Dactron Pipe
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In today's industrial landscape, the demand for precision-engineered components has never been higher. Whether it's in the automotive, aerospace, or manufacturing sectors, the need for high-quality tubes and pipes is constant. Cold-drawn seamless tubes have emerged as a go-to choice for businesses seeking reliability, durability, and precision in their applications.
A cold-drawn seamless tube is a cylindrical product manufactured by drawing a solid metal billet through a piercing rod to create a hollow tube without any seams or welds. The absence of seams enhances the tube's structural integrity and resistance to various stresses, making it an ideal choice for critical applications.
Cold-drawn seamless tubes exhibit excellent tilt deformation ability, allowing them to withstand bending and shaping without compromising their structural integrity.
These tubes are known for their exceptional rigidity, suitable for applications where stability and resistance to deformation under heavy loads are crucial.
The tubes have low elongation, meaning they don't stretch easily under stress, which is advantageous in high-pressure environments.
They can withstand sudden shocks and vibrations. The absence of seams and welds contributes to high crack resistance, ensuring long-lasting performance.
Cold drawing is a precision manufacturing process involving several stages:
| Processing type | Bore Diameter | Length | Straightness | Accuracy | Roughness |
|---|---|---|---|---|---|
| Cold-drawn Pipe | Φ45-630mm | ≤13M | 0.3mm-1mm | H8-H10 | Ra0.8-Ra1.6 |
| Boring & Rolling | Φ40-630mm | ≤6M | ≤0.3mm | H7-H8 | ≤Ra0.4 |
| Steel Grade | Tensile strength Rm(MPa) | Yield strength ReH(MPa) | Elongation A5(%) |
|---|---|---|---|
| 20# | ≥520 | ≥375 | ≥15 |
| 45# | ≥600 | ≥520 | ≥10 |
| 16Mn (S355) | ≥600 | ≥520 | ≥14 |
| 27SiMn | ≥760 | ≥610 | ≥10 |
| St52 / E355 | ≥600 | ≥520 | ≥14 |
They offer superior dimensional accuracy, a smoother surface finish, and higher mechanical strength compared to hot-rolled tubes.
We can process pipe diameters ranging from φ45mm to φ630mm with high precision.
Yes, they are widely used in hydraulic cylinders due to their high rigidity, impact strength, and excellent inner hole roughness (Ra0.4-Ra1.6).
Quality is ensured through stringent measures including dimensional checks, non-destructive testing, and material analysis in our laboratory.
Yes, specific technical parameters and steel grades (like 20#, 45#, 27SiMn, St52) can be negotiated based on application requirements.
The standard delivery status is cold drawing followed by stress relief annealing to maintain optimal mechanical properties.
