EN10305-2 E275 High Precision Welded Steel Tube Round Tubing for Machine Applications
High-precision welded steel tube round tubing for demanding machine applications. Made from high-quality steel alloys, our tubes are precision-manufactured to ensure exceptional strength, accuracy and durability. With tight tolerances and smooth finishes, our round tubing is ideal for hydraulic lines, pneumatic lines, and machinery components, providing reliable performance in high-stress environments.
| Material | E275 |
|---|---|
| Other Material Available | 45#, E235, E355 |
| Standard | EN10305-2 |
| Delivery Condition | +C, +N |
| Size Range | Outer Diameter: φ10-φ50 Wall Thickness: 1.5-8 |
| Application | High Precision Steel Tube is Widely Used in Automotive Part, Hydraulic System, High-precision Machining |
Produced by cold drawing over mandrel and die on the ERW welded steel tube, to achieve better tolerance and good concentricity. Both outside and inside weld seam is completely removed during the cold drawing process.
| Steel Number | Quality Level | Thickness/mm | Deoxidize Method | C(%)≤ | Si(%)≤ | Mn(%)≤ | P(%)≤ | S(%)≤ |
|---|---|---|---|---|---|---|---|---|
| E185(Fe310) | 0 | - | - | - | - | - | - | - |
| E235(Fe360) | A | ≤16 | N | 0.22 | - | - | 0.050 | 0.050 |
| B | ＞16-25 | - | 0.17 | 0.40 | 1.40 | 0.045 | 0.045 | |
| C | ≤40 | - | 0.20 | 0.40 | 1.40 | 0.045 | 0.045 | |
| D | ＞40 | E | 0.17 | 0.40 | 1.40 | 0.045 | 0.045 | |
| D | ＞40 | NE | 0.20 | 0.40 | 1.40 | 0.045 | 0.045 | |
| D | ＞40 | NE | 0.17 | 0.40 | 1.40 | 0.040 | 0.040 | |
| D | ＞40 | GF | 0.17 | 0.40 | 1.40 | 0.035 | 0.035 | |
| E275(Fe430) | A | ≤40 | - | 0.24 | - | - | 0.050 | 0.050 |
| B | ＞40 | E | 0.21 | 0.40 | 1.50 | 0.045 | 0.045 | |
| C | ＞40 | NE | 0.22 | 0.40 | 1.50 | 0.045 | 0.045 | |
| D | ＞40 | NE | 0.20 | 0.40 | 1.50 | 0.040 | 0.040 | |
| D | ＞40 | GF | 0.20 | 0.40 | 1.50 | 0.035 | 0.035 | |
| E355(Fe510) | C | ≤30 | NE | 0.20 | 0.55 | 1.60 | 0.040 | 0.040 |
| C | ＞30 | NE | 0.22 | 0.55 | 1.60 | 0.040 | 0.040 | |
| D | ≤30 | GF | 0.20 | 0.55 | 1.60 | 0.035 | 0.035 | |
| D | ＞30 | GF | 0.22 | 0.55 | 1.60 | 0.035 | 0.035 |
Plastic bag inside and wooden box outside; or as customer requirement.
- +C: No heat treatment after the final cold drawing process
- +LC: After the final heat treatment there is a suitable drawing pass
- +SR: After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere
- +A: After the final cold drawing process the tubes are annealed in a controlled atmosphere
- +N: After the final cold drawing operation the tubes are normalized in a controlled atmosphere
30% TT in advance, balance before shipment or B/L at sight.
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