Phone: +86-15954941919     E-mail:

Hydraulic honing steel pipe

Din2391 st37.4 hydraulic cylinder honed tube


Certificate:API CE RoHS BIS JIS ISO9001

Tolerance:±1% 0.05mm

Processing Service:Welding Punching Cutting Bending polishing

Section Shape:Round

Oiled or Non-oiled:heavy Oiled or according your request

  • Product Detail

Product Description

The honing pipe is processed by rolling. Because the surface layer has residual surface stress, it can help close the surface of the micro cracks and prevent the expansion of corrosion. Thereby increasing the surface corrosion resistance, and can reduce the generation or expansion of fatigue cracks, thus increasing the fatigue strength of the honing pipe.

Product display

Steel Grade Rm Mpa ReH Mpa Elonggation cold finished Rm Mpa cold finished Elonggation
20# ≥520 ≥375 ≥15 ≥550 ≥8
45# ≥600 ≥520 ≥10 ≥640 ≥5
16Mn(Q345B /D) ≥600 ≥520 ≥14 ≥640 ≥5
25Mn ≥600 ≥510 ≥15 ≥640 ≥5
27SiMn ≥760 ≥610 ≥10 ≥800 ≥5
St45 ≥520 ≥375 ≥15 ≥550 ≥5
E355(st52) ≥600 ≥520 ≥14 ≥640 ≥5
SAE1026 ≥600 ≥510 ≥15 ≥640

With the personalized needs of honing tubes, honing tube manufacturers need to adopt scientific design methods to meet the needs of users. With the increasingly fierce competition, the profit margin of the steel market is getting smaller and smaller, and the price is getting higher and higher. Each steel pipe market has different specifications and more than 10,000 types.

Honing tube, honing oil cylinder tube, hydraulic cylinder tube, hydraulic honing tube, precision honing tube, scraping and rolling tube, hydraulic pneumatic cylinder tube, hydraulic oil cylinder tube, oil cylinder tube, grinding tube, rolling cylinder.

Advantages of our honing tube:

1) High precision tolerance; Our honing tubes can meet ID tolerances H7, H8, H9... And so on.

2) High pressure seamless tube; We only use cold-drawn seamless tubes to produce honing tubes, which means our honing tubes can work at higher pressures, so our honing tubes are more suitable for hydraulic cylinders.

3) High smoothness of inner surface; The roughness of our honing tube is Ra 0.4um surface roughness.

4) Flexible order quantity: we accept small batch orders, even if only one hydraulic cylinder we can produce and supply.

5) More than 20 years of production and export experience, to ensure the quality of the process

6) Factory, adequate supply of goods, stable delivery.

7) Select raw materials to ensure the quality of steel.

8) Good at ST52,SAE4140,42CrMo and other materials of high strength alloy seamless tube, hydraulic cylinder tube, can do any size, customized length.

Application: widely used in hydraulic cylinder, cylinder, agricultural machinery, lifting truck, truck, automobile, motorcycle, automobile shock absorber, hydraulic accessories, electric power, engineering, pipeline, ship, aerospace, bearing, boiler equipment and other industries.

Shandong Kuaoma produces and operates various specifications and models of honing tubes, oil cylinder tubes, rolling tubes, hydraulic cylinder tubes, oil cylinder tubes, thick wall honing tubes, stainless steel honing tubes, large diameter honing tubes, high precision cold drawing honing cylinder tubes, etc. Complete specifications and models, the company has tens of thousands of tons of various materials and models all year round, honing pipe manufacturers processing, logistics and distribution one-stop to meet your needs

What if the piston rod is broken

1. Adjust the moving speed between the piston rod and the induction switch to prevent the appearance of the heat treatment belt.

2, moderately expand the output power of electromagnetic induction heating, so that the surface strength and reasonable hard bottom layer deep consideration of commodity technical requirements.

3. After quenching and tempering, it should be ensured that the internal stress caused by the straightening of the workpiece of the straightening product does not hinder the manufacturing and application of mechanical processing afterwards, and the stress should be solved if necessary.

Piston rod rolling processing

The piston rod through rolling forming, the rolling surface will form a layer of cold work hardening layer, so that can effectively reduce the elastic and plastic deformation of the grinding contact surface, and can delay the generation or expansion of fatigue crack, so as to improve the surface corrosion resistance.

Chrome plating of piston rod

The piston rod can have a hard, smooth and corrosion resistant surface after chrome plating. In order to improve the corrosion resistance of the piston rod surface, it is necessary to go through chrome plating. After chromium plating, the hardness of the piston rod coating can be as high as HV1100, and the coating is smooth, uniform thickness, strong dispersion ability, so that it can be greatly improved in some aspects.

Quenching and tempering of piston rod

The quenching and tempering of the piston rod is the quenching and tempering treatment of the piston rod. After the quenching and tempering treatment, the working strength of the material can be effectively improved, which helps to close the micro-cracks on the surface and hinder the expansion of erosion, so as to improve the surface corrosion resistance. However, not all piston rods need to be tempered, so the quenching and tempering treatment should be judged according to the actual situation and materials.


Q:What is your terms of payment?

A:We usually accept T/T in advance, L/C for large sum.If you prefer other payments terms, please discuss.

Q:What is the terms of delivery?


Q:What is the terms of packing?

A:Generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers' requirements.

Q:What is your delivery time?

A:For products in stock, we can ship it within 7 days after receiving the deposit.For custom order, production time is 15-30

workdays after received the deposit.

Q:Could you produce according to the samples?

A:Yes, we could customer-made by your samples or technique drawings, we could build the mold and fixtures.

Q:Can I place an sample order and what is your MOQ if I accept your quality?

A:Yes, we can send you samples but you may pay the express fees, our MOQ is 1 ton.

Q:How could you guarantee your products?

A:We accept and support the third-party inspection.We also could issue the warranty to customer to guarantee the quality.

Q:Where is the port of shipment?

A:Ningbo or Shanghai sea port.

Q:How can I get the price of needed product?

A:It's the best way if you can send us the material, size and surface, so we can produce for u to check the quality.If you

still have any confusion, just contact us, we would like to be helpful.



Leave a Reply