TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED Make Your Steel Tube Purchase Easy!
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Hydraulic Cylinder Steel Tube
Standard: DIN2391
Material: ST35, ST45, ST52, CK45
Size:Outer diameter: 10-350mm, Wall thickness: 1-30mm, Length: max12m
Delivery condition: BK
Surface: surface is clean and smooth, without oxide scale
Packing: sea worthy packing in bundles or boxes ,
Delivery term: shipped in 30-45 days after payment
Application: used in hydraulic cylinders, penumatic cylinders, honing, auto parts, precision purpose,etc.
| Steel Grade | Chemical Composition | |||||
| Symbol | Material Number | C | Si | Mn | P | S |
| Max. | Max. | Max. | Max. | |||
| ST35 | 1.0308 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| ST45 | 1.0408 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| ST52 | 1.058 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
| Steel Grade | BK | BKW | BKS | |||||
| Name | No. | Rm | A | Rm | A | Rm | ReH | A |
| Mpa | % | Mpa | % | Mpa | Mpa | % | ||
| ST35 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 315 | 14 |
| ST45 | 1.0408 | 580 | 5 | 520 | 8 | 520 | 375 | 12 |
| ST52 | 1.058 | 640 | 4 | 580 | 7 | 580 | 450 | 10 |
| Steel Grade | GBK | NBK | ||||
| Name | No. | Rm | A | Rm | ReH | A |
| Mpa | % | Mpa | Mpa | % | ||
| ST35 | 1.0308 | 315 | 25 | 340--470 | 235 | 25 |
| ST45 | 1.0408 | 390 | 21 | 440--570 | 255 | 21 |
| ST52 | 1.058 | 450 | 22 | 490--630 | 355 | 22 |