DIN2391 Standard OD10 Precision Steel Tube for Inner Cylinder Applications
Precision Steel Tube, a carbon cold drawn steel tube, is specifically designed for inner cylinder applications. Known for its high strength, durability, and precise dimensions, it ensures optimal performance and reliability. Manufactured to strict quality standards, this tube offers excellent corrosion resistance and wear resistance. Its lightweight yet strong construction makes it ideal for various industrial uses, promoting efficiency and longevity. Tailored to meet precise specifications, it provides enhanced functionality and reduced maintenance, making it a cost-effective solution for demanding environments.
- Auto industry
- Machinery use
- Oil cylinder tube
- Motorcycle shock absorber
- Auto shock absorber
- Inner cylinder
- Telescopic cylinders
- Jack lifting system
- Hydraulic cylinders
The internal and external surface finish of the tubes is smooth, while the weld seam is not visible or tangible. The ID surface has a roughness of Ra≤4μm, with the best achievable smoothness being Ra≤0.8μm. The inner surface can be measured and reported if requested by the purchaser before purchase order.
| Steel Grade | C% | Si% | Mn% | P% | S% | AL% |
|---|---|---|---|---|---|---|
| E215 | ≤0.10 | ≤0.05 | ≤0.7 | ≤0.025 | ≤0.025 | ≥0.025 |
| E235 | ≤0.17 | ≤0.35 | 0.4-1.2 | ≤0.025 | ≤0.025 | |
| E255 | ≤0.21 | ≤0.35 | 0.4-1.1 | ≤0.025 | ≤0.025 | |
| E355 | ≤0.22 | ≤0.55 | ≤1.6 | ≤0.025 | ≤0.025 |
| Steel Grade | +C | +LC | +SR | +A | +N |
|---|---|---|---|---|---|
| Steel Symbol | Rm MPa | A % | Rm MPa | A % | Rm MPa | ReH Mpa | A % | Rm MPa | A % | Rm MPa | ReH Mpa | A % |
| E155 | 400 | 6 | 350 | 10 | 350 | 245 | 18 | 260 | 28 | 270-410 | 155 | 28 |
| E195 | 420 | 6 | 370 | 10 | 370 | 260 | 18 | 290 | 28 | 300-440 | 195 | 28 |
| E235 | 490 | 6 | 440 | 10 | 440 | 325 | 14 | 315 | 25 | 340-480 | 235 | 25 |
| E275 | 560 | 5 | 510 | 8 | 510 | 375 | 12 | 390 | 21 | 510-550 | 275 | 21 |
| E355 | 640 | 4 | 590 | 6 | 590 | 435 | 10 | 450 | 22 | 490-630 | 355 | 22 |
- BK (+C) - Cold finished/hard (cold finished as drawn)
- BKW (+LC) - Cold finished/soft
- BKS (+SR) - Cold finished/stress relieve annealed
- GBK (+A) - Annealed
- NBK (+N) - Normalized
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