EN 10305-1 E355 Seamless Precision Steel Tubes are cold drawn seamless tubes of high strength produced to meet high dimensional tolerances, smooth surfaces and consistent mechanical properties. These tubes are manufactured from E355 carbon steel that has controlled carbon, manganese, phosphorus and sulphur content and thus have good weldability, pressure bearing and machinability. The material is usually with at least 355MPa minimum yield strength and high tensile strength, appropriate for high-stress engineering application. These tubes are produced in accordance with EN 10305-1 standard and offered in different diameters, wall thicknesses and delivery conditions, which are suitable for different industrial needs. Typical applications are hydraulic/pneumatic systems, automotive parts, in the manufacture of machinery, and precision engineering. We provide the highest standard of quality precision steel seamless tubes with the designation of EN 10305-1 E355 at usapipingsolution, which meet the highest international quality standards.
Specifications of EN 10305-1 E355 Seamless Precision Steel Tubes
| Parameter | EN 10305-1 Specific Value / Requirement |
|---|---|
| Standard | EN 10305-1:2016 | DIN EN 10305-1:2003 |
| Manufacturing Method | Cold-drawn seamless |
| Outer Diameter (OD) Range | 4 mm to 120 mm (stock) | up to 380 mm on request |
| Wall Thickness Range | 0.5 mm to 20 mm |
| Delivery Conditions | +C (Hard), +LC (Soft), +SR (Stress Relieved), +A (Annealed), +N (Normalized) |
| Surface Finish | As-drawn | Honed bore (SRB) available on request |
| Inspection Documentation | EN 10204 3.1 Mill Test Certificate (MTC) standard; 3.2 on request |
| Non-Destructive Testing (NDT) | Per EN ISO 10893 series |
Equivalent Grades of EN 10305-1 E355 Seamless Precision Steel Tubes
| Standard Category | British (BS) | German (DIN) | European (EN) | Chinese (GB) |
|---|---|---|---|---|
| Grade Designation | BS | DIN | BS EN 10305-1 E355 | DIN 2391 St52 |
Sizes Chart of EN 10305-1 E355 Seamless Precision Steel Tubes
| Wall Thickness (Inch) | Available Outer Diameters (O.D.) |
|---|---|
| .010 | 1/16”, 1/8”, 3/16” |
| .012 | 1/8” |
| .016 | 1/8”, 3/16” |
| .020 | 1/16”, 1/8”, 3/16”, 1/4”, 5/16”, 3/8” |
| .028 | 1/8”, 3/16”, 1/4”, 5/16”, 3/8”, 1/2”, 3/4”, 1”, 1 1/2”, 2” |
| .035 | 1/8”, 3/16”, 1/4”, 5/16”, 3/8”, 7/16”, 1/2”, 5/8”, 3/4”, 7/8”, 1”, 1 1/4”, 1 1/2”, 1 5/8”, 2”, 2 1/4” |
| .049 | 3/16”, 1/4”, 5/16”, 3/8”, 1/2”, 5/8”, 3/4”, 7/8”, 1”, 1 1/8”, 1 1/4”, 1 1/2”, 1 5/8”, 2”, 2 1/4” |
| .065 | 1/4”, 5/16”, 3/8”, 1/2”, 5/8”, 3/4”, 7/8”, 1”, 1 1/4”, 1 1/2”, 1 5/8”, 1 3/4”, 2”, 2 1/2”, 3” |
| .083 | 1/4”, 3/8”, 1/2”, 5/8”, 3/4”, 7/8”, 1”, 1 1/4”, 1 1/2”, 1 5/8”, 1 7/8”, 2”, 2 1/2”, 3” |
| .095 | 1/2”, 5/8”, 1”, 1 1/4”, 1 1/2”, 2” |
| .109 | 1/2”, 3/4”, 1”, 1 1/4”, 1 1/2”, 2” |
| .120 | 1/2”, 5/8”, 3/4”, 7/8”, 1”, 1 1/4”, 1 1/2”, 2”, 2 1/4”, 2 1/2”, 3” |
| .125 | 3/4”, 1”, 1 1/4”, 1 1/2”, 2”, 3”, 3 1/4” |
| .134 | 1” |
| .250 | 3” |
| .375 | 3 1/2” |
Tolerance Chart of EN 10305-1 E355 Seamless Precision Steel Tubes
| Component Length (mm) | OD 30–100 mm Tolerance (mm) | OD 100–254 mm Tolerance (mm) |
|---|---|---|
| 10–100 | +1.0 / −0 | +2.0 / −0 |
| 100–600 | +2.0 / −0 | +3.0 / −0 |
| 600–1200 | +3.0 / −0 | +4.0 / −0 |
| 1200–5000 | +5.0 / −0 | +6.0 / −0 |
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Applications Uses of EN 10305-1 E355 Seamless Precision Steel Tubes
Frequently Asked Questions
What is EN 10305-1 E355 seamless precision steel tube?
EN 10305-1 E355 is a cold-drawn seamless precision steel tube known for its high strength, tight dimensional tolerances, and smooth surface finish.
What is E355 steel grade?
E355 is a high-strength carbon steel grade with a minimum yield strength of 355 MPa, commonly used in hydraulic and engineering applications.
What is the equivalent grade of EN 10305-1 E355?
E355 is commonly considered equivalent to DIN 2391 ST52 and similar high-strength precision tube grades.
Is E355 a carbon steel?
Yes, E355 is a carbon steel grade containing controlled amounts of carbon, manganese, phosphorus, and sulfur for enhanced strength and performance.
What is the difference between E235 and E355 tubes?
E355 tubes have higher yield strength and tensile strength than E235 tubes, making them better suited for high-pressure and heavy-duty engineering applications.
Mill-certified stock. EN 10305-1 E355 compliance. OD 4 to 120 mm. Honed/SRB versions available. Full MTR documentation.
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