical Composition % | Mechanical Properties | ||||||
| Upper Yield Strength ReH min. (MPa) | Tensile Strength Rm (MPa) | Elongation A min. % | ||||||
| Steel Name | Steel Number | C max | Mn max | P max | S max | |||
| S 195T | 1.0026 | 0.20 | 1.40 | 0.035 | 0.030 | 195 | 320 to 520 | 20 |
Mechanical Requirements of EN 10255
Our pipes undergo rigorous mechanical testing to ensure they can withstand the pressures of their intended use. From tensile strength to elasticity, we ensure that our pipes meet and exceed the mechanical requirements set by the BS EN 10255 standard.
| Chemical Composition (Cast Analysis) And Mechanical Properties | ||||||||
|---|---|---|---|---|---|---|---|---|
| Steel Grade | Chemical Composition % | Mechanical Properties | ||||||
| Upper Yield Strength ReH min. (MPa) | Tensile Strength Rm (MPa) | Elongation A min. % | ||||||
| Steel Name | Steel Number | C max | Mn max | P max | S max | |||
| S 195T | 1.0026 | 0.20 | 1.40 | 0.035 | 0.030 | 195 | 320 to 520 | 20 |
Steel Grades in EN 10255
We use the S195T steel grade for our pipes, a grade known for its strength and durability. This ensures that our pipes are not only robust but also suitable for a wide range of applications, from construction to fluid transport.
- S195T
Production Tolerance of EN 10255
For welded tubes the tolerance on wall thickness is:
± 10 % .for M and H series and Type L ;
– 8 % with the plus tolerance limited by the mass tolerance, for Types L1 and L2.
8.4.5 The mass tolerance on welded tubes is:
± 7,5 % on bundles of 10 tons or more, for M and H series and Type L ;
+10% -8% on individual tubes for Types L1 and L2.
For seamless tubes the tolerance on wall thickness is ± 12,5 %. The maximum tolerance does not apply if the actual weight of a bundle does not exceed the theoretical weight, calculated from the nominal mass per unit length (see Tables 2, B1, B2, or B3, as appropriate), by more than + 7,5 %.
