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Home > Carbon Steel >EN10305-1 / EN10305-4 Seamless Tubing
EN 10305-1 / EN 10305-4 Seamless Tubing is engineered for industries where precision, strength, and reliability cannot be compromised. Manufactured to stringent EN standards, these seamless tubes provide uniform wall thickness, superior dimensional accuracy, and exceptional structural integrity. Designed to withstand high pressure, heavy mechanical stress, and demanding operational environments, they deliver consistent long-term performance. Trusted in automotive, hydraulic, energy, and industrial machinery applications, this tubing combines toughness, machinability, and resistance to wear and fatigue. When systems demand durability, safety, and operational confidence, EN 10305-1 / EN 10305-4 Seamless Tubing provides a dependable solution that stands strong under pressure.
EN 10305-1 / EN 10305-4 Seamless Tubing is generally made from low-carbon steel grades like E235 (St 37.4), E255, or E355, which contain about 0.17–0.22% carbon, up to 1.20% manganese, and small amounts of phosphorus and sulfur. These tubes boast a tensile strength ranging from 340–640 MPa, yield strength between 235 to 520 MPa, and elongation rates of 22–30%, depending on the specific grade and condition. The cold drawing process enhances both dimensional accuracy and surface finish while ensuring excellent formability, weldability, and toughness—making them perfect for high-precision hydraulic and mechanical systems.
| Steel Name | Steel Number | C max. | Si max. | Mn max. | P max. | S max. | AL min. |
| E215 | 1.0212 | 0.10 | 0.05 | 0.7 | 0.025 | 0.025 | 0.025 |
| 1.0308 | 0.17 | 0.35 | 1.2 | 0.025 | 0.025 | / | |
| E355 | 1.058 | 0.22 | 0.55 | 1.6 | 0.025 | 0.025 | / |
| Mechanical properties at room temperature | |||||||||||||
| Steel Grade | Minimum values for the delivery condition | ||||||||||||
| Steel Name | Steel Number | +C | +LC | +SR | +A | +N | |||||||
| Rm Mpa | A % | Rm Mpa | A % | Rm Mpa | ReH Mpa | A % | Rm Mpa | A % | Rm Mpa | ReH Mpa | A % | ||
| E215 | 1.0212 | 430 | 8 | 380 | 12 | 380 | 280 | 16 | 280 | 30 | 290 to 430 | 25 | 30 |
| E235 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 350 | 16 | 315 | 25 | 340 to 480 | 235 | 25 |
| E355 | 1.0580 | 640 | 4 | 580 | 7 | 580 | 450 | 10 | 450 | 22 | 490 to 630 | 355 | 22 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
When you choose EN10305-1 / EN10305-4 Seamless Tubing from Samia Pipes and Tubes, you can count on exceptional quality and long-lasting durability. These tubes offer excellent corrosion resistance and high strength, making them perfect for various industrial applications. Our commitment to outstanding service and reliable delivery guarantees customer satisfaction with every order. With extensive expertise in stainless steel products, we provide premium solutions tailored to meet your unique needs.
Samia Pipes and Tubes, a top supplier of EN10305-1 / EN10305-4 Seamless Tubing in Tunis, Tunisia, offers a comprehensive range of high-quality pipes and tubes for various industrial applications. With an extensive inventory and a commitment to exceptional customer service, they have become the go-to source for stainless steel products in the area.
At Samia Pipes and Tubes, we specialize in providing custom-sized EN10305-1 / EN10305-4 Seamless Tubing designed to meet your specific requirements. Our expert team is committed to delivering personalized solutions for all your piping and tubing needs. For more details, contact us at sales@samiapipes.com.
EN 10305-1 / EN 10305-4 Seamless Tubing finds extensive use in hydraulic and pneumatic systems, automotive components, machine manufacturing, and mechanical engineering. The EN 10305-1 tubes are ideal for precision mechanical applications, while the EN 10305-4 is specifically tailored for hydraulic and fluid power systems, including cylinder barrels, hydraulic lines, and fuel injection tubing. These tubes are also prevalent in agricultural machinery, aerospace equipment, and industrial automation. Their precise tolerances, pressure resistance, and surface quality make them a go-to choice for various applications.
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