Quilted Steel Pipe Hydraulic Steel Pipes
High Precision and Smooth Finish
Quilted steel pipes are manufactured through cold drawing or hot rolling, resulting in excellent dimensional accuracy and a smooth internal and external surface finish, which ensures reliable performance in precision applications.Superior Strength and Pressure Resistance
With no oxide layer, no leakage under high pressure, and resistance to deformation during cold bending, these pipes are highly durable and capable of withstanding demanding hydraulic and pneumatic conditions.Excellent Processing Performance
The pipes demonstrate outstanding stability with no flaring or cracks during flattening, making them easy to process and ensuring consistent quality in manufacturing and assembly.Versatile Application in Hydraulic Systems
As precision seamless steel pipes, quilted pipes are widely used in hydraulic and pneumatic components such as cylinders. They are also available in fluid pipes and oil steel bobbins, providing versatile solutions for various hydraulic system requirements.
The quilted steel pipe is a high-precision steel pipe treated by cold drawing or hot rolling. Due to the advantages of no oxide layer on the inner and outer walls of the precision steel tube, no leakage under high pressure, high precision, high finish, no deformation in cold bending, no flaring, no cracks in flattening, etc., it is mainly used to produce products for pneumatic or hydraulic components, such as cylinders or cylinder. The chemical composition of quilted steel pipe is carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, chromium Cr.
The main advantages of quilted steel pipe:
1. Improve the surface roughness, the roughness can basically reach Ra≤0.08μm.
2. Correct the roundness, the ellipticity can be ≤0.05mm.
3. Improve surface hardness, eliminate stress and deformation, and increase hardness by HV≥4°
4. After processing, there is a residual stress layer, which improves the fatigue strength by 30%.
5. Improve the quality of fit, reduce wear, and prolong the service life of parts, but the processing cost of parts is reduced instead
Honed steel pipes are processed by rolling. Residual compressive stress in the surface layer helps seal microcracks and hinders the expansion of erosion. This improves surface corrosion resistance and delays the onset or expansion of fatigue cracks, thereby increasing the fatigue strength of the honed steel pipe. Rolling forms a cold-work hardened layer on the surface, reducing elastic and plastic deformation at the contact surface of the grinding pair. This improves the wear resistance of the honed steel pipe's inner wall and avoids burns caused by grinding. The reduced surface roughness after rolling improves the fit.
Hydraulic steel pipe, also known as honed pipe, is a core component for transmitting high-pressure fluids in hydraulic systems. It is a cold-drawn or cold-rolled precision seamless steel pipe that complies with technical standards such as GB3639-83 and DIN2391-1. Its materials are primarily carbon steel (such as ST35 and ST45), alloy steel, and 304L stainless steel. It is widely used in hydraulic cylinders, pneumatic cylinders, construction machinery, and automotive precision components.
This product undergoes cold drawing/cold rolling, followed by pickling and phosphating processes. It features an oxide-free inner and outer surface, high dimensional accuracy (inner diameter accuracy of 0.02-0.05mm), and low surface roughness. It can withstand high pressure and resist deformation. As a specialized type of oil-rich steel tubing, honed pipe requires precise routing design. During installation, controlled bend radius, anti-contamination measures, and welding techniques are required to minimize oil leakage. Its production involves specialized equipment such as honing machines. The routing must ensure rigidity and vibration resistance, and be secured with brackets to meet high-pressure piping standards.
The fluid pipe on the hydraulic system is close to the domestic national standard GB3639-83. Introduction of hydraulic steel pipe: cold-drawn or cold-rolled precision seamless steel pipe with high dimensional accuracy and good surface finish for hydraulic equipment. The precision seamless steel pipe is used to manufacture mechanical structures or hydraulic equipment, etc. The precision steel pipe is a high-precision seamless steel pipe after cold drawing or cold rolling. Because there are no oxide layers on the inner and outer walls of the precision steel pipe, no leakage under high pressure, high precision, high finish, no deformation in cold bending, no flaring, no cracks in flattening, etc., it is mainly used to produce pneumatic or hydraulic products.
FAQ
Q: About the price of the product
A: Due to the rise and fall of raw material prices, as well as factors such as the national power restriction policy, product prices will also fluctuate. Welcome to contact us to get the latest product price.
Q: Can you arrange shipment?
A: Of course, we have multiple warehouse locations as well as regular forwarders, and can get the best price from most shipping companies. Provide professional transportation services.
Q: How long will the delivery take?
A: Products that are in stock or only need simple processing, generally 5-15 days. If there is no stock, according to the required product quantity and the usual production time of this product, our professional sales staff will give you an approximate delivery time. According to past experience, in most cases, the delivery time will not exceed 45 days.
Q: What services do you provide?
A: 1. Provide samples, including conventional steel products and some customized steel structure products;
2. Support third-party product quality testing and provide various certificates
3. Provide pick-up and drop-off customer inspection service
4. Provide customized steel structure service
5. Provide simple steel processing, such as cutting, drilling, galvanizing, polishing and other services
6. Provide one-stop service, from product production to product transportation.
7. Provide 24 hours online service
