CITON HYDRAULIC
Precision-finished tubes for hydraulic cylinder applications.
Technical Specifications
Precision-finished tubes for hydraulic cylinder applications.
Product suitability, material grade, dimensions and delivery requirements should be confirmed against your drawing or specification.
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Technical Specifications
Technical values use the user-confirmed 20#/45# values and original source data for 27SiMn/Q355E.
| Steel Grade | C | Si | Mn | P | S | Cr | Ni | Cu | V | Al |
|---|---|---|---|---|---|---|---|---|---|---|
| E355 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | ≤0.25 | / | / |
| 20# | ≤0.20% | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | ≤0.25 | / | / |
| 45# | 0.42-0.50 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.50 | ≤0.30 | / | / |
| Q355B | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.030 | ≤0.025 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.15 | ≥0.015 |
| Q355D | 0.12-0.18 | 0.2-0.5 | 1.2-1.7 | ≤0.025 | ≤0.025 | ≤0.30 | ≤0.50 | ≤0.20 | 0.04-0.15 | ≥0.02 |
| Q355E | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.30 | ≤0.20 | / | / |
| 25Mn | 0.22-0.29 | 0.17-0.37 | 0.7-1.0 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | ≤0.25 | / | / |
| 27SiMn | ≤0.22 | ≤0.55 | ≤1.60 | ≤0.025 | ≤0.025 | / | / | / | / | ≥0.02 |
| 1026 | 0.22-0.28 | ≤0.3 | 0.6-0.9 | ≤0.035 | ≤0.025 | ≤0.20 | ≤0.30 | ≤0.35 | / | / |
| E470 | 0.16-0.22 | 0.10-0.50 | 1.30-1.70 | ≤0.030 | ≤0.035 | / | / | / | 0.08-0.15 | / |
| P460 | ≤0.2 | ≤0.6 | 1.0-1.7 | ≤0.025 | ≤0.015 | ≤0.30 | ≤0.80 | ≤0.70 | ≤0.20 | ≥0.02 |
| P620 | ≤0.2 | ≤0.6 | 1.0-1.7 | ≤0.025 | ≤0.015 | ≤0.30 | ≤0.80 | ≤0.30 | ≤0.20 | ≥0.02 |
| Working Method | Tube ID (mm) | Length (m) | Straightness (mm/m) | Tolerance on ID | Tolerance on WT | ID Roughness (μm) |
|---|---|---|---|---|---|---|
| Cold Drawing | 40–400 | ≤12 | 0.2–0.5 | — | ±5% | ≤1.6 |
| Cold Rolling | 40–150 | ≤12 | 0.2–0.5 | — | ±5% | ≤0.8 |
| Cold Drawing + Honing | 40–400 | ≤8 | 0.2–0.3 | H8–H9 | ±5% | ≤0.4 |
| Cold Drawing + Rolling | 50–300 | ≤8 | 0.2–0.3 | H8–H9 | ±5% | ≤0.2 |
| Deep Hole Boring + Honing | 250–400 | ≤8 | 0.2–0.3 | H8–H9 | ±5% | ≤0.8 |
| Deep Hole Boring + Rolling | 250–400 | ≤8 | 0.2–0.3 | H8–H9 | ±5% | ≤0.4 |
| Steel Grade | BK Tensile Strength (N/mm²) | BK Elongation δ5 (%) | BK+S Tensile Strength (N/mm²) | BK+S Yield Strength (N/mm²) | BK+S Elongation δ5 (%) | BK+S Hardness (HB) | BK+S Impact Value (-20°C, J) |
|---|---|---|---|---|---|---|---|
| E355/ST52 | ≥700 | ≥5 | ≥650 | ≥580 | ≥15 | 195 | ≥27 |
| 20# | ≥550 | ≥8 | ≥520 | ≥400 | ≥15 | 170 | / |
| 45# | ≥680 | ≥5 | ≥630 | ≥520 | ≥12 | 190 | / |
| Q355B | ≥660 | ≥8 | ≥620 | ≥520 | ≥15 | 190 | / |
| Q355D | ≥660 | ≥8 | ≥620 | ≥520 | ≥15 | 190 | ≥27 |
| Q355E | ≥660 | ≥8 | ≥620 | ≥520 | ≥15 | ≥190 | ≥27 |
| 25Mn | ≥640 | ≥5 | ≥620 | ≥510 | ≥15 | 190 | / |
| 27SiMn | ≥780 | ≥8 | ≥700 | ≥580 | ≥10 | 220 | / |
| 1026 | ≥640 | ≥8 | ≥620 | ≥510 | ≥15 | ≥190 | / |
| E470 | / | / | ≥710 | ≥590 | ≥15 | / | / |
| P460 | / | / | ≥710 | ≥590 | ≥15 | ≥190 | ≥27 |
| P620 | / | / | ≥730 | ≥630 | ≥15 | ≥220 | ≥27 |
Product features
Applications
Typical application suitability depends on the final design, operating conditions, material grade and customer specification.
View Applications →Related products